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    SAMSON with hybrid graphics cards (Intel/Nvidia)

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    • DmitriyMarin
      DmitriyMarin last edited by DmitriyMarin

      @Ivan
      Unfortunately, I do not have a laptop with linux and an Nvidia Optimus GPU now.

      Do you have the Nouveau driver blacklisted or uninstalled? Because it causes some issues on Nvidia Optimus GPUs.
      Does optimus/bumblebee work for you in other apps? What happens if you, for example, execute in the terminal:

      optirun glxgears
      

      Does primusrun work for you? optirun relies on VirtualGL which might cause the issue you have.

      Dmitriy,
      The SAMSON Team, https://s-c.io

      Ivan 1 Reply Last reply Reply Quote 0
      • Ivan
        Ivan last edited by

        optirun glxgears works fine, I am intensively using VMD software with Nvidia. primusrun also runs well.

        I add --logconsole flag in the start script.

        Can this information help?

        dia@lenovo:~/NANO-D/SAMSON/0.7.0/Binaries$ ./SAMSON-Core.sh 
        saving context
        launching SAMSON-Core
        Python found in the system: 
        Python executable:    /usr/bin/python3
        qt.network.ssl: QSslSocket: cannot resolve CRYPTO_num_locks
        qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_id_callback
        qt.network.ssl: QSslSocket: cannot resolve CRYPTO_set_locking_callback
        qt.network.ssl: QSslSocket: cannot resolve ERR_free_strings
        qt.network.ssl: QSslSocket: cannot resolve EVP_CIPHER_CTX_cleanup
        qt.network.ssl: QSslSocket: cannot resolve EVP_CIPHER_CTX_init
        qt.network.ssl: QSslSocket: cannot resolve sk_new_null
        qt.network.ssl: QSslSocket: cannot resolve sk_push
        qt.network.ssl: QSslSocket: cannot resolve sk_free
        qt.network.ssl: QSslSocket: cannot resolve sk_num
        qt.network.ssl: QSslSocket: cannot resolve sk_pop_free
        qt.network.ssl: QSslSocket: cannot resolve sk_value
        qt.network.ssl: QSslSocket: cannot resolve SSL_library_init
        qt.network.ssl: QSslSocket: cannot resolve SSL_load_error_strings
        qt.network.ssl: QSslSocket: cannot resolve SSL_get_ex_new_index
        qt.network.ssl: QSslSocket: cannot resolve SSLv3_client_method
        qt.network.ssl: QSslSocket: cannot resolve SSLv23_client_method
        qt.network.ssl: QSslSocket: cannot resolve SSLv3_server_method
        qt.network.ssl: QSslSocket: cannot resolve SSLv23_server_method
        qt.network.ssl: QSslSocket: cannot resolve X509_STORE_CTX_get_chain
        qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_noconf
        qt.network.ssl: QSslSocket: cannot resolve OPENSSL_add_all_algorithms_conf
        qt.network.ssl: QSslSocket: cannot resolve SSLeay
        qt.network.ssl: QSslSocket: cannot resolve SSLeay_version
        qt.network.ssl: QSslSocket: cannot call unresolved function SSLeay
        qt.network.ssl: Incompatible version of OpenSSL
        libpng warning: iCCP: known incorrect sRGB profile
        =============== SBGPath summary infos ================
        
        ===============
         > SBGPath::getSAMSONPath()                       = /home/dia/NANO-D/SAMSON/0.7.0
         > SBGPath::getSDKPath()                          = .
        ===============
         > SBGPath::getUserDataPath()                     = /home/dia/NANO-D/SAMSON
         > SBGPath::getUserElementPath()                  = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Elements
         > SBGPath::getUserElementDataPath()              = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Data/Elements
         > SBGPath::getUserDownloadedElementPath()        = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Download/Elements
        ===============
         > SBGPath::getDevelopperDataPath()               = 
         > SBGPath::getDevelopperElementPath()            = /Elements
         > SBGPath::getDevelopperElementPackagedPath()    = /Connect/Elements
        ===============
         > SBGPath::getBinaryPath()                       = /home/dia/NANO-D/SAMSON/0.7.0/Binaries
        ===============
         > SBGPath::getCurrentSkinPath()                  = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default
         > SBGPath::getCursorPath()                       = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Cursors
         > SBGPath::getIconPath()                         = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Icons
         > SBGPath::getImagePath()                        = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Images
         > SBGPath::getSoundPath()                        = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Sounds
         > SBGPath::getSplashScreenPath()                 = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/SplashScreens
         > SBGPath::getStylePath()                        = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/StyleSheets
        ===============
         > SBGPath::getInterfacePath()                    = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Interface
         > SBGPath::getScratchPath()                      = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch
         > SBGPath::getScratchElementPath()               = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements
         > SBGPath::getScratchUpdatesPath()               = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Updates
         > SBGPath::getShaderPath()                       = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Shaders
         > SBGPath::getTranslationPath()                  = /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Translations
        
        =============== SBGPath summary infos ================
        
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Cursors"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Icons"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Elements"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Shaders"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/Sounds"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/SplashScreens"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Skins/Default/StyleSheets"
        "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Resource/Translations"
        
        =============================================================================
        Allowed elements ids in database: 
        1   ->   "06485695-DEE2-1383-A575-E5AABA05DCCD"
        2   ->   "154ACCDA-8950-C6B2-7456-DAB6BA82AA5D"
        3   ->   "2305E415-C812-1C1A-CDBE-78896176B067"
        4   ->   "385FE362-ADFD-CE55-95C0-4E63560EFA29"
        5   ->   "8B38B2FD-DE8D-F24A-36E7-7AC624173F9F"
        6   ->   "8CBDC8B1-59E1-6459-D68F-B840275DD5E9"
        7   ->   "9DFF7162-FFBF-C149-C9D3-2E1DEBC40321"
        8   ->   "CE375B52-7D0B-7DF0-AA3E-EB0AD85BEBFE"
        9   ->   "CEBACCDA-8950-C6B2-7456-D077BA82AA5D"
        10   ->   "EC83FAEB-1A42-FF16-EEB2-CF021EF38EBF"
        11   ->   "F912F119-7CBB-B5BD-972A-0A02DFCF683D"
        =============================================================================
        
        "start 0 0 files downloaded successfully\n"
        Could not open  "/home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/disabledElements.info"
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/06485695-DEE2-1383-A575-E5AABA05DCCD
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/154ACCDA-8950-C6B2-7456-DAB6BA82AA5D
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/2305E415-C812-1C1A-CDBE-78896176B067
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/385FE362-ADFD-CE55-95C0-4E63560EFA29
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/8B38B2FD-DE8D-F24A-36E7-7AC624173F9F
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/8CBDC8B1-59E1-6459-D68F-B840275DD5E9
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/9DFF7162-FFBF-C149-C9D3-2E1DEBC40321
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/CE375B52-7D0B-7DF0-AA3E-EB0AD85BEBFE
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/CEBACCDA-8950-C6B2-7456-D077BA82AA5D
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/EC83FAEB-1A42-FF16-EEB2-CF021EF38EBF
        Extracting /home/dia/.NANO-D/SAMSON/DATA/0.7.0/Scratch/Elements/F912F119-7CBB-B5BD-972A-0A02DFCF683D
        Registering: A visual model to represent secondary structure
        	Registering: Secondary structure
        Registering: This element contains three exporters (*xyz, *.pdb, *.mol2) to easily export models from SAMSON
        	Registering: Protein Data Bank (*.pdb)
        	Registering: XYZ (*.xyz)
        	Registering: Mol2 (*.mol2)
        Registering: An editor to generate atoms from the periodic table
        	Registering: Periodic table
        Registering: An editor to easily twist molecular systems
        	Registering: Twister
        Registering: This element contains a set of essential editors for SAMSON, for example to select, translate, erase, rotate...
        	Registering: Translation controller plane
        	Registering: Torsion
        	Registering: Ruler
        	Registering: Delegate
        	Registering: Translation controller center GUI
        	Registering: Rotation controller axis
        	Registering: Translation controller plane GUI
        	Registering: Rotation controller axis GUI
        	Registering: Angle
        	Registering: Atom-atom distance
        	Registering: Atom name
        	Registering: Translation controller axis
        	Registering: Translation controller center
        	Registering: Translation
        	Registering: Eraser
        	Registering: Rotation controller
        	Registering: Translation controller axis GUI
        	Registering: Bond order
        	Registering: Group name
        	Registering: Translation controller
        	Registering: Move camera
        	Registering: Atom creator
        	Registering: Rotation controller track-ball GUI
        	Registering: Bond length
        	Registering: Rotation controller track-ball
        	Registering: Rectangle selection
        	Registering: Lasso selection
        	Registering: Point selection
        	Registering: Rotation
        Registering: This element is a group called default visual models to easily display different molecule visualizations in SAMSON
        	Registering: Gaussian surface
        	Registering: Ball and stick
        	Registering: Ball-and-stick
        	Registering: Van der Waals
        	Registering: Lines
        	Registering: Licorice
        	Registering: Lines
        	Registering: Van der Waals
        	Registering: Gaussian surface
        	Registering: Licorice
        Registering: SAMSON document exporters (*.sam and *.samx)
        	Registering: SAMSON Documents (*.samx)
        	Registering: SAMSON Documents (*.sam)
        Registering: This element contains three importers (*xyz, *.mol2, *.pdb [with aliases: *.pdb1, ..., *.pdb6, *.ent, *.vdb]) to easily load models into SAMSON
        	Registering: Protein Data Bank (*.pdb4)
        	Registering: Protein Data Bank (*.ent)
        	Registering: Protein Data Bank (*.pdb5)
        	Registering: VIPERdb, PDB format (*.vdb)
        	Registering: Protein Data Bank (*.pdb6)
        	Registering: XYZ (*.xyz)
        	Registering: Protein Data Bank (*.pdb)
        	Registering: Mol2 (*.mol2)
        	Registering: Protein Data Bank (*.pdb1)
        	Registering: Protein Data Bank (*.pdb2)
        	Registering: Protein Data Bank (*.pdb3)
        Registering: SAMSON document importers (*.sam and *.samx)
        	Registering: SAMSON Documents (*.samx)
        	Registering: SAMSON Documents (*.sam)
        Registering: Universal Force Field
        	Registering: Universal Force Field
        	Registering: Universal Force Field
        	Registering: UFF Force Field Factory
        Registering: An element containing six state updaters
        	Registering: SESStateUpdaterPack
        	Registering: SESStateUpdaterPack
        	Registering: Partitioned Euler
        	Registering: SESStateUpdaterPack
        	Registering: Velocity Verlet
        	Registering: SESStateUpdaterPack
        	Registering: Adaptively restrained NVE
        	Registering: Steepest descent
        	Registering: SESStateUpdaterPack
        	Registering: SESStateUpdaterPack
        	Registering: Interactive modeling
        	Registering: Adaptive steepest descent
        Registering: SAMSON Base - Data Model - App
        	Registering: App
        Registering: SAMSON Base - Data Model - Color
        	Registering: Color scheme per chain ID
        	Registering: Constant color scheme
        	Registering: Color scheme per temperature factor
        	Registering: CPK color scheme
        	Registering: Color scheme per residue sequence number
        	Registering: Color scheme per residue type
        	Registering: Color scheme per partial charge
        	Registering: Color scheme per secondary structure type
        	Registering: Color scheme per occupancy
        	Registering: Color scheme per formal charge
        Registering: SAMSON Base - Data Model - Data Graph
        	Registering: Data graph node
        	Registering: Node group
        	Registering: Data graph node color scheme
        Registering: SAMSON Base - Data Model - Document
        	Registering: Label
        	Registering: Camera
        	Registering: Layer
        	Registering: Document
        Registering: SAMSON Base - Data Model - Structural Model
        	Registering: Molecule
        	Registering: Backbone
        	Registering: Atom
        	Registering: Segment
        	Registering: Bond
        	Registering: Side chain
        	Registering: Path
        	Registering: Chain
        	Registering: Structural model
        	Registering: Grid
        	Registering: Structural particle
        	Registering: Residue
        	Registering: Structural nodes
        	Registering: Conformation
        	Registering: Pseudo-atom
        	Registering: Structural group
        Registering: SAMSON Base - Data Model - Visual Model
        Registering: SAMSON Base - Data Model - Controller
        	Registering: Controller
        	Registering: Controller node
        Registering: SAMSON Base - GUI - DataGraph
        Registering: SAMSON Base - GUI - Document
        	Registering: The GUI of a camera
        	Registering: The GUI of a layer
        Registering: SAMSON Base - GUI - Editor
        	Registering: Editor
        Registering: SAMSON Base - GUI - Inspector
        	Registering: Inspector - SBQuantity::mass Factory
        	Registering: Inspector - SBQuantity::length Factory
        	Registering: Inspector - Bool Factory
        	Registering: Inspector - Node Factory
        	Registering: Inspector - SBBond::BondType Factory
        	Registering: Inspector - SBQuantity::dimensionless Factory
        	Registering: Inspector - int Factory
        	Registering: Inspector - SBNode::Type Factory
        	Registering: Inspector - double Factory
        	Registering: Inspector - SBResidue::ResidueType Factory
        	Registering: Inspector - std::string Factory
        	Registering: Inspector - float Factory
        	Registering: Inspector - SBQuantity::second Factory
        	Registering: Inspector - unsigned short Factory
        	Registering: Inspector - SBPosition3 Factory
        	Registering: Inspector - short Factory
        	Registering: Inspector - char Factory
        	Registering: Inspector - SBVector3 Factory
        	Registering: Inspector - SBQuantity::dimensionless Factory
        	Registering: Inspector - unsigned int Factory
        	Registering: Inspector - Atom Factory
        	Registering: Inspector - SBResidue::SecondaryStructureType Factory
        	Registering: Inspector - SBPath::AnimationType Factory
        	Registering: Inspector - SBElement::Type Factory
        	Registering: Inspector - SBQuantity::time Factory
        	Registering: Inspector - char Factory
        Registering: SAMSON Base - GUI - Structural model
        	Registering: The GUI of an atom
        	Registering: The GUI of a structural model
        	Registering: The GUI of a structural model conformation
        	Registering: The GUI of a bond
        	Registering: The GUI of a structural model conformation
        Registering: SAMSON Base - Facade - SAMSON
        	Registering: The SAMSON Facade
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        
        =============================================================================
        Allowed elements in database: 
        
              -----------------------------------------------------------------------
              -  "elementName" "Secondary structure on GPUs"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "06485695-DEE2-1383-A575-E5AABA05DCCD"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "SAMSON Visual Models"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "154ACCDA-8950-C6B2-7456-DAB6BA82AA5D"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "Periodic table"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "2305E415-C812-1C1A-CDBE-78896176B067"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "Basic importers"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "385FE362-ADFD-CE55-95C0-4E63560EFA29"
              -  "elementVersion" "0.7.7"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "Twister"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "8B38B2FD-DE8D-F24A-36E7-7AC624173F9F"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "Universal force field"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "8CBDC8B1-59E1-6459-D68F-B840275DD5E9"
              -  "elementVersion" "0.7.5"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "SAMSON Format Exporter"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "9DFF7162-FFBF-C149-C9D3-2E1DEBC40321"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "SAMSON Format importers"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "CE375B52-7D0B-7DF0-AA3E-EB0AD85BEBFE"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "SAMSON Editors"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "CEBACCDA-8950-C6B2-7456-D077BA82AA5D"
              -  "elementVersion" "0.7.3"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "Basic exporters"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "EC83FAEB-1A42-FF16-EEB2-CF021EF38EBF"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        
              -----------------------------------------------------------------------
              -  "elementName" "State Updater Pack"
              -  "elementDeveloperID" "C682B30F-0D21-4CDB-B968-B72E225DDC8F"
              -  "elementID" "F912F119-7CBB-B5BD-972A-0A02DFCF683D"
              -  "elementVersion" "0.7.0"
              -  "checksumDebug" 0
              -  "checksumRelease" 0
              -  "elementDescription" ""
              -  "elementOS" ""
              -  "samsonVersion" "0.7.0"
              -  "forceUpdate" false
              -----------------------------------------------------------------------
        =============================================================================
        
        QPixmap::scaled: Pixmap is a null pixmap
        libpng warning: iCCP: known incorrect sRGB profile
        libpng warning: iCCP: known incorrect sRGB profile
        "File"
        "File"
        "Edit"
        "Edit"
        "App"
        
        1 Reply Last reply Reply Quote 0
        • Ivan
          Ivan last edited by

          It warns about libpng version. I think, that can be the reason. Which version of libpng is required?

          1 Reply Last reply Reply Quote 0
          • DmitriyMarin
            DmitriyMarin last edited by DmitriyMarin

            Actually, you should not worry about the following libpng warning:

            libpng warning: iCCP: known incorrect sRGB profile
            

            The libpng warning might be caused by libpng provided with your Python installation. To check whether this causes the problem, you could try commenting the addition of a path to Python libraries in the SAMSON-Core.sh script:

            #export LD_LIBRARY_PATH=${PYTHON_LIBRARY_PATH}:${LD_LIBRARY_PATH}
            

            I do not think that it is due to libpng, rather it might be a problem of a driver and OpenGL layer provided by Bumblebee.

            Dmitriy,
            The SAMSON Team, https://s-c.io

            1 Reply Last reply Reply Quote 0
            • Ivan
              Ivan last edited by Ivan

              It is really strange, that even if I tried to run it with optirun or primusrun in about dialog it showing, that I still using Intel HD card.

              0_1551452795316_2019-03-01 22-05-53.png

              I think there is some hidden restart of application GUI inside some python stuff, so really it does not use Nvidia card at all.

              1 Reply Last reply Reply Quote 0
              • Ivan
                Ivan @DmitriyMarin last edited by

                @dmitriymarin

                Do you have the Nouveau driver blacklisted or uninstalled? Because it causes some issues on Nvidia Optimus GPUs.

                Yes.

                dia@lenovo:~$ cat /etc/modprobe.d/nvidia-blacklists-nouveau.conf
                # You need to run "update-initramfs -u" after editing this file.
                
                # see #580894
                blacklist nouveau
                
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                • DmitriyMarin
                  DmitriyMarin last edited by

                  Python is not used by SAMSON, Python is present in the launching script just to add a path to its libraries so that users could use the Python Scripting Element. So you can safely comment the Python-related block in the launching script if you are not using the Python Scripting Element.

                  The information you see in the About dialogue (or in Preferences > Installation > General) shows all the graphics cards, meaning that it can show both CPU and GPU. But in your case, the SAMSON installer could not find your Nvidia GPU.

                  Personally, I used SAMSON before on a laptop with Linux (Ubuntu) equipped with Nvidia GeForge GTX 670MX GPU (which has Optimus technology) but without Bumblebee/optirun installed. So the problem seems to be either in SAMSON not being able to properly detect GPU or lack of some drivers.

                  How did you install SAMSON? With optirun or without? Does it give you the same behavior in both cases?

                  Dmitriy,
                  The SAMSON Team, https://s-c.io

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                  • DmitriyMarin
                    DmitriyMarin last edited by DmitriyMarin

                    Have you tried to install SAMSON with primusrun and then launching SAMSON with it?

                    If there is a configuration file for optirun/primusrun which allows specifying which apps should use GPU you may try specifying GPU for SAMSON.

                    Is it possible for you to try with nvidia-prime? It should provide better OpenGL support compared to optirun since optirun has an additional layer VirtualGL which might be causing this issue.

                    Dmitriy,
                    The SAMSON Team, https://s-c.io

                    Ivan 1 Reply Last reply Reply Quote 0
                    • Ivan
                      Ivan @DmitriyMarin last edited by Ivan

                      @dmitriymarin said in SAMSON with hybrid graphics cards (Intel/Nvidia):

                      Have you tried to install SAMSON with primusrun and then launching SAMSON with it?

                      I tried, and that did not help.

                      If there is a configuration file for optirun/primusrun which allows specifying which apps should use GPU you may try specifying GPU for SAMSON.

                      There is no such a file :( It is controlled by the prefix in the command line when I calling the app.

                      Is it possible for you to try with nvidia-prime? It should provide better OpenGL support compared to optirun since optirun has an additional layer VirtualGL which might be causing this issue.

                      I have no such a command nvidia-prime... If I understand correct, primusrun have no such an extra layer.

                      DmitriyMarin 1 Reply Last reply Reply Quote 0
                      • DmitriyMarin
                        DmitriyMarin @Ivan last edited by DmitriyMarin

                        @ivan said in SAMSON with hybrid graphics cards (Intel/Nvidia):

                        I tried, and that did not help.

                        Apparently, SAMSON might be having a problem properly detecting your GPU during the installation, even with primusrun.

                        Nvidia PRIME does not go with Bumblebee/optirun/primusrun, it is an Nvidia technology and it also allows one to switch between CPU and Nvidia GPU without additional layers giving a direct OpenGL access, which is more preferable. It is done via GPU offloading. But it comes with a downside: for a switch between CPU and GPU to take an effect one needs to log out and log in back (OS needs to do some re-initializations).
                        0_1551542253508_nvidia-prime.png
                        You can check whether you have Nvidia PRIME or not in the Nvidia X Server Settings. Nvidia PRIME is either installed together with an nvidia proprietary driver or you can install it via (after installing nvidia proprietary drivers):

                        sudo apt install nvidia-prime 
                        

                        Note: To use Nvidia PRIME you might need to remove Bumblebee/optirun/primusrun.

                        Note: In case, if you are using Nvidia PRIME, SAMSON should be installed with an active Nvidia GPU and to use SAMSON it would be necessary to enable to Nvidia GPU.

                        Personally, on my laptop with Ubuntu 16.04 and equipped with Nvidia GeForce GTX 670MX I have the nvidia-384 driver installed with Nvidia PRIME. I had Bumblebee installed many years ago, but I could not make it work with CUDA.
                        0_1551542531017_samson-about-gpu.png

                        Dmitriy,
                        The SAMSON Team, https://s-c.io

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                        • Ivan
                          Ivan last edited by

                          I installed Linux Mint 19.1 and installed nvidia-driver-390. Now interface has no such troubles. Thank you for advices.

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                          • Ivan
                            Ivan last edited by

                            Should interface eat so much 96% CPU from one of cores ?

                            DmitriyMarin 1 Reply Last reply Reply Quote 0
                            • DmitriyMarin
                              DmitriyMarin @Ivan last edited by

                              @Ivan
                              Great! I am glad that you solved the issue! Apparently, it was a problem with drivers. Do you use primusrun/optirun or just nvidia GPU directly?

                              Dmitriy,
                              The SAMSON Team, https://s-c.io

                              Ivan 1 Reply Last reply Reply Quote 0
                              • DmitriyMarin
                                DmitriyMarin @Ivan last edited by

                                @ivan
                                Yes, sorry, it can consume quite a lot sometimes. For me, for example, just the interface consumes sometimes 30-50% of one CPU core. To decrease the CPU consumption, you can hide the Document view (Ctrl/Cmd+1) or the Inspector (Ctrl/Cmd+I) when you do not need them. There is an issue with them which causes such consumption. It will be fixed in the next version of SAMSON.

                                Dmitriy,
                                The SAMSON Team, https://s-c.io

                                Ivan 1 Reply Last reply Reply Quote 0
                                • Ivan
                                  Ivan @DmitriyMarin last edited by

                                  @dmitriymarin Now I am using Nvidia PRIME like you showed in screenshot above. I do not think, that it is driver issue, but it is how you utilize them. I am also developing some software with OpenGL, however by using lower version API (1.2). So it works both Intel and Nvidia cards. I think, that advanced functions like in OpenGL 3.2 should be used using procedure addresses like it is doing with SDL_GL_GetProcAddress.

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                                  • Ivan
                                    Ivan @DmitriyMarin last edited by Ivan

                                    @dmitriymarin said in SAMSON with hybrid graphics cards (Intel/Nvidia):

                                    @ivan
                                    Yes, sorry, it can consume quite a lot sometimes. For me, for example, just the interface consumes sometimes 30-50% of one CPU core. To decrease the CPU consumption, you can hide the Document view (Ctrl/Cmd+1) or the Inspector (Ctrl/Cmd+I) when you do not need them. There is an issue with them which causes such consumption. It will be fixed in the next version of SAMSON.

                                    Will wait :) SAMSON has very cute interface, however such cost of one core for that it is not acceptable!

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                                    • DmitriyMarin
                                      DmitriyMarin last edited by

                                      Dear @Ivan ,
                                      Thanks to issues raised on the forum, we have fixed the issue in SAMSON causing problems with the viewport when using Intel integrated graphics processor. This issue might have been causing the problem you have posted in this thread. The new installation of SAMSON should resolve the issue.

                                      Dmitriy,
                                      The SAMSON Team, https://s-c.io

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