Thanks for the reply. The link solved some issues with the nvidia driver. But the original problem remains, I'm not able to connect to display :0.
[VGL] Shared memory segment ID for vglconfig: 5734445 [VGL] VirtualGL v2.5.1 64-bit (Build 20161001) [VGL] Opening connection to 3D X server 0 [VGL] ERROR: Could not open display 0. On the other hand if I start vnc and use "startx" in a terminal to start a new X server, I can open a 3d application with 2vglrun -d :1 application". wolfgang@WS-Mikro:~$ startx X.Org X Server 1.18.3 Release Date: 2016-04-04 X Protocol Version 11, Revision 0 Build Operating System: Linux 3.13.0-92-generic x86_64 Ubuntu Current Operating System: Linux WS-Mikro 4.4.0-38-generic #57-Ubuntu SMP Tue Sep 6 15:42:33 UTC 2016 x86_64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-38-generic root=UUID=0aed3666-5f62-49e1-b57c-7a64d6318dd1 ro splash quiet nomodeset Build Date: 22 July 2016 07:50:34AM xorg-server 2:1.18.3-1ubuntu2.3 (For technical support please see http://www.ubuntu.com/support) Current version of pixman: 0.33.6 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.1.log", Time: Wed Oct 5 09:24:17 2016 (==) Using system config directory "/usr/share/X11/xorg.conf.d" The XKEYBOARD keymap compiler (xkbcomp) reports: > Warning: Type "ONE_LEVEL" has 1 levels, but <RALT> has 2 symbols > Ignoring extra symbols Errors from xkbcomp are not fatal to the X server wolfgang@WS-Mikro:~$ vglrun -d :1 /opt/ovito-2.7.0-x86_64/bin/ovito QXcbConnection: Failed to initialize XRandr Qt: XKEYBOARD extension not present on the X server. So to me this seems to be more a problem of permissions and rights. For this I found that /etc/opt/VirtualGL/vgl_xauth_key is not present. Runnning vglgenkey results in wolfgang@WS-Mikro:~$ /opt/VirtualGL/bin/vglgenkey xauth: timeout in locking authority file /etc/opt/VirtualGL/vgl_xauth_key xauth: timeout in locking authority file /etc/opt/VirtualGL/vgl_xauth_key chmod: cannot access '/etc/opt/VirtualGL/vgl_xauth_key': No such file or directory Resp. wolfgang@WS-Mikro:~$ sudo /opt/VirtualGL/bin/vglgenkey xauth: file /etc/opt/VirtualGL/vgl_xauth_key does not exist xauth: (argv):1: couldn't query Security extension on display ":4" xauth: file /etc/opt/VirtualGL/vgl_xauth_key does not exist xauth: (argv):1: bad "add" command line chmod: cannot access '/etc/opt/VirtualGL/vgl_xauth_key': No such file or directory In /etc/gdm3/Init/Default there is a line with "xhost +local" but vglgenkey is not called. So the question I'm asking myself right now is where and when should vglgenkey be called? -----Ursprüngliche Nachricht----- Von: DRC [mailto:dcomman...@users.sourceforge.net] Gesendet: Freitag, 30. September 2016 18:46 An: virtualgl-users@lists.sourceforge.net Betreff: Re: [VirtualGL-Users] Ubuntu 16.04 + VNC + VirtualGL: No protocol specified /unable to open display :0 I've successfully used Ubuntu 16.04 with the distribution-supplied nVidia driver package and VirtualGL 2.5, so I know that that configuration works properly. It seems that the root of the problem is that your 3D X server (display :0) isn't starting, which has nothing to do with VirtualGL. I assume that you are unable to log into the machine locally? My best advice would be to try re-installing the nVidia driver package and rebooting. Also double-check that the nouveau driver isn't installed, as that can cause conflicts with the proprietary nVidia driver. It seems like you might be running into the same problem described here: https://devtalk.nvidia.com/default/topic/951741/linux/locked-out-of-xwindows -login-loop-after-driver-upgrade-ubuntu-16-04/, in which case you should try the troubleshooting advice from that thread. On 9/30/16 6:58 AM, Wolfgang Verestek wrote: > > > Dear VirtualGL users, > > I need some help with 3D visualization. I'm using a workstation for > visualization of some simulation data. For this we were using Ubuntu > 14.04 + VNC and VirtualGL for 3D applications (gnome, xfce4 as Desktop environment). > Everything was working, but after upgrading to 16.04 I just cannot get > VirtualGL running properly utilizing the Nvidia GPU (Titan Z). > > wolfgang@WS-Mikro:~$ lspci | grep VGA > 07:00.0 VGA compatible controller: ASPEED Technology, Inc. ASPEED > Graphics Family (rev 30) > 83:00.0 VGA compatible controller: NVIDIA Corporation GK110B [GeForce > GTX TITAN Z] (rev a1) > > wolfgang@WS-Mikro:~$ lspci | grep NVIDIA > 83:00.0 VGA compatible controller: NVIDIA Corporation GK110B [GeForce > GTX TITAN Z] (rev a1) > 83:00.1 Audio device: NVIDIA Corporation GK110 HDMI Audio (rev a1) > 84:00.0 3D controller: NVIDIA Corporation GK110B [GeForce GTX TITAN Z] > (rev > a1) > > wolfgang@WS-Mikro:~$ vglrun +v glxgears [VGL] Shared memory segment ID > for vglconfig: 950279 [VGL] VirtualGL v2.5 64-bit (Build 20160215) > [VGL] Opening connection to 3D X server :0 No protocol specified [VGL] > ERROR: Could not open display :0. > > > in /etc/log/Xorg.0.log i get some error messages, but to be honest i > have no idea how to resolve this issue... > wolfgang@WS-Mikro:~$ tail /var/log/Xorg.0.log > [ 251.081] (WW) Disabling Mouse0 > [ 251.081] (WW) Disabling Keyboard0 > [ 251.081] (EE) [drm] Failed to open DRM device for (null): -22 > [ 251.081] (EE) [drm] Failed to open DRM device for (null): -22 > [ 251.081] (EE) [drm] Failed to open DRM device for (null): -22 > [ 251.082] (EE) [drm] Failed to open DRM device for (null): -22 > [ 251.082] (EE) [drm] Failed to open DRM device for pci:0000:83:00.0: -22 > [ 251.082] (EE) [drm] Failed to open DRM device for pci:0000:84:00.0: -22 > [ 251.082] Number of created screens does not match number of detected > devices. > Configuration failed. > VNC-Screen: > wolfgang@WS-Mikro:~$ tail /var/log/Xorg.4.log > [ 10.046] xorg-server 2:1.15.1-0ubuntu2.6 (For technical support please > see http://www.ubuntu.com/support) > [ 10.046] Current version of pixman: 0.30.2 > [ 10.046] Before reporting problems, check http://wiki.x.org > to make sure that you have the latest version. > [ 10.046] Markers: (--) probed, (**) from config file, (==) default > setting, > (++) from command line, (!!) notice, (II) informational, > (WW) warning, (EE) error, (NI) not implemented, (??) unknown. > [ 10.046] (==) Log file: "/var/log/Xorg.4.log", Time: Mon Mar 2 10:46:31 > 2015 > [ 10.046] (==) Using config file: "/etc/X11/xorg.conf" > [ 10.046] (==) Using system config directory "/usr/share/X11/xorg.conf.d" > > > X server is running, also e.g. xclock works on the VNC screen. > wolfgang@WS-Mikro:~$ w > 16:02:51 up 30 min, 2 users, load average: 2,16, 2,35, 1,67 > USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT > dummy_us tty7 :0 15:32 30:42 8:57 0.09s > update-notifier > wolfgang pts/0 10.132.2.119 15:36 5:27 7.77s 0.23s -bash > > wolfgang@WS-Mikro:~$ nvidia-smi > Wed Sep 28 16:02:54 2016 > +------------------------------------------------------+ > | NVIDIA-SMI 361.42 Driver Version: 361.42 | > |-------------------------------+----------------------+-------------- > |-------------------------------+----------------------+------ > --+ > | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. > ECC | > | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute > M. | > |===============================+======================+============== > |====== > ==| > | 0 GeForce GTX TIT... Off | 0000:83:00.0 On | > N/A | > | 36% 50C P8 28W / 189W | 95MiB / 6143MiB | 0% > Default | > +-------------------------------+----------------------+-------------- > +-------------------------------+----------------------+------ > --+ > | 1 GeForce GTX TIT... Off | 0000:84:00.0 Off | > N/A | > | 33% 47C P8 33W / 189W | 15MiB / 6143MiB | 0% > Default | > +-------------------------------+----------------------+-------------- > +-------------------------------+----------------------+------ > --+ > > +--------------------------------------------------------------------- > +------ > --+ > | Processes: GPU > Memory | > | GPU PID Type Process name Usage > | > |===================================================================== > |====== > ==| > | 0 2968 G /usr/lib/xorg/Xorg > 33MiB | > | 0 3262 G /usr/bin/gnome-shell > 43MiB | > +--------------------------------------------------------------------- > +------ > --+ > > xorg.conf (which was working on 14.04 LTS): > Code: > > Section "DRI" > Mode 0666 > EndSection > > Section "ServerLayout" > Identifier "Layout0" > Screen 0 "Screen0" 0 0 > Screen 1 "Screen1" RightOf "Screen0" > InputDevice "Keyboard0" "CoreKeyboard" > InputDevice "Mouse0" "CorePointer" > Option "Xinerama" "0" > EndSection > > Section "Files" > EndSection > > Section "InputDevice" > > # generated from default > Identifier "Mouse0" > Driver "mouse" > Option "Protocol" "auto" > Option "Device" "/dev/psaux" > Option "Emulate3Buttons" "no" > Option "ZAxisMapping" "4 5" > EndSection > > Section "InputDevice" > > # generated from default > Identifier "Keyboard0" > Driver "kbd" > EndSection > > Section "Monitor" > Identifier "Monitor0" > VendorName "Unknown" > ModelName "BenQ G2200W" > HorizSync 31.0 - 83.0 > VertRefresh 55.0 - 76.0 > Option "DPMS" > EndSection > > Section "Monitor" > Identifier "Monitor1" > VendorName "Unknown" > ModelName "Dell DEL 1908FPBLK" > HorizSync 30.0 - 81.0 > VertRefresh 56.0 - 76.0 > EndSection > > Section "Device" > Identifier "Device0" > Driver "nvidia" > VendorName "NVIDIA Corporation" > BoardName "GeForce GTX TITAN Z" > BusID "PCI:83:0:0" > Screen 0 > EndSection > > Section "Device" > Identifier "Device1" > Driver "nvidia" > VendorName "NVIDIA Corporation" > BoardName "GeForce GTX TITAN Z" > BusID "PCI:84:0:0" > Screen 1 > EndSection > > Section "Screen" > Identifier "Screen0" > Device "Device0" > Monitor "Monitor0" > DefaultDepth 24 > Option "Stereo" "0" > Option "nvidiaXineramaInfoOrder" "DFP-0" > Option "metamodes" "DVI-I-1: nvidia-auto-select +0+0" > Option "SLI" "Off" > Option "MultiGPU" "On" > Option "BaseMosaic" "off" > Option "AllowGLXWithComposite" "true" > SubSection "Display" > Depth 24 > EndSubSection > EndSection > > Section "Screen" > Identifier "Screen1" > Device "Device1" > Monitor "Monitor1" > DefaultDepth 24 > Option "Stereo" "0" > Option "metamodes" "DVI-D-0: nvidia-auto-select +0+0" > Option "SLI" "Off" > Option "MultiGPU" "On" > Option "BaseMosaic" "off" > Option "AllowGLXWithComposite" "true" > SubSection "Display" > Depth 24 > EndSubSection > EndSection > > I hope somebody can give me a hint how to resolve that issue. If some > additional info is needed let me know. > > > Best regards > Wolfgang ---------------------------------------------------------------------------- -- _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ VirtualGL-Users mailing list VirtualGL-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/virtualgl-users
