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I am running a Python program where I'm trying to launch a Xephyr window to display the Isaac Gym simulation. However, when executing the line:

sim = self.gym.create_sim(compute_device, graphics_device, physics_engine, sim_params) 

I consistently encounter the error:

Xlib: extension "GLX" missing on display ":1"

System Configuration:

OS: Ubuntu 22.04
Server (no physical display; can connect one if necessary)
GPU: NVIDIA RTX 4070 Ti Remote Connection: SSH + X11 forwarding via GNOME

nvidia-smi Fri Mar 28 14:47:47 2025 +-----------------------------------------------------------------------------------------+ | NVIDIA-SMI 550.144.03 Driver Version: 550.144.03 CUDA Version: 12.4 | |-----------------------------------------+------------------------+----------------------+ | GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC | | Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. | | | | MIG M. | |=========================================+========================+======================| | 0 NVIDIA GeForce RTX 4070 Ti Off | 00000000:03:00.0 Off | N/A | | 0% 39C P8 4W / 285W | 22MiB / 12282MiB | 0% Default | | | | N/A | +-----------------------------------------+------------------------+----------------------+ +-----------------------------------------------------------------------------------------+ | Processes: | | GPU GI CI PID Type Process name GPU Memory | | ID ID Usage | |=========================================================================================| | 0 N/A N/A 32773 G /usr/lib/xorg/Xorg 9MiB | | 0 N/A N/A 32802 G /usr/bin/gnome-shell 4MiB | +-----------------------------------------------------------------------------------------+ 
uname -r 6.8.0-52-generic 
sudo lshw -C display *-display description: VGA compatible controller product: NVIDIA Corporation vendor: NVIDIA Corporation physical id: 0 bus info: pci@0000:03:00.0 logical name: /dev/fb0 version: a1 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress vga_controller bus_master cap_list rom fb configuration: depth=32 driver=nvidia latency=0 resolution=800,600 resources: irq:157 memory:f6000000-f6ffffff memory:e0000000-efffffff memory:f0000000-f1ffffff ioport:e000(size=128) memory:c0000-dffff 

cat /var/log/Xorg.0.log

[ 6130.862] (--) Log file renamed from "/var/log/Xorg.pid-37734.log" to "/var/log/Xorg.0.log" [ 6130.862] X.Org X Server 1.21.1.4 X Protocol Version 11, Revision 0 [ 6130.862] Current Operating System: Linux SEUVCL-7007 6.8.0-52-generic #53~22.04.1-Ubuntu SMP PREEMPT_DYNAMIC Wed Jan 15 19:18:46 UTC 2 x86_64 [ 6130.862] Kernel command line: BOOT_IMAGE=/boot/vmlinuz-6.8.0-52-generic root=UUID=84578564-1075-4040-86d4-984ad0402cdf ro quiet splash vt.handoff=7 [ 6130.862] xorg-server 2:21.1.4-2ubuntu1.7~22.04.11 (For technical support please see http://www.ubuntu.com/support) [ 6130.862] Current version of pixman: 0.40.0 [ 6130.862] Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. [ 6130.862] Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. [ 6130.862] (==) Log file: "/var/log/Xorg.0.log", Time: Sat Mar 22 12:59:27 2025 [ 6130.862] (==) Using system config directory "/usr/share/X11/xorg.conf.d" [ 6130.862] (==) No Layout section. Using the first Screen section. [ 6130.862] (==) No screen section available. Using defaults. [ 6130.862] (**) |-->Screen "Default Screen Section" (0) [ 6130.862] (**) | |-->Monitor "<default monitor>" [ 6130.863] (==) No monitor specified for screen "Default Screen Section". Using a default monitor configuration. [ 6130.863] (==) Automatically adding devices [ 6130.863] (==) Automatically enabling devices [ 6130.863] (==) Automatically adding GPU devices [ 6130.863] (==) Automatically binding GPU devices [ 6130.863] (==) Max clients allowed: 256, resource mask: 0x1fffff [ 6130.863] (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. [ 6130.863] Entry deleted from font path. [ 6130.863] (WW) The directory "/usr/share/fonts/X11/100dpi/" does not exist. [ 6130.863] Entry deleted from font path. [ 6130.863] (WW) The directory "/usr/share/fonts/X11/75dpi/" does not exist. [ 6130.863] Entry deleted from font path. [ 6130.863] (WW) The directory "/usr/share/fonts/X11/100dpi" does not exist. [ 6130.863] Entry deleted from font path. [ 6130.863] (WW) The directory "/usr/share/fonts/X11/75dpi" does not exist. [ 6130.863] Entry deleted from font path. [ 6130.863] (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/Type1, built-ins [ 6130.863] (==) ModulePath set to "/usr/lib/xorg/modules" [ 6130.863] (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. [ 6130.863] (II) Loader magic: 0x62662edfb020 [ 6130.863] (II) Module ABI versions: [ 6130.863] X.Org ANSI C Emulation: 0.4 [ 6130.863] X.Org Video Driver: 25.2 [ 6130.863] X.Org XInput driver : 24.4 [ 6130.863] X.Org Server Extension : 10.0 [ 6130.863] (++) using VT number 1 [ 6130.864] (II) systemd-logind: took control of session /org/freedesktop/login1/session/c5 [ 6130.866] (--) PCI:*(3@0:0:0) 10de:2782:1043:88dd rev 161, Mem @ 0xf6000000/16777216, 0xe0000000/268435456, 0xf0000000/33554432, I/O @ 0x0000e000/128, BIOS @ 0x????????/131072 [ 6130.866] (II) LoadModule: "glx" [ 6130.867] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so [ 6130.867] (II) Module glx: vendor="X.Org Foundation" [ 6130.867] compiled for 1.21.1.4, module version = 1.0.0 [ 6130.867] ABI class: X.Org Server Extension, version 10.0 [ 6130.984] (==) Matched nouveau as autoconfigured driver 0 [ 6130.984] (==) Matched modesetting as autoconfigured driver 1 [ 6130.984] (==) Matched fbdev as autoconfigured driver 2 [ 6130.984] (==) Matched vesa as autoconfigured driver 3 [ 6130.984] (==) Assigned the driver to the xf86ConfigLayout [ 6130.984] (II) LoadModule: "nouveau" [ 6130.984] (II) Loading /usr/lib/xorg/modules/drivers/nouveau_drv.so [ 6130.985] (II) Module nouveau: vendor="X.Org Foundation" [ 6130.985] compiled for 1.21.1.3, module version = 1.0.17 [ 6130.985] Module class: X.Org Video Driver [ 6130.985] ABI class: X.Org Video Driver, version 25.2 [ 6130.985] (II) LoadModule: "modesetting" [ 6130.985] (II) Loading /usr/lib/xorg/modules/drivers/modesetting_drv.so [ 6130.985] (II) Module modesetting: vendor="X.Org Foundation" [ 6130.985] compiled for 1.21.1.4, module version = 1.21.1 [ 6130.985] Module class: X.Org Video Driver [ 6130.985] ABI class: X.Org Video Driver, version 25.2 [ 6130.985] (II) LoadModule: "fbdev" [ 6130.985] (II) Loading /usr/lib/xorg/modules/drivers/fbdev_drv.so [ 6130.985] (II) Module fbdev: vendor="X.Org Foundation" [ 6130.985] compiled for 1.21.1.3, module version = 0.5.0 [ 6130.985] Module class: X.Org Video Driver [ 6130.985] ABI class: X.Org Video Driver, version 25.2 [ 6130.985] (II) LoadModule: "vesa" [ 6130.985] (II) Loading /usr/lib/xorg/modules/drivers/vesa_drv.so [ 6130.985] (II) Module vesa: vendor="X.Org Foundation" [ 6130.985] compiled for 1.21.1.3, module version = 2.5.0 [ 6130.985] Module class: X.Org Video Driver [ 6130.985] ABI class: X.Org Video Driver, version 25.2 [ 6130.985] (II) NOUVEAU driver Date: Sat Jan 23 12:24:42 2021 -0500 [ 6130.985] (II) NOUVEAU driver for NVIDIA chipset families : ...... [ 6130.986] GeForce GTX 2xx/3xx (GT2xx) [ 6130.986] GeForce GTX 4xx/5xx (GFxxx) [ 6130.986] GeForce GTX 6xx/7xx (GKxxx) [ 6130.986] GeForce GTX 9xx (GMxxx) [ 6130.986] GeForce GTX 10xx (GPxxx) [ 6130.986] (II) modesetting: Driver for Modesetting Kernel Drivers: kms [ 6130.986] (II) FBDEV: driver for framebuffer: fbdev [ 6130.986] (II) VESA: driver for VESA chipsets: vesa [ 6131.127] (EE) [drm] Failed to open DRM device for pci:0000:03:00.0: -19 [ 6131.127] (EE) open /dev/dri/card0: No such file or directory [ 6131.127] (WW) Falling back to old probe method for modesetting [ 6131.127] (EE) open /dev/dri/card0: No such file or directory [ 6131.127] (II) Loading sub module "fbdevhw" [ 6131.127] (II) LoadModule: "fbdevhw" [ 6131.127] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 6131.128] (II) Module fbdevhw: vendor="X.Org Foundation" [ 6131.128] compiled for 1.21.1.4, module version = 0.0.2 [ 6131.128] ABI class: X.Org Video Driver, version 25.2 [ 6131.128] (EE) Unable to find a valid framebuffer device [ 6131.128] (WW) Falling back to old probe method for fbdev [ 6131.128] (II) Loading sub module "fbdevhw" [ 6131.128] (II) LoadModule: "fbdevhw" [ 6131.129] (II) Loading /usr/lib/xorg/modules/libfbdevhw.so [ 6131.129] (II) Module fbdevhw: vendor="X.Org Foundation" [ 6131.129] compiled for 1.21.1.4, module version = 0.0.2 [ 6131.129] ABI class: X.Org Video Driver, version 25.2 [ 6131.129] (EE) open /dev/fb0: No such file or directory [ 6131.129] (EE) Screen 0 deleted because of no matching config section. [ 6131.129] (II) UnloadModule: "modesetting" [ 6131.129] (EE) Screen 0 deleted because of no matching config section. [ 6131.129] (II) UnloadModule: "fbdev" [ 6131.129] (II) UnloadSubModule: "fbdevhw" [ 6131.130] (II) Loading sub module "vbe" [ 6131.130] (II) LoadModule: "vbe" [ 6131.130] (II) Loading /usr/lib/xorg/modules/libint10.so [ 6131.130] (II) Module int10: vendor="X.Org Foundation" [ 6131.130] compiled for 1.21.1.4, module version = 1.0.0 [ 6131.130] ABI class: X.Org Video Driver, version 25.2 [ 6131.130] (II) Loading sub module "int10" [ 6131.130] (II) LoadModule: "int10" [ 6131.131] (II) Loading /usr/lib/xorg/modules/libint10.so [ 6131.131] (II) Module int10: vendor="X.Org Foundation" [ 6131.131] compiled for 1.21.1.4, module version = 1.0.0 [ 6131.131] ABI class: X.Org Video Driver, version 25.2 [ 6131.131] (II) VESA(0): initializing int10 ...... [ 6131.204] (II) VESA(0): Creating default Display subsection in Screen section "Default Screen Section" for depth/fbbpp 24/32 [ 6131.204] (==) VESA(0): Depth 24, (--) framebuffer bpp 32 [ 6131.204] (==) VESA(0): RGB weight 888 [ 6131.204] (==) VESA(0): Default visual is TrueColor [ 6131.204] (==) VESA(0): Using gamma correction (1.0, 1.0, 1.0) [ 6131.204] (II) Loading sub module "ddc" [ 6131.204] (II) LoadModule: "ddc" [ 6131.204] (II) Module "ddc" already built-in [ 6131.406] (II) VESA(0): VESA VBE DDC supported ...... [ 6132.022] (II) VESA(0): Total Memory: 256 64KB banks (16384kB) [ 6132.022] (II) VESA(0): <default monitor>: Using default hsync range of 31.50-48.00 kHz [ 6132.022] (II) VESA(0): <default monitor>: Using default vrefresh range of 50.00-70.00 Hz [ 6132.022] (II) VESA(0): <default monitor>: Using default maximum pixel clock of 65.00 MHz [ 6132.022] (WW) VESA(0): Unable to estimate virtual size [ 6132.022] (II) VESA(0): Not using built-in mode "800x600" (no mode of this name) [ 6132.022] (II) VESA(0): Not using built-in mode "640x480" (no mode of this name) [ 6132.022] (WW) VESA(0): No valid modes left. Trying less strict filter... [ 6132.022] (II) VESA(0): <default monitor>: Using hsync range of 31.50-48.00 kHz [ 6132.022] (II) VESA(0): <default monitor>: Using vrefresh range of 50.00-70.00 Hz [ 6132.022] (II) VESA(0): <default monitor>: Using maximum pixel clock of 65.00 MHz [ 6132.022] (WW) VESA(0): Unable to estimate virtual size [ 6132.022] (II) VESA(0): Virtual size is 800x600 (pitch 800) [ 6132.022] (**) VESA(0): *Built-in mode "800x600" [ 6132.022] (**) VESA(0): *Built-in mode "640x480" [ 6132.022] (==) VESA(0): DPI set to (96, 96) [ 6132.022] (**) VESA(0): Using "Shadow Framebuffer" [ 6132.022] (II) Loading sub module "shadow" [ 6132.022] (II) LoadModule: "shadow" [ 6132.022] (II) Loading /usr/lib/xorg/modules/libshadow.so [ 6132.022] (II) Module shadow: vendor="X.Org Foundation" [ 6132.022] compiled for 1.21.1.4, module version = 1.1.0 [ 6132.022] ABI class: X.Org ANSI C Emulation, version 0.4 [ 6132.022] (II) Loading sub module "fb" [ 6132.022] (II) LoadModule: "fb" [ 6132.022] (II) Module "fb" already built-in [ 6132.022] (II) Loading sub module "int10" [ 6132.022] (II) LoadModule: "int10" [ 6132.022] (II) Loading /usr/lib/xorg/modules/libint10.so [ 6132.022] (II) Module int10: vendor="X.Org Foundation" [ 6132.022] compiled for 1.21.1.4, module version = 1.0.0 [ 6132.022] ABI class: X.Org Video Driver, version 25.2 [ 6132.022] (II) VESA(0): initializing int10 [ 6132.022] (II) VESA(0): Primary V_BIOS segment is: 0xc000 [ 6132.046] (II) VESA(0): VESA BIOS detected [ 6132.046] (II) VESA(0): VESA VBE Version 3.0 [ 6132.046] (II) VESA(0): VESA VBE Total Mem: 16384 kB [ 6132.046] (II) VESA(0): VESA VBE OEM: NVIDIA [ 6132.046] (II) VESA(0): VESA VBE OEM Software Rev: 149.4 [ 6132.046] (II) VESA(0): VESA VBE OEM Vendor: NVIDIA Corporation [ 6132.046] (II) VESA(0): VESA VBE OEM Product: GPU Board [ 6132.046] (II) VESA(0): VESA VBE OEM Product Rev: Chip Rev [ 6132.046] (II) VESA(0): virtual address = 0x754d57702000, VGAbase = 0x754d5882e000 physical address = 0xe0000000, size = 16777216 [ 6132.049] (II) VESA(0): Setting up VESA Mode 0x115 (800x600) [ 6132.076] (==) VESA(0): Default visual is TrueColor [ 6132.076] (==) VESA(0): Backing store enabled [ 6132.076] (==) VESA(0): DPMS enabled [ 6132.076] (II) Initializing extension Generic Event Extension [ 6132.076] (II) Initializing extension SHAPE ... [ 6132.077] (II) Initializing extension XVideo [ 6132.077] (II) Initializing extension XVideo-MotionCompensation [ 6132.077] (II) Initializing extension SELinux [ 6132.077] (II) SELinux: Disabled on system [ 6132.077] (II) Initializing extension GLX [ 6132.077] (II) AIGLX: Screen 0 is not DRI2 capable [ 6132.097] (II) IGLX: Loaded and initialized swrast [ 6132.097] (II) GLX: Initialized DRISWRAST GL provider for screen 0 [ 6132.097] (II) Initializing extension XFree86-VidModeExtension [ 6132.097] (II) Initializing extension XFree86-DGA [ 6132.097] (II) Initializing extension XFree86-DRI [ 6132.097] (II) Initializing extension DRI2 [ 6132.121] (II) config/udev: Adding input device Power Button (/dev/input/event2) [ 6132.122] (**) Power Button: Applying InputClass "libinput keyboard catchall" [ 6132.122] (II) LoadModule: "libinput" [ 6132.122] (II) Loading /usr/lib/xorg/modules/input/libinput_drv.so [ 6132.123] (II) Module libinput: vendor="X.Org Foundation" [ 6132.123] compiled for 1.20.14, module version = 1.2.1 [ 6132.123] Module class: X.Org XInput Driver [ 6132.123] ABI class: X.Org XInput driver, version 24.1 [ 6132.123] (II) Using input driver 'libinput' for 'Power Button' [ 6132.123] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 23 paused 0 [ 6132.123] (**) Power Button: always reports core events [ 6132.123] (**) Option "Device" "/dev/input/event2" [ 6132.125] (II) event2 - Power Button: is tagged by udev as: Keyboard [ 6132.125] (II) event2 - Power Button: device is a keyboard [ 6132.125] (II) event2 - Power Button: device removed [ 6132.125] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXPWRBN:00/input/input2/event2" [ 6132.125] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 6) [ 6132.125] (**) Option "xkb_model" "pc105" [ 6132.125] (**) Option "xkb_layout" "cn" [ 6132.145] (II) event2 - Power Button: is tagged by udev as: Keyboard [ 6132.145] (II) event2 - Power Button: device is a keyboard [ 6132.146] (II) config/udev: Adding input device Power Button (/dev/input/event1) [ 6132.146] (**) Power Button: Applying InputClass "libinput keyboard catchall" [ 6132.146] (II) Using input driver 'libinput' for 'Power Button' [ 6132.146] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 26 paused 0 [ 6132.146] (**) Power Button: always reports core events [ 6132.147] (**) Option "Device" "/dev/input/event1" [ 6132.147] (II) event1 - Power Button: is tagged by udev as: Keyboard [ 6132.147] (II) event1 - Power Button: device is a keyboard [ 6132.147] (II) event1 - Power Button: device removed [ 6132.147] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0C:00/input/input1/event1" [ 6132.147] (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD, id 7) [ 6132.147] (**) Option "xkb_model" "pc105" [ 6132.147] (**) Option "xkb_layout" "cn" [ 6132.148] (II) event1 - Power Button: is tagged by udev as: Keyboard [ 6132.148] (II) event1 - Power Button: device is a keyboard [ 6132.149] (II) config/udev: Adding input device Sleep Button (/dev/input/event0) [ 6132.149] (**) Sleep Button: Applying InputClass "libinput keyboard catchall" [ 6132.149] (II) Using input driver 'libinput' for 'Sleep Button' [ 6132.149] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 27 paused 0 [ 6132.149] (**) Sleep Button: always reports core events [ 6132.149] (**) Option "Device" "/dev/input/event0" [ 6132.150] (II) event0 - Sleep Button: is tagged by udev as: Keyboard [ 6132.150] (II) event0 - Sleep Button: device is a keyboard [ 6132.150] (II) event0 - Sleep Button: device removed [ 6132.150] (**) Option "config_info" "udev:/sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0C0E:00/input/input0/event0" [ 6132.150] (II) XINPUT: Adding extended input device "Sleep Button" (type: KEYBOARD, id 8) [ 6132.150] (**) Option "xkb_model" "pc105" [ 6132.150] (**) Option "xkb_layout" "cn" [ 6132.151] (II) event0 - Sleep Button: is tagged by udev as: Keyboard [ 6132.151] (II) event0 - Sleep Button: device is a keyboard [ 6132.151] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event5) [ 6132.151] (II) No input driver specified, ignoring this device. [ 6132.151] (II) This device may have been added with another device file. [ 6132.151] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event6) [ 6132.151] (II) No input driver specified, ignoring this device. [ 6132.151] (II) This device may have been added with another device file. [ 6132.152] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event7) [ 6132.152] (II) No input driver specified, ignoring this device. [ 6132.152] (II) This device may have been added with another device file. [ 6132.152] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event8) [ 6132.152] (II) No input driver specified, ignoring this device. [ 6132.152] (II) This device may have been added with another device file. [ 6132.153] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event10) [ 6132.153] (II) No input driver specified, ignoring this device. [ 6132.153] (II) This device may have been added with another device file. [ 6132.153] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event11) [ 6132.153] (II) No input driver specified, ignoring this device. [ 6132.153] (II) This device may have been added with another device file. [ 6132.153] (II) config/udev: Adding input device HDA Intel PCH Line Out Front (/dev/input/event12) [ 6132.153] (II) No input driver specified, ignoring this device. [ 6132.153] (II) This device may have been added with another device file. [ 6132.154] (II) config/udev: Adding input device HDA Intel PCH Line Out Surround (/dev/input/event13) [ 6132.154] (II) No input driver specified, ignoring this device. [ 6132.154] (II) This device may have been added with another device file. [ 6132.154] (II) config/udev: Adding input device HDA Intel PCH Line Out CLFE (/dev/input/event14) [ 6132.154] (II) No input driver specified, ignoring this device. [ 6132.154] (II) This device may have been added with another device file. [ 6132.154] (II) config/udev: Adding input device HDA Intel PCH Line Out Side (/dev/input/event15) [ 6132.154] (II) No input driver specified, ignoring this device. [ 6132.154] (II) This device may have been added with another device file. [ 6132.155] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event16) [ 6132.155] (II) No input driver specified, ignoring this device. [ 6132.155] (II) This device may have been added with another device file. [ 6132.155] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event9) [ 6132.155] (II) No input driver specified, ignoring this device. [ 6132.155] (II) This device may have been added with another device file. [ 6410.027] (II) event2 - Power Button: device removed [ 6410.028] (II) event0 - Sleep Button: device removed [ 6410.028] (II) event1 - Power Button: device removed [ 6410.028] (II) systemd-logind: got pause for 13:66 [ 6410.028] (II) systemd-logind: got pause for 13:64 [ 6410.028] (II) systemd-logind: got pause for 13:65 [ 70275.131] (II) config/udev: removing device Power Button [ 70275.132] (II) UnloadModule: "libinput" [ 70275.132] (II) systemd-logind: releasing fd for 13:66 [ 70275.133] (II) config/udev: Adding input device Power Button (/dev/input/event2) [ 70275.133] (**) Power Button: Applying InputClass "libinput keyboard catchall" [ 70275.133] (II) Using input driver 'libinput' for 'Power Button' [ 70275.135] (II) systemd-logind: got fd for /dev/input/event2 13:66 fd 33 paused 1 [ 70275.135] (II) systemd-logind: releasing fd for 13:66 [ 70275.143] (II) config/udev: Adding input device HDA Intel PCH Front Mic (/dev/input/event9) [ 70275.143] (II) No input driver specified, ignoring this device. [ 70275.143] (II) This device may have been added with another device file. [ 70275.143] (II) config/udev: Adding input device HDA Intel PCH Line Out Front (/dev/input/event12) [ 70275.143] (II) No input driver specified, ignoring this device. [ 70275.143] (II) This device may have been added with another device file. [ 70275.144] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=7 (/dev/input/event6) [ 70275.145] (II) No input driver specified, ignoring this device. [ 70275.145] (II) This device may have been added with another device file. [ 70275.146] (II) config/udev: Adding input device HDA Intel PCH Line (/dev/input/event11) [ 70275.146] (II) No input driver specified, ignoring this device. [ 70275.146] (II) This device may have been added with another device file. [ 70275.146] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=8 (/dev/input/event7) [ 70275.146] (II) No input driver specified, ignoring this device. [ 70275.146] (II) This device may have been added with another device file. [ 70275.147] (II) config/udev: Adding input device HDA Intel PCH Rear Mic (/dev/input/event10) [ 70275.147] (II) No input driver specified, ignoring this device. [ 70275.147] (II) This device may have been added with another device file. [ 70275.147] (II) config/udev: Adding input device HDA Intel PCH Line Out Side (/dev/input/event15) [ 70275.147] (II) No input driver specified, ignoring this device. [ 70275.147] (II) This device may have been added with another device file. [ 70275.147] (II) config/udev: Adding input device HDA Intel PCH Line Out Surround (/dev/input/event13) [ 70275.148] (II) No input driver specified, ignoring this device. [ 70275.148] (II) This device may have been added with another device file. [ 70275.148] (II) config/udev: removing device Sleep Button [ 70275.148] (II) UnloadModule: "libinput" [ 70275.148] (II) systemd-logind: releasing fd for 13:64 [ 70275.159] (II) config/udev: Adding input device Sleep Button (/dev/input/event0) [ 70275.160] (**) Sleep Button: Applying InputClass "libinput keyboard catchall" [ 70275.160] (II) Using input driver 'libinput' for 'Sleep Button' [ 70275.164] (II) systemd-logind: got fd for /dev/input/event0 13:64 fd 33 paused 1 [ 70275.164] (II) systemd-logind: releasing fd for 13:64 [ 70275.171] (II) config/udev: removing device Power Button [ 70275.171] (II) UnloadModule: "libinput" [ 70275.171] (II) systemd-logind: releasing fd for 13:65 [ 70275.173] (II) config/udev: Adding input device Power Button (/dev/input/event1) [ 70275.173] (**) Power Button: Applying InputClass "libinput keyboard catchall" [ 70275.173] (II) Using input driver 'libinput' for 'Power Button' [ 70275.173] (II) systemd-logind: got fd for /dev/input/event1 13:65 fd 24 paused 1 [ 70275.173] (II) systemd-logind: releasing fd for 13:65 [ 70275.180] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=9 (/dev/input/event8) [ 70275.180] (II) No input driver specified, ignoring this device. [ 70275.180] (II) This device may have been added with another device file. [ 70275.180] (II) config/udev: Adding input device HDA Intel PCH Line Out CLFE (/dev/input/event14) [ 70275.180] (II) No input driver specified, ignoring this device. [ 70275.180] (II) This device may have been added with another device file. [ 70275.181] (II) config/udev: Adding input device HDA Intel PCH Front Headphone (/dev/input/event16) [ 70275.181] (II) No input driver specified, ignoring this device. [ 70275.181] (II) This device may have been added with another device file. [ 70275.181] (II) config/udev: Adding input device HDA NVidia HDMI/DP,pcm=3 (/dev/input/event5) [ 70275.181] (II) No input driver specified, ignoring this device. [ 70275.181] (II) This device may have been added with another device file. 
2
  • From the freedesktop.org Xephyr website: "no GLX support now". Apparently Xephyr doesn't support 3D acceleration. Also see: unix.stackexchange.com/questions/633034/… Commented Mar 29 at 11:42
  • thanks.I will try to switch to a replacement for xephyr. Commented Apr 1 at 6:20

1 Answer 1

0

If library are missing, try to install

sudo apt-get install mesa-common-dev libgl1-mesa-dev libglu1-mesa-dev 

If not try to export DISPLAY variable for launching your program over ssh:

$ ssh -X user@host "export DISPLAY=client_ip:10.0 myprogram" 

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