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I'm trying to play some games on Steam (specifically Half-Life 2), but having Xinerama enabled with my dual monitor setup results in the infamous:

Could not find required OpenGL entry point 'glGetError'! Either your video card is unsupported, or your OpenGL driver needs to be updated.

I found a solution at the archlinux forums, but I'm having trouble implementing it into a shell script with LXDE.

#!/usr/sh
pkill -SIGTERM -f xsession
startx -- -layout Steam

It logs me out successfully with pkill but then I'm returned to a console prompt and startx is never executed. What am I missing here? 

user@home:~$ cat /etc/X11/xorg.conf.d/91-serverlayout-steam.conf
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings:  version 340.46  (pbuilder@zam904)  Fri Oct 17 21:29:34 UTC 2014

Section "ServerLayout"
    Identifier     "Steam"
    Screen      0  "Screen0" 0 0
    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"
    # HorizSync source: edid, VertRefresh source: edid
    Identifier     "Monitor0"
    VendorName     "Unknown"
    ModelName      "Ancor Communications Inc VS248"
    HorizSync       30.0 - 83.0
    VertRefresh     50.0 - 76.0
    Option         "DPMS"
EndSection

Section "Device"
    Identifier     "Device0"
    Driver         "nvidia"
    VendorName     "NVIDIA Corporation"
    BoardName      "GeForce GTX 460 v2"
    BusID          "PCI:6:0:0"
EndSection

Section "Screen"
    Identifier     "Screen0"
    Device         "Device0"
    Monitor        "Monitor0"
    DefaultDepth    24
    Option         "Stereo" "0"
    Option         "nvidiaXineramaInfoOrder" "DFP-0"
    Option         "metamodes" "nvidia-auto-select +0+0"
    Option         "SLI" "Off"
    Option         "MultiGPU" "Off"
    Option         "BaseMosaic" "off"
    SubSection     "Display"
        Depth       24
    EndSubSection
EndSection
Jeff Schaller
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randomdev
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1 Answers1

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Are you running that script from within LXDE?

If so, when you kill your session and LXDE shuts down, the script is terminated as well as its a child of the LXDE session.

James
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  • Yes. Is there any way to start a parent script from within the LXDE session? – randomdev Aug 18 '15 at 01:28
  • The "parent" script would be .xinitrc or .xession - which is called when starting X. Have a look at http://unix.stackexchange.com/questions/47359/what-is-xsession-for

    The simplest solution could just be to jump to a console, then execute that script.

     – James Aug 18 '15 at 01:38
  • The XineramaHowTo uses this command: startx /path/to/the/game -- :1 -config xorg.conf.single ... if I'm already at console then instead of having to create a CustomXSession isn't running startx pretty much the same thing? – randomdev Aug 18 '15 at 02:05
  • That'd work fine, the key point being that you're running it from a console outside of your LXDE session, with X not running. – James Aug 18 '15 at 02:08
  • Ah I see, so I guess there's no way to continue the script if it was initially called in the xsession that would be terminating. Thank you for clarifying! – randomdev Aug 18 '15 at 02:21