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xrandr: Configure crtc 0 failed in virtualbox

  • 04-05-2016 1:26pm
    #1
    PrzemoF
    Registered Users, Registered Users 2 Posts: 1,931 ✭✭✭


    [SOLVED]
    [przemo@localhost ~]$ lsmod | grep box
vboxsf                 40960  1
vboxguest             266240  6 vboxsf
vboxvideo              16384  2
drm                   335872  4 vboxvideo
[przemo@localhost ~]$ xrandr --newmode "1000x700"  57.67  1000 1048 1152 1304  700 701 704 725
xrandr: Failed to get size of gamma for output default
[przemo@localhost ~]$ xrandr --addmode default 1000x700
xrandr: Failed to get size of gamma for output default
[przemo@localhost ~]$ xrandr --output default --mode 1000x700
xrandr: Failed to get size of gamma for output default
xrandr: Configure crtc 0 failed
[przemo@localhost ~]$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected primary 1024x768+0+0 0mm x 0mm
   1024x768      61.00* 
   800x600       61.00  
   640x480       60.00  
   1000x700      61.00

    I tried to use the internet wisdom, but I didn't get any ideas how to fix it. Host windows, guest fedora 23. Graphic card intel 4600. No settings in BIOS affecting the card. Virtualisation allowed in BIOS. The memory is probably not a problem because it fails on a resolution lower tan current.

    Any idea what's going on? Obviously the new resolution doesn't work.

    Edit: Guest add-ons in place, compiling fine.
    Edit1: Host resolution 1920x1080, but using VGA cable.
    Edit2: Guest add-ons reporting this:
    "Installing the Window System drivers
    Warning: unsupported pre-release version of X.Org Server installed. Not installing the X.Org driver"

    Edit3: Downgrading xorg with "dnf --showduplicates --allowerasing --releasever=22 downgrade xorg-x11-server-Xorg", rebuilding guest add-ons and restarting guest fixed the problem.


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