Ubuntu
xserver-xorg-video-intel package

  1. Bug #492782
  2. Comment #25

Comment 25 for bug 492782

Revision history for this message
Daniel Knittl-Frank (knittl) wrote : Re: Mouse cursor disappears after restarting screen (xrandr / resume)

this has been happening to me for about a week now running fully upgraded natty with nouveau driver. graphic card is 01:00.0 VGA compatible controller [0300]: nVidia Corporation G86M [Quadro FX 360M] [10de:042d] (rev a1)

after some time the mouse cursor will randomly disappear on my external monitor, with no errors in Xorg.0.log (but errors in kern.log)

other times the cursor is still visible, but if the cursor changes shape (textcursor, loading, links) it will be verry sluggy for a moment (pulseaudio also hangs while this) and trash kern.log with "no space while unhiding cursor" messages. when the symptom is a disappearing cursor only the "EvoCh" line is written to the log file, i.e.

    Feb 7 10:28:05 kbook kernel: [49943.295050] [drm] nouveau 0000:01:00.0: EvoCh 0 Mthd 0x0000 Data 0x00000400 (0x0002 0x01)
    Feb 7 10:33:01 kbook kernel: [50239.740629] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
    Feb 7 10:33:01 kbook kernel: [50239.871880] [drm] nouveau 0000:01:00.0: no space while unhiding cursor
    ...

starting the monitor resolution tool will completely freeze X, logging out will not restart X, killing X with ctrl-alt-backspace will hang the screen. the only thing to bring the mouse cursor back to a usable state is to restart the machine (either using shut down from the gnome panel, or after X has hung up using sysrq-reisub)

i'll be glad to provide further log files or system information. this bug is really annoying.