Monitor (DVI-D) connected to radeon 9600 (DVI), sometimes monitor
goes to dpms (no signal) while drm trying to set up initial graphic video mode(at system boot).
May be the same situation can be triggered by changing video mode manually:
xrandr -s 1920x1200; xrandr -s 1440x900; xrandr -s 1920x1200; xrandr -s
1440x900; ... sometimes after xrandr -s 1920x1200, monitor goes to dpms,
the next 'xrandr -s 1440x900' is ok, there are no additional info in dmesg.
Created attachment 36790 [details]
Created attachment 36791 [details]
I'm not sure I'm not seeing same or similar using VGA out on rv380 PCIe. I boot runlevel 3, which is no X, then startx after login. Sometimes CRT goes to sleep mode on startup and no response to keyboard, so hard reset required. Sometimes X will start, but if I log out and try X again (sometimes after some X config change), it may lock up again as on first try. Because my CRT has no/broken DDC/EDID, I have to put xrandr newmode/addmode/output/fbmm commands in /etc/X11/xinit/xinitrc in order to escape from 1024x768@96DPI. openSUSE KMS kernel 2.6.34-12 and server/module 1.8.0/1.3.0.
Mass closure: This bug has been untouched for more than six years, and is not
obviously still valid. Please reopen this bug or file a new report if you continue to experience issues with current releases.