Created attachment 32929 [details] [review] xorg.conf I have got Thinkpad T400 + dock station and two 24" (1920x1200) monitors. One of monitors is connected to VGA, the second one is connected to DVI. I've built: - kernel 2.6.33-rc6 + drm-radeon-testing with enabled KMS; - lastest xf86-video-ati from git-master; - Mesa 7.7; - libdrm 2.4.17 with --enable-radeon-experimental-api. After loading module 'radeon', kernel switches on monitor which was connected to VGA, but screen is blank. Notebook panel still works and shows console. After starting of Xorg, xrandr reports that monitor connected VGA is working but it's still blank. DVI monitor works fine (I have to disable VGA monitor or notebook panel to get it work). I've tried to set different options with xrandr to get VGA monitor work, but unsuccessful. xrandr reports that everything is Ok, but screen is blank. Any ideas how to solve the issue? What additional information do you need to diagnose the problem.
Created attachment 32930 [details] [review] Xorg.0.log
Created attachment 32931 [details] [review] dmesg
Can you attach the output of xrandr --verbose?
Created attachment 32932 [details] xrandr --verbose
Any ideas? BTW, I was able to setup configuration I want(except rotation) with radeonhd and disabled KMS.
(In reply to comment #5) > Any ideas? > > BTW, I was able to setup configuration I want(except rotation) with radeonhd > and disabled KMS. > looks like VGA is off. Does: xrandr --output VGA-0 --auto enable it? or xrandr --output VGA-0 --mode 1920x1200 --crtc 0
(In reply to comment #6) > (In reply to comment #5) > > Any ideas? > > > > BTW, I was able to setup configuration I want(except rotation) with radeonhd > > and disabled KMS. > > > > looks like VGA is off. Does: > xrandr --output VGA-0 --auto > enable it? > or xrandr --output VGA-0 --mode 1920x1200 --crtc 0 > In both caes, it enables backlight, but screen is black.
does forcing a dpms cycle help? sleep 5; xset dpms force off
(In reply to comment #8) > does forcing a dpms cycle help? > sleep 5; xset dpms force off > No, it doen't.
I've gotten working VGA-0 when set default output device in BIOS to VGA-0. In this case, after KMS initialization I can see console on both VGA-0 and LVDS (console occupies only part of VGA-0 which is bigger than LVDS, rest of the screen is white). Unfortunately, this trick works only if I initially boot with connected VGA-0. BIOS fallbacks to boot with LVDS if it doesn't see VGA-0. Any ideas?
Does xf86-video-ati from git master (for UMS) or a newer drm (for KMS) help? You might try drm-radeon-testing. These patches might help for KMS: http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h=ff4feeadf7581d27704dedcecaaaaf0209e65487 http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git;a=commitdiff;h=383be5d1789d9a7a2e77dca1cb0aca89507d069e
Thanks! Updated DRM (I've tested drm-next) helps.
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