On 05.01.2016 04:08, Thomas Richter wrote: > Hi folks, > > I don't seem to be able to enable the DVI-I output of an old FX 5200 > behind a KVM switch. Autodetection works fine if the FX 5200 DVI output > is switched to the monitor, but when it is not, I have not found a way > to force-enable it. > > Here is what I tried: > > *) used the video=DVI-I-1:1280x1024-24@60e kernel parameter > (framebuffer still sits at 1024x768) > ...
Tested here, in "video=DVI-I-1:1280x1024-24@60e" directive problematic are: color depth (bpp) 24 -and- 'e' as "forced display enablement" causing display -switching off- at the exact moment: fb: switching to nouveaufb from VESA VGA Contrairement à ce que, these 3 examples have been successfully tested: 1. video=DVI-I-1:1280x1024 2. video=DVI-I-1:1280x1024@60 3. video=DVI-I-1:1280x1024-16@60 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # cat /proc/cmdline ... video=DVI-I-1:1280x1024 ... # fbset -i mode "1280x1024" geometry 1280 1024 1280 1024 32 timings 0 0 0 0 0 0 0 accel true rgba 8/16,8/8,8/0,0/0 endmode Frame buffer device information: Name : nouveaufb Address : 0xd0006000 Size : 5242880 Type : PACKED PIXELS Visual : TRUECOLOR XPanStep : 1 YPanStep : 1 YWrapStep : 0 LineLength : 5120 Accelerator : No # dmesg -t | egrep fb:\ 0x nouveau 0000:02:00.0: DRM: allocated 1280x1024 fb: 0x50000, bo ffff88007f5d2800 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # cat /proc/cmdline ... video=DVI-I-1:1280x1024@60 ... # fbset -i mode "1280x1024" geometry 1280 1024 1280 1024 32 timings 0 0 0 0 0 0 0 accel true rgba 8/16,8/8,8/0,0/0 endmode Frame buffer device information: Name : nouveaufb Address : 0xd0006000 Size : 5242880 Type : PACKED PIXELS Visual : TRUECOLOR XPanStep : 1 YPanStep : 1 YWrapStep : 0 LineLength : 5120 Accelerator : No ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ # cat /proc/cmdline ... video=DVI-I-1:1280x1024-16@60 ... # fbset -i mode "1280x1024" geometry 1280 1024 1280 1024 16 timings 0 0 0 0 0 0 0 accel true rgba 5/11,6/5,5/0,0/0 endmode Frame buffer device information: Name : nouveaufb Address : 0xd0006000 Size : 2621440 Type : PACKED PIXELS Visual : TRUECOLOR XPanStep : 1 YPanStep : 1 YWrapStep : 0 LineLength : 2560 Accelerator : No Ref. https://www.kernel.org/doc/Documentation/fb/modedb.txt p.s. Can you paste here the output of these two oneliners: $ cd /sys/class/drm ; ls -1d card0-* | sed s/card0-// | sort $ xrandr | grep connected | awk '{print $1}' | sort _______________________________________________ Nouveau mailing list Nouveau@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/nouveau