Radeon/PowerPC: No video output after update 6.12.1 -> 6.12.99; 6.12.192

[Michel Dänzer]

On Tue, 2010-04-06 at 19:57 +0200, Albrecht Dreß wrote: 
> 
> Am 06.04.10 09:32 schrieb(en) Michel Dänzer:
> > At that point, was the X server process still alive? Was it hogging the CPU?
> 
> Running, but not hogging the cpu:
> 
> root at antares:~# ps auxwww | grep X
> root 7408 1.1 3.2 34952 25024 tty8 Ss+ 19:30 0:02 /usr/bin/X :0 -br
> -verbose -auth /var/run/gdm/auth-for-gdm-1bXWHA/database -nolisten tcp
> 
> I forgot to mention that the display doesn't come up again even if I
> re-set to fbdev in xorg.conf and kill this process.  I always have to
> reboot.  The keyboard is still active, and apparently I can also
> switch to a console (e.g. <ctrl><alt><f1>).

That means the X server is running, just not displaying as expected.
Others on the list can probably help you better track this down.


> > Please also provide the output of
> > 
> > dmesg|grep -e agp -e drm -e radeon
> > 
> > when logging in via ssh when the problem occurs.
> 
> root at antares:~# dmesg | grep -e agp -e drm -e radeon
> [    0.782066] radeonfb 0000:00:10.0: enabling device (0086 -> 0087)
> [    0.981537] radeonfb: Found Open Firmware ROM Image
> [    0.981575] radeonfb: Retrieved PLL infos from Open Firmware
> [    0.981594] radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=200.00 Mhz, System=270.00 MHz
> [    0.981617] radeonfb: PLL min 12000 max 35000
> [    1.893111] radeonfb: Monitor 1 type DFP found
> [    1.893125] radeonfb: EDID probed
> [    1.893137] radeonfb: Monitor 2 type no found
> [    1.956176] radeonfb (0000:00:10.0): ATI Radeon 5157 "QW"
> [    8.180299] Linux agpgart interface v0.103
> [    8.374441] agpgart-uninorth 0000:00:0b.0: Apple UniNorth 1.5 chipset
> [    8.387193] agpgart-uninorth 0000:00:0b.0: configuring for size idx: 8
> [    8.417827] agpgart-uninorth 0000:00:0b.0: AGP aperture is 32M @ 0x0
> [  632.818627] [drm] Initialized drm 1.1.0 20060810
> [  632.849889] radeon: Unknown parameter `modeset'
> 
> Apparently, the latter two lines were created when trying to launch
> the accelerated config (I booted first with fbdev).

The radeon kernel module doesn't know the modeset option, which prevents
it from loading. For good performance you should fix this either by
running a newer kernel (linux-image-2.6.32-4-powerpc or newer) or
preventing the option from being passed to the  module (probably comes
from /etc/modprobe.d/radeon-kms.conf or so).

But the display problem probably isn't directly related to this.


-- 
Earthling Michel Dänzer           |                http://www.vmware.com
Libre software enthusiast         |          Debian, X and DRI developer