Crashing X-server after last night f12 upgrade kde-unstable

[Gene Smith]

Gene Smith wrote, On 02/10/2010 08:36 PM:
> After starting system this evening I see no display. Can't get terminal using
> alt-F* keys either. Only way to get in was via ssh. Below is the crash part of
> Xorg.0.log.
>
> After upgrade last night it kept working OK but didn't reboot then. Actaully
> upgrade to 4.4 several days with several intervening boots, until today...
>
> Not sure if this is KDE problem or just another radeon driver problem?
>
> :
> :
> (II) RADEON(0): Acceleration enabled
> (==) RADEON(0): DPMS enabled
> (==) RADEON(0): Silken mouse enabled
> (II) RADEON(0): Set up textured video
> Output CRT1 disable success
> (II) RADEON(0): DIG0 transmitter: Coherent Mode enabled
> Output DIG0 transmitter setup success
> Blank CRTC 0 success
> Disable CRTC memreq 0 success
> Disable CRTC 0 success
> Blank CRTC 1 success
> Disable CRTC memreq 1 success
> Disable CRTC 1 success
>
> Backtrace:
> 0: /usr/bin/X (xorg_backtrace+0x28) [0x49ecc8]
> 1: /usr/bin/X (0x400000+0x61cf9) [0x461cf9]
> 2: /lib64/libpthread.so.0 (0x3b12a00000+0xf0f0) [0x3b12a0f0f0]
> 3: /usr/bin/X (xf86GetPrimaryOutput+0x35) [0x4819a5]
> 4: /usr/bin/X (xf86SetDesiredModes+0x8b) [0x483dbb]
> 5: /usr/lib64/xorg/modules/drivers/radeon_drv.so (0x7f462205f000+0x46f2e)
> [0x7f46220a5f2e]
> 6: /usr/bin/X (AddScreen+0x1d4) [0x4278b4]
> 7: /usr/bin/X (InitOutput+0x7b4) [0x470164]
> 8: /usr/bin/X (0x400000+0x21c5a) [0x421c5a]
> 9: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x3b11e1eb1d]
> 10: /usr/bin/X (0x400000+0x219a9) [0x4219a9]
> Segmentation fault at address 0xa0
>
> Fatal server error:
> Caught signal 11 (Segmentation fault). Server aborting

I had two problems:

1. X crashing caused by having "nomodeset" as a kernel parameter. It was 
being setup by default so no idea why I now have to disable/remove it 
from grub.conf. Not sure what it does. Main difference I see is that on 
boot, with it removed I see a "teardrop" or "meatball" or something that 
eventually evolves into the fedora "f" inside it. With nomodeset 
present, I see multiple overlapping bars at the bottom of the screen 
that grow from left to right during boot.

2. With "nomodeset" removed, X runs but could only run gnome. KDE was 
just the mouse cursor on a black screen. This is apparently fixed by the 
soprano update today as mentioned in a later thread and bugzilla report.

Hopefully, thing will keep running OK. Before this problem, was seeing 
lot of good stuff *working right* in KDE 4.4

-gene