XServer ERROR on Quantal

[Csányi Pál]

Hi,

I'm running Quantal:

$ lsb_release -a
LSB Version:
core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
Distributor ID: Ubuntu
Description:    Ubuntu 12.10
Release:        12.10
Codename:       quantal

I updated yesterday my system and today when I'm trying to start XWindow
with startx I get ERROR messages:

(EE)
(EE) Backtrace:
(EE) 0: X (xorg_backtrace+0x36) [0x7fdbac1a1ac6]
(EE) 1: X (0x7fdbabff9000+0x1ac8f9) [0x7fdbac1a58f9]
(EE) 2: /lib/x86_64-linux-gnu/libpthread.so.0 (0x7fdbab31f000+0xfcb0)
[0x7fdbab32ecb0]
(EE) 3: /lib/x86_64-linux-gnu/libc.so.6 (0x7fdba9f83000+0x1400c5)
[0x7fdbaa0c30c5]
(EE) 4: /usr/lib/xorg/modules/libexa.so (0x7fdba87bd000+0x584e)
[0x7fdba87c284e]
(EE) 5: /usr/lib/xorg/modules/libexa.so (0x7fdba87bd000+0x5d03)
[0x7fdba87c2d03]
(EE) 6: /usr/lib/xorg/modules/libexa.so (0x7fdba87bd000+0x851a)
[0x7fdba87c551a]
(EE) 7: /usr/lib/xorg/modules/libexa.so (0x7fdba87bd000+0x50e1)
[0x7fdba87c20e1]
(EE) 8: X (0x7fdbabff9000+0xe261f) [0x7fdbac0db61f]
(EE) 9: X (ChangeWindowAttributes+0x244) [0x7fdbac07c374]
(EE) 10: X (0x7fdbabff9000+0x4ff0d) [0x7fdbac048f0d]
(EE) 11: X (0x7fdbabff9000+0x55a51) [0x7fdbac04ea51]
(EE) 12: X (0x7fdbabff9000+0x4456a) [0x7fdbac03d56a]
(EE) 13: /lib/x86_64-linux-gnu/libc.so.6 (__libc_start_main+0xed)
[0x7fdba9fa476d]
(EE) 14: X (0x7fdbabff9000+0x448ad) [0x7fdbac03d8ad]
(EE)
(EE) Segmentation fault at address 0x8

Fatal server error:
Caught signal 11 (Segmentation fault). Server aborting

(EE)
Please consult the The X.Org Foundation support
         at http://wiki.x.org
 for help.
(EE) Please also check the log file at "/var/log/Xorg.0.log" for
additional information.
(EE)
Server terminated with error (1). Closing log file.
[ 1376.160007] [drm] nouveau 0000:01:00.0: Failed to idle channel 1.
[ 1379.160006] [drm] nouveau 0000:01:00.0: Failed to idle channel 2.
XIO:  fatal IO error 11 (Resource temporarily unavailable) on X server
":0.0"
xinit:       after 16 requests (16 known processed) with 0 events
remaining.
connection to X server lost

On the screen I can see garbage for a while andafter a few second I get
back the bash shell on Virtual Terminal Console.

How can I solve this problem?


-- 
Regards from Pal