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[James <573334@xxxxxxxxxxxxxxxxxx>]

Hi

Can confirm this on Kubuntu Maverick (10.10) using KDE 4.5.1 - 4.5.3
packages from official repo.

Use case:
 I installed Nouveau drivers from ubuntu repo after switching from Nvidia binary (ubuntu package) due to CPU suckage and it worked very well until this sudden freeze. Only device working is the mouse. When I ssh in from my N900 X is consuming 99% CPU and the only way to rescue the system is to either issue a reboot via the SSH terminal or hard reset the notebook.
I tried switching to NV driver but it doesn't seem to work or support multiple monitors.

To try to eliminate the freezes I have turned off desktop effects in
KDE. Haven't seen a lockup yet but have only been running for a few
hours with effects turned off.

I get the same backtrace in Xorg.0.log as in the original report. Bug
#624409 and #563598 seem to be related to this one.


System
Intel 32bit Dell M1330 XPS, Nvidia card, 1x 1680x1050 external flat panel connected via HDMI, 1x 1280x800 notebook display.

$ lcpci -vnnn

01:00.0 VGA compatible controller [0300]: nVidia Corporation G86 [GeForce 8400M GS] [10de:0427] (rev a1) (prog-if 00 [VGA controller])
        Subsystem: Dell Device [1028:0209]
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at f5000000 (32-bit, non-prefetchable) [size=16M]
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f2000000 (64-bit, non-prefetchable) [size=32M]
        I/O ports at ef00 [size=128]
        [virtual] Expansion ROM at f4000000 [disabled] [size=128K]
        Capabilities: <access denied>
        Kernel driver in use: nouveau
        Kernel modules: nouveau, nvidiafb

$ xrandr -q
Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 8192 x 8192
LVDS-1 connected 1280x800+1680+0 (normal left inverted right x axis y axis) 287mm x 180mm
   1280x800       60.0*+
   1024x768       59.9  
   800x600        59.9  
   640x480        59.4  
   720x400        59.6  
   640x400        60.0  
   640x350        59.8  
VGA-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected 1680x1050+0+0 (normal left inverted right x axis y axis) 473mm x 296mm
   1680x1050      60.0*+
   1600x1000      60.0  
   1280x1024      75.0     60.0  
   1440x900       59.9  
   1280x960       60.0  
   1152x864       75.0  
   1280x720       50.0  
   1152x720       60.0  
   1024x768       75.1     60.0  
   832x624        74.6  
   800x600        75.0     60.3  
   720x576        50.0  
   720x480        59.9  
   640x480        75.0     60.0  
   720x400        70.1

-- 
EQ overflowing and backtrace from xorg
https://bugs.launchpad.net/bugs/573334
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