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[Bug 888872] Re: Unity 3D desktop crashes in Oneiric using ATI Mobility Radeon X1600

 

I found and tried out a fix and made up my own version of it.

I noticed that Xorg.0.log.old gave the following.
Segmentation fault at address 0xb6211008
Caught signal 11 (Segmentation fault). Server aborting

Googling for "Caught signal 11 (Segmentation fault). Server aborting"
shows that Archlinux has had this issue too
(https://bbs.archlinux.org/viewtopic.php?id=119442).  Based on that, the
following work-around works for me.

Create /usr/share/X11/xorg.conf.d/10-modules.conf with the following
content.

Section  "Module"
             Disable "record" 
EndSection


Otherwise (my way)
Log out, 
then from a tty, kill lightdm, and 
issue sudo Xorg -configure or sudo X -configure. 

In the resulting xorg.conf, make sure to Disable "record"  rather than just comment the line out.
Copy it to /etc/X11/
Restart lightdm
Log into X (although it didn't take for me till I logged out and back into X yet again, so you may just want to reboot).

The result: no more crashes and X seems a little more responsive,
although this may be in my mind. There's an error pop up at the start of
the X session about the record function not working, but that is
expected. So I assume that may the the problematic software.


I also noticed that  Xorg.0.log and other logs give me the following error.
(EE) Failed to load module "fglrx" (module does not exist, 0)

I thought it might be unimportant if it weren't for a segmentation fault
linked to fglrx reported at
http://phoronix.com/forums/showthread.php?22972-Ubuntu-10.04-fglrx-seg-
fault.

 I'll write it up as a separate bug, anyway since Ubuntu borked my fglrx
install .


So how's that for incomplete? A workaround and potential sources of the
bug are ID'd.

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https://bugs.launchpad.net/bugs/888872

Title:
  Unity 3D desktop crashes in Oneiric using ATI Mobility Radeon X1600

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