Ubuntu 12.04: Compiz Segfault

[Colin Law]

On 29 April 2012 15:00, Lawrence Houston <ubuntu at greenfield.dyndns.org> wrote:
> Ubuntu Users:
>
>
> On Sun, 29 Apr 2012, Ric Moore wrote:
>
>> On 04/28/2012 11:06 PM, Lucio M Nicolosi wrote:
>>>
>>> On Sat, Apr 28, 2012 at 11:14 AM, Lawrence Houston
>>> <ubuntu at greenfield.dyndns.org>  wrote:
>>>>
>>>>
>>>> After upgrading from Ubuntu 11.10 to Ubuntu 12.04 the 3D Unity Interface
>>>> NO
>>>> longer works, therefore I am restricted to using the 2D Interface.
>>>> Syslog is
>>>> reporting Compiz Segfaults, with compiz.desktop respawning too
>>>> quickly...
>>>>  After the Coloured Background appears, that is wiped clean leaving a
>>>> "Blank" Screen...  Very occasionally a Compiz Error pops up, although
>>>> that
>>>> disappears before I have time to read or interact with it...
>>>>
>>>> Graphics Card is an NVIDIA GeForce 6200 and I had the same "Problem"
>>>> with
>>>> either of the currently available NVIDIA Drivers installed...
>>>>
>>>> Any IDEAs what is going "Wrong"???
>>
>>
>> Have you run computer janitor yet to clean up after the upgrade? Ric
>
>
> Just ran Computer Janitor, but I still can NOT run Unity in the 3D Mode.

Try, in a terminal running
unity --reset
and log out and in again.
This should reset compiz settings which may help.  If still no joy see
what happens if you login as a different user.  That may indicate
whether it is a system wide problem or a problem with the users
config.

Colin