I'm running this in undergraduate teaching labs containing cheap Dell boxes or iMacs, both of which are only a couple of years old. Off-hand I don't know what graphics cards the former have, but the latter should have nVidia cards. Maybe it's the drivers?

--
Dr J. Shaun Lott
AgResearch Senior Lecturer in Structural Biology
Laboratory of Structural Biology & Maurice Wilkins Centre
School of Biological Sciences
3a Symonds Street
University of Auckland
Private Bag 92019
Auckland 1142
New Zealand

t   : +64 9 3737599 x87074
f   : +64 9 3737416
http://shaunlott.blogspot.com

On 13 May 2009, at 02:36, Ed Pozharski wrote:

It is not a Ubuntu problem.  I have the same issue on my laptop, and
it's because it has Intel onboard graphics chip. With NVIDIA cards (at
least on all the desktops I've seen), coot runs fine when you enable
compiz (of course, I do use proprietary nvidia drivers).

On Tue, 2009-05-12 at 14:34 +1200, Shaun Lott wrote:
Hi Stephen

On the money - thanks!

Running GNOME as the desktop environment, doing exactly as you suggest fixes the problem. GNOME was having other stability issues also, which
caused some student frustration.

Alternatively, using Xfce as the desktop environment worked right off
the bat.

I also tried KDE, and if anything it was worse than GNOME, plus I
couldn't find where to disable Compiz.

Hope this helps anyone else who may have struggled with this issue.

cheers

Shaun

--
Dr J. Shaun Lott
AgResearch Senior Lecturer in Structural Biology
Laboratory of Structural Biology & Maurice Wilkins Centre
School of Biological Sciences
3a Symonds Street
University of Auckland
Private Bag 92019
Auckland 1142
New Zealand

t   : +64 9 3737599 x87074
f   : +64 9 3737416
http://shaunlott.blogspot.com

On 11 May 2009, at 17:51, Stephen Graham wrote:

Hi Shaun,

Have you tried turning off compiz?
(System > Preferences > Appearance > Visual Effects: Select 'None')

Cheers,

Stephen

On 11/05/2009, Shaun Lott <[email protected]> wrote:
Hi

Apologies if this problem has been dealt with elsewhere - I scanned
the
archives but couldn't see anything that looked similar.

I'm about to use Coot as part of a graduate teaching exercise.
Version 0.52
starts ok, and can load co-ords and maps, but whenever one clicks,
the
screen gets corrupted - see attached image. You can get a normal
view back
by rotating the molecule, but the whole user experience is a pretty
frustrating one, as it is pretty much impossible to click on
anything. The
fault seems to be hardware and Coot version independent - it
manifests in
0.5.2 and also using
0.6-pre-1-revision-1997-binary-Linux-i686-ubuntu-8.04.2, though less
dramatically in the latter - just a grey screen rather than the
corrupted
one. The same thing occurs when using a Dell or an iMac running
Ubuntu
(don't ask...)

So I'm guessing it's a(n) Ubuntu thing. The machine are running the
same
versrion of EdUbuntu 8.10, details as below.

Has anyone else seen this? Does anyone have a fix?

cheers

Shaun

cat /proc/version
Linux version 2.6.27-7-generic (bui...@palmer) (gcc version 4.3.2
(Ubuntu
4.3.2-1ubuntu11) ) #1 SMP Tue Nov 4 19:33:20 UTC 2008





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Dr Stephen Graham
Division of Structural Biology
Wellcome Trust Centre for Human Genetics
Roosevelt Drive
Oxford OX3 7BN
United Kingdom
Phone: +44 1865 287 549
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