Andy,

  I would suspect the ATI drivers as the source of your instability. I have been having a lot of trouble with Kubuntu 10.10 on my T60 at work. While I haven't had full interface freezes, I get severe artifacting with an external monitor and have had random X crashes and application lockups.

  This solution cleared some things up for me, but it breaks setting the resolution via the preference pane:

http://www.niccolofavari.com/ubuntu-10.04-lucid-issues-with-external-monitor-and-ati-radeon-card

-Adam

On Sun, Jan 16, 2011 at 8:45 AM, Andy Stewart <andystewart@comcast.net> wrote:
On 01/16/2011 06:25 AM, Jason Couture wrote:
> Have you tried the nonfree nvidia drivers? Or perhaps the free ones if
> the nonfree are in use?

Hi Jason,

My graphics chip is the ATI Radeon RV280 (Radeon 9200 PRO), and it is
running the Free Software driver.  There is nothing proprietary in use
for the video.  I don't generally like to use the proprietary drivers,
but perhaps I could try it to see if it makes any difference.

Thanks,

Andy

--
Andy Stewart (KB1OIQ)
Founder:   Worcester Linux Users' Group
Founder:   Chelmsford Linux Meetup Group
President: PART of Westford, MA (WB1GOF)
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