ubuntu-x-swat team mailing list archive

[Paul K <kucher@xxxxxxxxx>]

Here is what I have found since I first reporting my problem. It turns
out this is a Catalyst Driver issue. On a different computer running
Ubuntu 10.04 and with a Radeon HD 4890 I was able to get solid graphics
performance with no screen tearing using the latest open source ati
driver. However, on the same machine with 10.04 and the Catalyst driver,
I am seeing screen tearing.

Just to recap my other machine has a Radeon HD 5870 and I am seeing
tearing with the Catalyst driver. Unfortunately, however, the open
source ati driver does not currently support the Evergreen series of
GPUs, so I am stuck with this pitiful driver. I am now hopeful that my
problems will be solved later this year when 5xxx series cards are
supported in the open source graphics stack.

I'm looking forward to Ubuntu 10.10 and beyond. I think this problem
won't be fixed until that time and any future AMD/ATI GPUs I would
advise staying away from until the open source driver can support them
out of the box. It is my understanding that this screen tearing issue is
rooted in something fundamental to the proprietary Catalyst driver and
is not going away any time soon.

-- 
[fglrx] vsync issues - screen tearing unrelated to compiz
https://bugs.launchpad.net/bugs/303697
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