On Tue, Apr 2, 2013 at 10:04 AM, Pablo Oliveira <pablo@sifflez.org> wrote:
> Package: xserver-xorg-video-ati
> Version: 1:6.14.4-8
> Followup-For: Bug #529178
> [...]
>
> * If I run "xset dpms force off" the problems disappears completely.
To clarify, do you mean that after a dpms cycle both monitors work
correctly?
Yes, after turning off DPMS, both monitors work correctly.
I have been using the system all day without any flickering problems.
Does a newer kernel help? 3.2 is pretty old. There were
a number of display related fixes that went into 3.7 for example.
I will try with a new kernel and report back.
Also, I would add that, like the other people affected by this bug,
the problem triggers often when scrolling a window.
Pablo Oliveira.