[Bug 15175] radeon rs690 issues with 1920x1200 DVI (blanking)

[bugzilla-daemon at freedesktop.org]

http://bugs.freedesktop.org/show_bug.cgi?id=15175





--- Comment #19 from Bryce Harrington <bryce at canonical.com>  2009-02-20 19:22:52 PST ---
I have also been seeing an infrequent blanking on my pair of BENQ LCD 1920x1200
panels, pretty much since I originally got them.  I've seen it on 2 different
ATI cards (one a 6xx, another 5xx), from the 6.8 driver (maybe earlier) and
still see it on 6.11.0.

I hadn't reported it before because I assumed it was a hardware issue, but
after reading several bug reports about this including this one and a couple in
Ubuntu's launchpad tracker, I think it may be something with the xserver or
driver.

One thing I noticed is it seems to only occur on DVI.  Originally I ran it on a
dual DVI/VGA card, and I saw the blanking only on the screen connected to DVI. 
I then moved to a different DVI/DVI card, and now see the problem on both
monitors, although not at the same time.


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