On Fri, 21 Sep 2007 12:10:25 -0400 "Alex Deucher" <alexdeucher@gmail.com> wrote: > On 9/20/07, Ken Bloom <kbloom@gmail.com> wrote: > > Package: xserver-xorg-video-ati > > Version: 1:6.7.192-4 > > Severity: normal > > > > When I configure my laptop (built-in screen resolution 1280x768) to > > display on a projector with the following commands > > $ xrandr --output VGA-0 --mode 1280x1024 --output LVDS --off > > I find that the top 768 rows of pixels are darker than the bottom > > 256 rows of pixels, and the bottom 256 rows don't redraw correctly. > > > > If I try > > $ xrandr --output VGA-0 --mode 1024x768 --output LVDS --off > > then the display on the projector is dim, and different areas of the > > screen display with different levels of fadedness. It just occurred to me to mention that the projector in question is a rather complicated setup, because it's part of a multimedia classroom setup at IIT that is used to tape lectures and transmit them to remote viewing sites, and to post the lectures on the internet. I observed the same 1024x768 behavior on one of those setups with xrandr 1.1, X.org 7.2 and the fglrx driver about 2 weeks ago, so you can probably ignore the 1024x768 behavior, at least for now. It also wasn't reproducible on a more normal LCD setup. The 1280x1024 behavior, which is reproducible on other monitors is still relevant. --Ken -- Ken Bloom. PhD candidate. Linguistic Cognition Laboratory. Department of Computer Science. Illinois Institute of Technology. http://www.iit.edu/~kbloom1/
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