On Mon, 2008-10-06 at 21:46 +0200, Gerhard Pircher wrote: > -------- Original-Nachricht -------- > > Datum: Mon, 06 Oct 2008 12:45:46 +0200 > > Von: "Michel Dänzer" <[EMAIL PROTECTED]> > > An: Gerhard Pircher <[EMAIL PROTECTED]> > > CC: [email protected] > > Betreff: Re: Lenny: Flickering display with Radeon 9250 under X11 > > > On Sun, 2008-10-05 at 16:22 +0200, Gerhard Pircher wrote: > > > > > > Recently I tried out Debian Lenny on my AmigaOne G4 with a Radeon 9250. > > > I have a LCD monitor connected to it through DVI-I. Unfortunately the X > > > server outputs a flickering display to which the monitor can't > > > synchronize and thus is simply black most of the time. The same hardware > > > configuration works fine under Debian Etch, thus I guess it is a problem > > > with > > > the X.org radeon driver. Did anybody else experienced this problem? > > > I also included the X.org.log file, but as far as I can tell it doesn't > > > show any > > > information related to this problem. > > > > It shows that the 1600x1200 mode has a pixel clock of 162 MHz, which is > > close the single link DVI limit of 165 MHz. There are a couple of > > reports of problems like this at http://bugs.freedesktop.org with > > various suggestions for workarounds; IIRC the most workable ones come > > down to using custom mode definitions, using either reduced blanking > > periods or a lower refresh rate. > Thanks for the info! I thought I had seen something like a bugreport for > this problem before, but couldn't find it again.
The infamous one is https://bugs.freedesktop.org/show_bug.cgi?id=2859 , but other examples are https://bugs.freedesktop.org/show_bug.cgi?id=13287 https://bugs.freedesktop.org/show_bug.cgi?id=14566 https://bugs.freedesktop.org/show_bug.cgi?id=16374 > > If you haven't yet, you might also want to try the driver upstream Git > > snapshot from experimental, there have been some tweaks to the clock > > programming code. > Okay, I'll take a look at the experimental branch. I guess there are no > experimental Debian packages yet or are they rebuild every day? Not sure what you mean, but FWIW I'm talking about the packages in Debian experimental. > Do you think this (possible) bugfix will make it into the Lenny release? We can worry about that if it's indeed fixed with newer versions of the driver. -- Earthling Michel Dänzer | http://tungstengraphics.com Libre software enthusiast | Debian, X and DRI developer -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
