On my brand new ubuntu 8.04 install, the screen contents displayed by the radeon driver are horrible. It looks somewhat as if it has decided to render things in 4 bit color. Weirdly, the actual contents of the framebuffer appear normal. If I take a screenshot and transfer it to a system with a working display, all appears well. The (possibly) relevant packages on the system are: xserver-xorg-video-all 1:7.3+10ubuntu10 xserver-xorg-video-ati 1:6.8.0-1 This is a old radeon 7200 card, but it is not a hardware problem. The vesa driver renders things quite well (but, of course, 3D is not very speedy :-). http://home.att.net/~Tom.Horsley/ubuntu.png is a screen shot (showing the correctly rendered screen buffer while running with radeon driver). http://home.att.net/~Tom.Horsley/ubuntu2.png is a photograph I took of the actual rendering of the screen with the radeon driver. Not only are the colors wacko, but the text is extremely fuzzy (and not merely due to being a photograph). If I switch to the vesa driver, the screen looks like the 1st image above, so the card is clearly capable of working correctly. Some selected bits from log file: X.Org X Server 1.4.0.90 Release Date: 5 September 2007 X Protocol Version 11, Revision 0 Build Operating System: Linux Ubuntu (xorg-server 2:1.4.1~git20080131-1ubuntu9) Current Operating System: Linux grommit 2.6.24-16-generic #1 SMP Thu Apr 10 13:23:42 UTC 2008 i686 Build Date: 15 April 2008 05:26:17PM (--) PCI:*(1:0:0) ATI Technologies Inc Radeon R100 QD [Radeon 7200] rev 0, Mem @ 0xd0000000/27, 0xd9000000/19, I/O @ 0x9000/8
Created attachment 16401 [details] the full X log file Here is the complete log file from the most recent attempt to run the radeon driver. This is on a different monitor than the original screenshots were taken from, but the display is just as screwed up in 1920x1080 as it was as 1280x1024.
After looking at this for a while, I'm wondering if the driver is somehow enabling the color mapping hardware on the 7200 instead of a truecolor mode? That would certainly wind up with random data being used for the colormap and produce silly looking output like I see (just a random thought, I have no idea if it is really the problem).
does this option help? Option "DefaultTMDSPLL" "TRUE"
Nope, same ridiculous colors with or without DefaultTMDSPLL.
Tom Horsley, Ubuntu 8.04 Desktop went EOL as of May 12, 2011. For more on this, please see https://wiki.ubuntu.com/Releases . If this is reproducible in a supported release, it will help immensely if you filed a new report with Ubuntu by ensuring you have the package xdiagnose installed, and that you click the Yes button for attaching additional debugging information running the following from a terminal: ubuntu-bug xorg Also, please feel free to subscribe me to it. For more on why this is helpful, please see https://wiki.ubuntu.com/ReportingBugs.
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