Sigh. I have been meaning to devote more time to this. I'd be happy to have some help ... frankly if you want to reassign it to yourself (or if I need to do it) that would be fine. I built and ran with the version of the radeon module that shipped in Edgy and was able to reproduce the problem. So either this issue should be reproducible in Edgy or the issue is (perhaps) in the X server itself (which I thought was unlikely). Sadly my Edgy CD is corrupt and my bug-hunting process stalled out at the point where I needed to re-download and burn an Edgy ISO.
Here's what I grasp of the technical details - the Gnome resolution switcher applet queries X via the RandR extension to find out what modes are available. The radeon module, when building a list of modes available via RandR, first adds modes specified in xorg.conf, and then proceeds to add VESA standard modes to the list. It seems to be these VESA modes which cause the problem. My guess, given the visual symptoms, is that something with regard to the memory aperture is borked, but it's just a guess. Good luck, let me know if you make some headway or if I can be of some help. Matt Dan Munckton wrote: > Hi Matthew. You getting anywhere with this? Can I help out? > -- Corrupt screen when switching resolution https://bugs.launchpad.net/bugs/84158 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
