This is not necessarilly a regression, as I have yet to know an experience in Ubuntu with the open sourced Radeon drivers without a fair amount of flicker. (There has been flicker since 10.10 when I first started using AMD graphics on my laptop and desktop). The bug that was filed said "fixed flicker using the radeon driver with Compiz" or something to that extent, but I do not know of the specifics of the package that carried the patch. (possibly a compiz patch or a Unity patch, I read a lot of changelogs and it has slipped my mind).
I tried searching for the updates that I installed on the 16th of Feburary, and I installed full updates to my compiz and my unity both on the same day, so it is most likely in the changelogs for one of those projects. In Arch linux I was running the 1.11 version of X.org, Mesa 7.11, and I was running the linux kernel 3.2.0 (or some variation of that version); as arch updates so readily it is hard to know exactly which version of the kernel it was, but all times I have ran arch with open sourced Radeon drivers it has been a flawless and seamless experience. Is there any way to get any of the Ubuntu devs to try out Arch on a system with Radeon graphics to see what they are doing and possibly merge any patches they have made into mainline Ubuntu? Yes I have tried installing fglrx, that is what I am currently running as to avoid the screen flicker. I do not see any flickering behavior with fglrx, but the desktop itself is noticably slower when dragging windows and interacting with the desktop. (On a side note I have noticed that Precise still is using an old version of fglrx from a couple months ago which does not contain a lot of the fixes that AMD released for Gnome-shell integration. Is this going to be changed at all? I would like to see a more up-to-date video driver for some of the fixes.) Also, when running the fglrx driver in the system settings>details it registers as a VESA driver, when it is clearly the fglrx driver that is activated....but that is a different issue ;-) I do believe that it could be a x.org/mesa/kernel driver issue, and I have seen similar flickering issues in an out-of-the-box install of Fedora 16, but in subsequent updates it seemed to have cleared up. And, like I have mentioned before, Arch linux has a absolutely fabulously working version of the FOSS Radeon stack. I would love to render any assistance that I can towards fixing this issue, but my knowledge of programing is slim at best. I am a work-in-progress when trying to learn more about patches and the bug fixing process, so I may or may not be able to help. I am mostly just reporting what I have seen with my various dabbles with other linux based operating systems, and how Ubuntu differs in my experience with them. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-ati in Ubuntu. https://bugs.launchpad.net/bugs/933289 Title: bad flickering with Radeon drivers in 12.04 Precise To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/933289/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
