** Description changed: OS : Kubunutu 9.04 beta, fully update to date as of 4th of April, 2009. Hardware : Intel iCore7 + ATI Radeon HD 4670, fglrx drivers installed. How to recreate bug: Open SystemSettings, select Desktop icon, on Configure desktop effects tab click "Enable desktop effects" toggle button, then click on Apply. Symptoms: On enabling the desktop effects the screen immediately goes black, and then either flickers and starts working OK with desktop effects, or stay black for several to several dozen seconds with occasional flickers back of original desktop. Pressing escape earlier enough does sometimes recover the desktop without the effects, leave it too long and you can't get back to a usable desktop. In cases where a desktop becomes blacked out and usable I have to do an Ctrl Atl F4 then log in, manually disable the effect by editing ~/.kde/share/configs/kwinrc to disable desktop effects, and then shutdown the machine - I haven't yet been able to shutdown X and restart it despite trying sudo init 3, sudo init 5. This is obviously a bit advanced a workaround to getting a usable desktop back... If I don't reset kwinrc by hand and just reboot the desktop remains blacked out on boot and unusable. Problem is intermittent, sometimes when I log in it fails all the time, other times it succeeds in enable desktop effects. If it does succeed then the desktop starts working great, but on reboot typically the black + inaccessible desktop problems return. I've been testing on ATI hardware for the last three days and during this period the ability to enable desktop has always been problematic, but the percentage of times when things work I think has gone up. Failure rate is still well over 50% though. Prior to beginning testing on ATI hardware I tested Kubuntu 9.04 beta out on NVidia hardware and desktop effects worked great - Kubuntu/KDE 4.2 when it works is really beautiful and fund desktop to use :-) The problem looks very much like it's related to ATI drivers in some way. Robert. + + [lspci] + 00:00.0 Host bridge [0600]: Intel Corporation X58 I/O Hub to ESI Port [8086:3405] (rev 12) + Subsystem: ASUSTeK Computer Inc. Device [1043:836b] + 02:00.0 VGA compatible controller [0300]: ATI Technologies Inc RV730XT [Radeon HD 4670] [1002:9490] + Subsystem: PC Partner Limited Device [174b:e100]
-- Enabling desktop effects causes desktop black out, when using ATI fglrx drivers https://bugs.launchpad.net/bugs/355159 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
