You have been subscribed to a public bug: Hello. Yesterday I upgraded from Ubuntu Jaunty to Karmic, and now I'm experiencing the following problem:
After logging in to the system, the screen randomly flickers, and at a certain point, one of the two things happen: 1. The X screen gets scrambled and freezes. Only the mouse can sometimes move. Sometimes I can escape this situation by pressing CTRL-ALT-1, and then returning to the regular display with CTRL-ALT-7, which causes a small temporary improvement. In other times, even pressing CTRL-ALT-1 cannot get me out of this, and the computer is completely stuck. 2. X crashes, and the GDM login screen appears. The time it takes for the session to hang varies. It can be anything between 1 minute to 30 minutes and on rare times even longer. The time duration does NOT depend on whether I'm using Compiz or not, and whether sound is being played or not. However, I think that actions which cause the window manager to work harder (e.g. opening / moving windows) can make the problem appear sooner. The second problem is that video playback fails - the video is first played correctly and after a few seconds sound stops and the playback gradually slows down until it completely stops. It happens to me in SMplayer. I'm not sure whether I tried it with other players as well. This happens in many video formats. These two problems share the following characteristics: - They started right after upgrading from Jaunty to Karmic. - They happen both when I use the NVIDIA driver from the repository (185) or the driver I downloaded from the NVIDIA site (190). - They don't happen when I use the "nv" video driver, or when I start Ubuntu in "reduced graphics" mode (by uninstalling the NVIDIA driver). I am using the following software and hardware: HP Pavilion dv5 with Intel Core 2 Duo NVIDIA GeForce 9600M GT, propietry driver v190.53 / v185.something Ubuntu 9.10 Karmic Koala Other links that discuss what seems to be the same problem: http://ubuntuforums.org/showthread.php?t=1329698 (Karmic: Screen scramble and freezes) http://ohioloco.ubuntuforums.org/showthread.php?t=1309015 (Random freezing in 9.10 Karmic) http://www.econowics.com/linux/326/video-playback-freeze-every-few-seconds-minutes-on-ubuntu/ (Video Playback Freeze Every Few Seconds / Minutes on Ubuntu) Thanks, Tal ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: crash dv5 flicker freeze geforce hang karmic nvidia pavilion video xorg -- Karmic + NVIDIA cause screen flickering, X crashes and video playback problems https://bugs.launchpad.net/bugs/527149 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
