Just an update on my trials. I've done a fresh install of karmic on my AMD athlon XP. The weird thing is that I NEVER had problems with karmic until lucid came out. Then both lucid and karmic started crashing in the same way. I thought that it might be related to an updated kernel or something, but the fresh install of karmic from the LiveCD is crashing too (no updates installed) - however, I did install the proprietry NVidia driver (because flash video is unviewable without it). This makes me suspect the latest video driver (which would presumably be the same in both karmic and lucid). HOWEVER, my other computer is an intel dual core with ATI graphics, and this has suffered from the same problems since the lucid release. My latest run-down is as follows.
Types of crash: 1. Frequent crashes when flash running (video freezes with sound repeating 1 sec loop) 2. Less frequent crashes without flash running - no obvious cause 3. In all cases the system is completely frozen - no mouse, no keyboard, no ssh, no sysreq, no log errors (my mouse and keyboard are PS/2) 4. Sometimes the caps lock and scroll lock lights flash 5. Sometimes the system goes to ubuntu flash screen, as if it is trying to shut down. Things tried: 1. Disabled compiz - possibly some improvement 2. Non proprietry drivers - still freezing but seemed less frequent 3. One system is wired network - so cant be wireless drivers 4. Playing dvds doesnt cause as frequent crashes as flash My conclusions: 1. It is hard to see how this could be graphics driver related because it happens with different cards 2. It cant be processor related - or related to multicore / governor speeds etc - because it happens on an old XP 3. Flash definately makes it worse but is not exclusively the problem 4. I dont think its related to newer kernels because it is happening on a fresh install of karmic which never used to crash -- amd64 lockups in ubuntu and kubuntu 10.04 https://bugs.launchpad.net/bugs/581947 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
