I ditched Beryl because it's a little too unstable for my liking at this time, especially with dual displays. Back to getting frequent hangs in X. I ran gdb and did a couple back traces:
(gdb) bt #0 0x0809c8d4 in DeletePassiveGrabFromList () #1 0x08092cc5 in ProcUngrabButton () #2 0x08142531 in ?? () #3 0x0858c858 in ?? () #4 0x0858c858 in ?? () #5 0xbfa96808 in ?? () #6 0x081c7fa8 in ?? () #7 0x00000000 in ?? () (gdb) cont (gdb) bt #0 0x0809c428 in GrabMatchesSecond () #1 0x0809c5cc in AddPassiveGrabToList () #2 0x08092f5d in ProcGrabButton () #3 0x08142531 in ?? () #4 0x0858c858 in ?? () #5 0x0858c858 in ?? () #6 0xbfa96808 in ?? () #7 0x081c7fa8 in ?? () #8 0x00000000 in ?? () (gdb) cont (gdb) bt #0 0x0809c33e in ?? () #1 0x0809c522 in GrabMatchesSecond () #2 0x0809c5cc in AddPassiveGrabToList () #3 0x08092f5d in ProcGrabButton () #4 0x08142531 in ?? () #5 0x0858c858 in ?? () #6 0x0858c858 in ?? () #7 0xbfa96808 in ?? () #8 0x081c7fa8 in ?? () #9 0x00000000 in ?? () I did this many times, and each trace showed roughly one of the two above stacks. This never happens when the system is in use. Occasionally, when I sit down at the system, the cpu is fluctuating in usage for no reason (I have a cpu monitor on my desktop so I notice this right away). For example, it will be constant 25%, 0%, 25%, 0%, etc. Once I start using the system, this behaviour usually goes away and X calms down and returns to normal with no noticeable usage. No freeze here. The unrecoverable hanging usually occurs after I lock the system. In KDE, I have the habit of locking it whenever I leave the system for an extended period of time (don't ask me why). At this point, I have to switch to a terminal and kill X. I want to make it clear that this is not always the case -- sometimes the lockup occurs without the session locked when I've left the computer alone for a while (usually many hours). The dmesg showed no signs of NVRM: Xid messages as suggested above when X is going crazy. When it is frozen and X is eating the cpu, I can see all the windows I had running fine, but interestingly, none of them have any window decorations -- they're all gone. The mouse moves fine but I can't click on anything or use the keyboard, except to switch terminals. Anything else I can try? I'm thinking about starting to look at ATI cards as this is awfully annoying. -- Xorg process freezes, uses 100% of CPU. Can be killed by remote terminal. https://bugs.launchpad.net/bugs/51991 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
