kt7
November 8th, 2009, 06:18 PM
System:
Fresh and updated Ubuntu 9.10 amd64 on Amilo laptop:
Linux 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
Previous version, 9.04, did not have this problem.
I have external monitor attached to laptop + usb keyboarda and mouse.
Problem description:
Mouse starts to freeze from time to time, things become slower, then apps start to freeze. Can still move from virtual screen to another, but can't do anything. Ctrl+Alt+Backspace don't work. Shutting down power is only way.
Solution:
kill gnome-power-manager.
UPDATE:
nope. gnome-power-manager made things only worse. 9.10 still freezes same way when I have lots of network traffic (scp or torrents). When looking movie, system goes to crawl, but survives.
UPDATE2
This seems to be bug 270798 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/270798).
setting kernel parameters "nolapic acpi=off" solved the problem. In file /etc/defalut/grub set GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nolapic acpi=off" then sudo update-grub.
Fresh and updated Ubuntu 9.10 amd64 on Amilo laptop:
Linux 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC 2009 x86_64 GNU/Linux
Previous version, 9.04, did not have this problem.
I have external monitor attached to laptop + usb keyboarda and mouse.
Problem description:
Mouse starts to freeze from time to time, things become slower, then apps start to freeze. Can still move from virtual screen to another, but can't do anything. Ctrl+Alt+Backspace don't work. Shutting down power is only way.
Solution:
kill gnome-power-manager.
UPDATE:
nope. gnome-power-manager made things only worse. 9.10 still freezes same way when I have lots of network traffic (scp or torrents). When looking movie, system goes to crawl, but survives.
UPDATE2
This seems to be bug 270798 (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/270798).
setting kernel parameters "nolapic acpi=off" solved the problem. In file /etc/defalut/grub set GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nolapic acpi=off" then sudo update-grub.