I also experience occasional key jams, when the system freezes during a key press, resulting in locking the repeat for 1-2 seconds. Looking for a solution to the keyjam problem i have found the following [[http://jannepikkarainen.fi/clocksourcejiffies-ja-ubuntu-910-hidastumiset-pois|here]]
Quote: --- If your Ubuntu 9.10 seems to get slower and slower over time, meaning everything from drawing windows to playing video gets laggy and only reboot helps, your computer might have issues with its HPET clock source and/or some peripherals interfere with it. This workaround might fix it for you: in /etc/default/grub change line GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" to be GRUB_CMDLINE_LINUX_DEFAULT="quiet splash clocksource=jiffies" Then enter sudo update-grub and reboot. --- Quite surprisingly, this has resolved the crackling sound problem (on ubuntu 10.04). More surprisingly still, this has ALSO resolved long bootup times with AHCI turned on in bios. However, i now experience something along the lines described in bug #571770 -- thread hd-audio0 consumes ~20% CPU at all times, but the sound plays clear. I'd appreciate if someone could synthesize the information on symptoms, the workaround and the now secondary problem with hd-audio0, and point in the direction of solution of the fundamental cause. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/882566 Title: Compal laptop: sound is breaking up To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/882566/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
