ok, here's another update from me: i tried a bunch of other kernel boot options and finally found one that seems to do the trick for me: appending nmi_watchdog=0 to the boot parameters and blacklisting video as described here: https://bugs.launchpad.net/distros/ubuntu/+source/linux-source-2.6.17/+bug/74284 (adding "blacklist video" in /etc/modprobe.d/blacklist). now i can enjoy the power of my core 2 duo processor (meaning both processors!) and at the same time change the brightness of my display or close the lid if i want to ;-)
my grub entry: title Ubuntu, kernel 2.6.17-10-generic root (hd0,1) kernel /boot/vmlinuz-2.6.17-10-generic root=/dev/sda2 ro splash notsc nmi_watchdog=0 initrd /boot/initrd.img-2.6.17-10-generic quiet savedefault boot my system: Edgy Eft AMD64 Dell Inspiron 640m / E1405 Core 2 Duo T7200 Intel 945GM i'll keep you posted if i encounter problems with this configuration... -- Notebooks freezes after closing lid or pressing some FN key combination https://launchpad.net/bugs/65027 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
