Public bug reported: Hi,
As a MacBook Pro owner, I use the appletouch driver for the stock trackpad. Until recently, this driver produced a lot (about 200) CPU wakeup/sec at any time (thanks to powertop for pointing that out). This behaviour has been fixed by a simple patch written by Matthew Garret and Soeren Sonnenburg in linux-2.6.23-rc1 ( see http://groups.google.fr/group/fa.linux.kernel/browse_thread/thread/d9d72416af5c6817/7b309dfbdbc5c3a0#7b309dfbdbc5c3a0 for the lkml discussion). Now appletouch create IRQ only when the trackpad is touched, allowing for a longer battery life. It would be great if the kernel in Ubuntu Gutsy would include this patch. I'll attach the patch below (taken directly by diffing the vanilla linux-2.6 git driver and the current ubuntu-gutsy git tree). I read https://wiki.ubuntu.com/KernelPatches. I hope you will accept this patch - It comes directly from upstream, - It has been tested by kernel developpers, and has been in the mactel-linux svn repository for some weeks (used by most of the Apple MacBook (Pro) owners, including myself), - No issues have been reported, - It affects only 1 file (drivers/input/mouse/appletouch.c) - It affects only the users of the appletouch driver (Apple MacBook (Pro) only), - Waiting gutsy+1 in about 10 month to have this patch without having to manually managing the kernel is not an option. Regards, ** Affects: linux-source-2.6.22 (Ubuntu) Importance: Undecided Status: New -- [PATCH] fix for appletouch driver generating unwanted CPU wakeups https://bugs.launchpad.net/bugs/129385 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
