T41 suspend to ram finally working

After an upgrade from kernel 2.6.17 to 2.6.19 I noticed that my Thinkpad T41 was no longer hot. A quick look through the kernel changelogs reveiled that the nasty ACPI bug has finally been fixed. My laptop now has all the properties of a Laptop again.

commit 994aad251acab32a5d40d4a9501dc3e736562b6dAuthor: Volker Braun
Date:   Sun Jul 30 03:04:18 2006 -0700
[PATCH] radeonfb sleep fixes

Many IBM Thinkpad T4* models and some R* and X* with radeon video cards draw

too much power when suspended to RAM, reducing drastically the battery
lifetime. The solution is to enable suspend-to-D2 on these machines. They

are whitelisted through their subsystem vendor/device ID. This fixes
http://bugzilla.kernel.org/show_bug.cgi?id=3022

This entry was posted in linux, technology. Bookmark the permalink.

One Response to T41 suspend to ram finally working

  1. Pingback: Sound and S3 (suspend to ram) « Simbiosis

Leave a Reply