T41 suspend to ram finally working

Posted on December 24, 2006
Tags: linux, technology
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