@Erno Kuusela -- I can confirm that the change suggested by your
collegue does seem to fix the main resume issue without disabling the
second CPU. At least that is what my testing seems to show on a Dell
Studio 15 (1537).
I pulled the commit below back to the Intrepid kernel and I could
suspend and resume without the workaround script. I should note that I
have also confirmed that I get a hang always on the second resume with
events/1, though it should be noted I am getting some kind of hand
always on the second resume (with or without the patch):
commit 881ee9889c8b98671c5491e43666bf5d4f78a180
Author: Keith Packard <[EMAIL PROTECTED]>
Date: Sun Nov 2 23:08:44 2008 -0800
i915: Save/restore MCHBAR_RENDER_STANDBY on GM965/GM45
This register is set by the 2D driver to prevent lockups, and so it needs to
be preserved across suspend/resume too. This makes my X200s work.
Signed-off-by: Keith Packard <[EMAIL PROTECTED]>
Signed-off-by: Eric Anholt <[EMAIL PROTECTED]>
Signed-off-by: Dave Airlie <[EMAIL PROTECTED]>
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
Resume from suspend doesn't not work on the Mobile 4 Series chipsets
https://bugs.launchpad.net/bugs/276943
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