https://github.com/torvalds/linux
Revision c9354c85c1c7bac788ce57d3c17f2016c1c45b1d authored by Linus Torvalds on 02 November 2009, 17:29:55 UTC, committed by Linus Torvalds on 02 November 2009, 17:29:55 UTC
In commit c1c7af60892070e4b82ad63bbfb95ae745056de0 ("drm/i915: force
mode set at lid open time") the intel graphics driver was taught to
restore the LVDS mode on lid open.

That caused problems with interaction with the suspend/resume code,
which commonly runs at the same time (suspend is often caused by the lid
close event, while lid open is commonly a resume event), which was
worked around with in commit 06891e27a9b5dba5268bb80e41a283f51335afe7
("drm/i915: fix suspend/resume breakage in lid notifier").

However, in the meantime the lid event code had also grown a user event
notifier (commit 06324194eee97a51b5f172270df49ec39192d6cc: "drm/i915:
generate a KMS uevent at lid open/close time"), and now _that_ causes
problems with suspend/resume and some versions of Xorg reacting to those
uevents by setting the mode.

So this effectively reverts that commit 06324194ee, and makes the lid
open protection logic against suspend/resume more explicit.  This fixes
at least one laptop. See

	http://bugzilla.kernel.org/show_bug.cgi?id=14484

for more details.

Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Riccardo Magliocchetti <riccardo.magliocchetti@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent b6727b1
History
Tip revision: c9354c85c1c7bac788ce57d3c17f2016c1c45b1d authored by Linus Torvalds on 02 November 2009, 17:29:55 UTC
i915: fix intel graphics suspend breakage due to resume/lid event confusion
Tip revision: c9354c8
File Mode Size
Documentation
arch
block
crypto
drivers
firmware
fs
include
init
ipc
kernel
lib
mm
net
samples
scripts
security
sound
tools
usr
virt
.gitignore -rw-r--r-- 952 bytes
.mailmap -rw-r--r-- 3.9 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 91.8 KB
Kbuild -rw-r--r-- 2.4 KB
MAINTAINERS -rw-r--r-- 156.0 KB
Makefile -rw-r--r-- 53.9 KB
README -rw-r--r-- 17.0 KB
REPORTING-BUGS -rw-r--r-- 3.3 KB

README

back to top