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authorPavel Machek <pavel@ucw.cz>2005-09-03 15:56:56 -0700
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-05 00:06:14 -0700
commit7e958883bced7e435f5a76349e15684858d3477c (patch)
treed5b5a670c5917825ac08a67cb9efd0e64afe9799 /Documentation/power/video.txt
parent[PATCH] ISA DMA suspend for x86_64 (diff)
downloadlinux-dev-7e958883bced7e435f5a76349e15684858d3477c.tar.xz
linux-dev-7e958883bced7e435f5a76349e15684858d3477c.zip
[PATCH] suspend: update documentation
Update suspend documentation. Signed-off-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Documentation/power/video.txt')
-rw-r--r--Documentation/power/video.txt9
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/power/video.txt b/Documentation/power/video.txt
index 7a4a5036d123..1a44e8acb54c 100644
--- a/Documentation/power/video.txt
+++ b/Documentation/power/video.txt
@@ -46,6 +46,12 @@ There are a few types of systems where video works after S3 resume:
POSTing bios works. Ole Rohne has patch to do just that at
http://dev.gentoo.org/~marineam/patch-radeonfb-2.6.11-rc2-mm2.
+(8) on some systems, you can use the video_post utility mentioned here:
+ http://bugzilla.kernel.org/show_bug.cgi?id=3670. Do echo 3 > /sys/power/state
+ && /usr/sbin/video_post - which will initialize the display in console mode.
+ If you are in X, you can switch to a virtual terminal and back to X using
+ CTRL+ALT+F1 - CTRL+ALT+F7 to get the display working in graphical mode again.
+
Now, if you pass acpi_sleep=something, and it does not work with your
bios, you'll get a hard crash during resume. Be careful. Also it is
safest to do your experiments with plain old VGA console. The vesafb
@@ -64,7 +70,8 @@ Model hack (or "how to do it")
------------------------------------------------------------------------------
Acer Aspire 1406LC ole's late BIOS init (7), turn off DRI
Acer TM 242FX vbetool (6)
-Acer TM C300 vga=normal (only suspend on console, not in X), vbetool (6)
+Acer TM C110 video_post (8)
+Acer TM C300 vga=normal (only suspend on console, not in X), vbetool (6) or video_post (8)
Acer TM 4052LCi s3_bios (2)
Acer TM 636Lci s3_bios vga=normal (2)
Acer TM 650 (Radeon M7) vga=normal plus boot-radeon (5) gets text console back