fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / Documentation / power / video.txt

diff --git a/Documentation/power/video.txt b/Documentation/power/video.txt
index 912bed8..2b35849 100644 (file)
--- a/Documentation/power/video.txt
+++ b/Documentation/power/video.txt
@@ -1,7 +1,7 @@
 
                Video issues with S3 resume
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
                Video issues with S3 resume
                ~~~~~~~~~~~~~~~~~~~~~~~~~~~

-                 2003-2005, Pavel Machek
+                 2003-2006, Pavel Machek

 
 During S3 resume, hardware needs to be reinitialized. For most
 devices, this is easy, and kernel driver knows how to do
 
 During S3 resume, hardware needs to be reinitialized. For most
 devices, this is easy, and kernel driver knows how to do


@@ -15,6 +15,27 @@ run normally so video card is normally initialized. It should not be
 problem for S1 standby, because hardware should retain its state over
 that.
 
 problem for S1 standby, because hardware should retain its state over
 that.
 

+We either have to run video BIOS during early resume, or interpret it
+using vbetool later, or maybe nothing is necessary on particular
+system because video state is preserved. Unfortunately different
+methods work on different systems, and no known method suits all of
+them.
+
+Userland application called s2ram has been developed; it contains long
+whitelist of systems, and automatically selects working method for a
+given system. It can be downloaded from CVS at
+www.sf.net/projects/suspend . If you get a system that is not in the
+whitelist, please try to find a working solution, and submit whitelist
+entry so that work does not need to be repeated.
+
+Currently, VBE_SAVE method (6 below) works on most
+systems. Unfortunately, vbetool only runs after userland is resumed,
+so it makes debugging of early resume problems
+hard/impossible. Methods that do not rely on userland are preferable.
+
+Details
+~~~~~~~
+

 There are a few types of systems where video works after S3 resume:
 
 (1) systems where video state is preserved over S3.
 There are a few types of systems where video works after S3 resume:
 
 (1) systems where video state is preserved over S3.


@@ -69,6 +90,7 @@ Table of known working notebooks:
 Model                           hack (or "how to do it")
 ------------------------------------------------------------------------------
 Acer Aspire 1406LC             ole's late BIOS init (7), turn off DRI
 Model                           hack (or "how to do it")
 ------------------------------------------------------------------------------
 Acer Aspire 1406LC             ole's late BIOS init (7), turn off DRI

+Acer TM 230                    s3_bios (2)

 Acer TM 242FX                  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 242FX                  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)


@@ -94,6 +116,7 @@ Dell D610                    vga=normal and X (possibly vbestate (6) too, but not tested)
 Dell Inspiron 4000             ??? (*)
 Dell Inspiron 500m             ??? (*)
 Dell Inspiron 510m             ???
 Dell Inspiron 4000             ??? (*)
 Dell Inspiron 500m             ??? (*)
 Dell Inspiron 510m             ???

+Dell Inspiron 5150             vbetool needed (6)

 Dell Inspiron 600m             ??? (*)
 Dell Inspiron 8200             ??? (*)
 Dell Inspiron 8500             ??? (*)
 Dell Inspiron 600m             ??? (*)
 Dell Inspiron 8200             ??? (*)
 Dell Inspiron 8500             ??? (*)


@@ -104,6 +127,8 @@ HP NX7000                   ??? (*)
 HP Pavilion ZD7000             vbetool post needed, need open-source nv driver for X
 HP Omnibook XE3        athlon version  none (1)
 HP Omnibook XE3GC              none (1), video is S3 Savage/IX-MV
 HP Pavilion ZD7000             vbetool post needed, need open-source nv driver for X
 HP Omnibook XE3        athlon version  none (1)
 HP Omnibook XE3GC              none (1), video is S3 Savage/IX-MV

+HP Omnibook XE3L-GF            vbetool (6)
+HP Omnibook 5150               none (1), (S1 also works OK)

 IBM TP T20, model 2647-44G     none (1), video is S3 Inc. 86C270-294 Savage/IX-MV, vesafb gets "interesting" but X work.
 IBM TP A31 / Type 2652-M5G      s3_mode (3) [works ok with BIOS 1.04 2002-08-23, but not at all with BIOS 1.11 2004-11-05 :-(]
 IBM TP R32 / Type 2658-MMG      none (1)
 IBM TP T20, model 2647-44G     none (1), video is S3 Inc. 86C270-294 Savage/IX-MV, vesafb gets "interesting" but X work.
 IBM TP A31 / Type 2652-M5G      s3_mode (3) [works ok with BIOS 1.04 2002-08-23, but not at all with BIOS 1.11 2004-11-05 :-(]
 IBM TP R32 / Type 2658-MMG      none (1)


@@ -118,20 +143,27 @@ IBM TP T41p                       s3_bios (2), switch to X after resume
 IBM TP T42                     s3_bios (2)
 IBM ThinkPad T42p (2373-GTG)   s3_bios (2)
 IBM TP X20                     ??? (*)
 IBM TP T42                     s3_bios (2)
 IBM ThinkPad T42p (2373-GTG)   s3_bios (2)
 IBM TP X20                     ??? (*)

-IBM TP X30                     s3_bios (2)
+IBM TP X30                     s3_bios, s3_mode (4)

 IBM TP X31 / Type 2672-XXH      none (1), use radeontool (http://fdd.com/software/radeon/) to turn off backlight.
 IBM TP X31 / Type 2672-XXH      none (1), use radeontool (http://fdd.com/software/radeon/) to turn off backlight.

-IBM TP X32                     none (1), but backlight is on and video is trashed after long suspend
+IBM TP X32                     none (1), but backlight is on and video is trashed after long suspend. s3_bios,s3_mode (4) works too. Perhaps that gets better results?

 IBM Thinkpad X40 Type 2371-7JG  s3_bios,s3_mode (4)
 IBM Thinkpad X40 Type 2371-7JG  s3_bios,s3_mode (4)

+IBM TP 600e                    none(1), but a switch to console and back to X is needed

 Medion MD4220                  ??? (*)
 Samsung P35                    vbetool needed (6)
 Medion MD4220                  ??? (*)
 Samsung P35                    vbetool needed (6)

-Sharp PC-AR10 (ATI rage)       none (1)
+Sharp PC-AR10 (ATI rage)       none (1), backlight does not switch off

 Sony Vaio PCG-C1VRX/K          s3_bios (2)
 Sony Vaio PCG-F403             ??? (*)
 Sony Vaio PCG-C1VRX/K          s3_bios (2)
 Sony Vaio PCG-F403             ??? (*)

+Sony Vaio PCG-GRT995MP         none (1), works with 'nv' X driver
+Sony Vaio PCG-GR7/K            none (1), but needs radeonfb, use radeontool (http://fdd.com/software/radeon/) to turn off backlight.

 Sony Vaio PCG-N505SN           ??? (*)
 Sony Vaio vgn-s260             X or boot-radeon can init it (5)
 Sony Vaio PCG-N505SN           ??? (*)
 Sony Vaio vgn-s260             X or boot-radeon can init it (5)

+Sony Vaio vgn-S580BH           vga=normal, but suspend from X. Console will be blank unless you return to X.
+Sony Vaio vgn-FS115B           s3_bios (2),s3_mode (4)

 Toshiba Libretto L5            none (1)
 Toshiba Libretto L5            none (1)

-Toshiba Satellite 4030CDT      s3_mode (3)
-Toshiba Satellite 4080XCDT      s3_mode (3)
+Toshiba Libretto 100CT/110CT    vbetool (6)
+Toshiba Portege 3020CT         s3_mode (3)
+Toshiba Satellite 4030CDT      s3_mode (3) (S1 also works OK)
+Toshiba Satellite 4080XCDT      s3_mode (3) (S1 also works OK)

 Toshiba Satellite 4090XCDT      ??? (*)
 Toshiba Satellite P10-554       s3_bios,s3_mode (4)(****)
 Toshiba M30                     (2) xor X with nvidia driver using internal AGP
 Toshiba Satellite 4090XCDT      ??? (*)
 Toshiba Satellite P10-554       s3_bios,s3_mode (4)(****)
 Toshiba M30                     (2) xor X with nvidia driver using internal AGP


@@ -151,39 +183,3 @@ Asus A7V8X     nVidia RIVA TNT2 model 64     s3_bios,s3_mode (4)
 (***) To be tested with a newer kernel.
 
 (****) Not with SMP kernel, UP only.
 (***) To be tested with a newer kernel.
 
 (****) Not with SMP kernel, UP only.

-
-VBEtool details
-~~~~~~~~~~~~~~~
-(with thanks to Carl-Daniel Hailfinger)
-
-First, boot into X and run the following script ONCE:
-#!/bin/bash
-statedir=/root/s3/state
-mkdir -p $statedir
-chvt 2
-sleep 1
-vbetool vbestate save >$statedir/vbe
-
-
-To suspend and resume properly, call the following script as root:
-#!/bin/bash
-statedir=/root/s3/state
-curcons=`fgconsole`
-fuser /dev/tty$curcons 2>/dev/null|xargs ps -o comm= -p|grep -q X && chvt 2
-cat /dev/vcsa >$statedir/vcsa
-sync
-echo 3 >/proc/acpi/sleep
-sync
-vbetool post
-vbetool vbestate restore <$statedir/vbe
-cat $statedir/vcsa >/dev/vcsa
-rckbd restart
-chvt $[curcons%6+1]
-chvt $curcons
-
-
-Unless you change your graphics card or other hardware configuration,
-the state once saved will be OK for every resume afterwards.
-NOTE: The "rckbd restart" command may be different for your
-distribution. Simply replace it with the command you would use to
-set the fonts on screen.