Re: Call for help: list of machines with working S3

Carl-Daniel Hailfinger
2005-02-14T21:36:23Z

Pavel Machek schrieb:
> Hi!
>
> Stefan provided me initial list of machines where S3 works (including
> video). If you have machine that is not on the list, please send me a
> diff. If you have eMachines... I'd like you to try playing with
> vbetool (it worked for me), and if it works for you supplying right
> model numbers.
>
> Pavel
>
>
> Video issues with S3 resume
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 2003-2005, Pavel Machek
>
> During S3 resume, hardware needs to be reinitialized. For most
> devices, this is easy, and kernel driver knows how to do
> it. Unfortunately there's one exception: video card. Those are usually
> initialized by BIOS, and kernel does not have enough information to
> boot video card. (Kernel usually does not even contain video card
> driver -- vesafb and vgacon are widely used).
>
> This is not problem for swsusp, because during swsusp resume, BIOS is
> run normally so video card is normally initialized. S3 has absolutely
> no change to work with SMP/HT. Be sure it to turn it off before
> testing (swsusp should work ok, OTOH).
>
> There are few types of systems where video works after S3 resume:
>
> (1) systems where video state is preserved over S3.
>
> (2) systems where it is possible to call video bios during S3
> resume. Unfortunately, it is not correct to call video BIOS at that
> point, but it happens to work on some machines. Use
> acpi_sleep=s3_bios.
>
> (3) systems that initialize video card into vga text mode and where BIOS
> works well enough to be able to set video mode. Use
> acpi_sleep=s3_mode on these.
>
> (4) on some systems s3_bios kicks video into text mode, and
> acpi_sleep=s3_bios,s3_mode is needed.
>
> (5) radeon systems, where X can soft-boot your video card. You'll need
> patched X, and plain text console (no vesafb or radeonfb), see
> http://www.doesi.gmxhome.de/linux/tm800s3/s3.html.

(5) machines should also work with (6), but not the other way round.

>
> (6) other radeon systems, where vbetool is enough to bring system back
> to life. Do vbetool vbestate save > /tmp/delme; echo 3 > /proc/acpi/sleep;
> vbetool post; vbetool vbestate restore < /tmp/delme; setfont
> <whatever>, and your video should work.

(6) has to be done from a text console! It should work for all radeon
systems, btw.

>
> Now, if you pass acpi_sleep=something, and it does not work with your
> bios, you'll get hard crash during resume. Be carefull. Also it is
> safest to do your experiments with plain old VGA console. vesafb and
> radeonfb (etc) drivers have tendency to crash the machine during resume.
>
> You may have system where none of above works. At that point you
> either invent another ugly hack that works, or write proper driver for
> your video card (good luck getting docs :-(). Maybe suspending from X
> (proper X, knowing your hardware, not XF68_FBcon) might have better
> chance of working.
>
> Table of known working systems:
>
> Model hack (or "how to do it")
> ------------------------------------------------------------------------------
> IBM TP R32 / Type 2658-MMG none (1)
> Athlon HP Omnibook XE3 none (1)
> Compaq Armada E500 - P3-700 none (1) (S1 also works OK)
> IBM t41p none (1)
> Athlon64 desktop prototype s3_bios (2)
> HP NC6000 s3_bios (2)
> Toshiba Satellite 4080XCDT s3_mode (3)
> Toshiba Satellite 4030CDT s3_mode (3)
> Dell D600, ATI RV250 vga=normal (**)

The Dell system above should also work fine with vbestate.

> Asus L2400D s3_mode (3)(***) (S1 also works OK)
> Toshiba Satellite P10-554 s3_bios,s3_mode (4)(****)
> Acer TM 800 vga=normal, X patches, see webpage (5)
> Athlon64 Arima W730a vbestate needed (6)
> eMachines athlon64 machines vbestate needed (6) (someone please get me model #s)

Samsung P35 vbestate needed (6)

>
> (**) Text console is "strange" after resume. Backlight is switched on again
> by the X server. X server is:
> | X Window System Version 6.8.1.904 (6.8.2 RC 4)
> | Release Date: 2 February 2005
> | X Protocol Version 11, Revision 0, Release 6.8.1.904
> | Build Operating System: SuSE Linux [ELF] SuSE
> as present in SUSE 9.3preview3.
>
> (***) To be tested with a newer kernel.
>
> (****) Not with SMP kernel, UP only.

Regards,
Carl-Daniel
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