[SUSPEND] Screen slides down after STR / neomagic

[SUSPEND] Screen slides down after STR / neomagic

[Richard Mittendorfer]

Hello,

Toshiba Libretto; Every time I suspend to RAM an come back to Console or
later exit Xorg (it's ok within X), the screen is somewhat displaced
downward:

   physical screen:                video output:
  -----------------------  -  -  -  -  -  -  -  -  -  -  
  |                     |         -----------------------
  |                     |         |$                    |
  |                     |         |                     |
  |                     |         |                     |
  -----------------------  -   -  | -   -   -   -   -  -|
                                  ----------------------- snipped

First noticed this with IIRC kernel 2.6.12, quite a while ago, and now
want to do something about it. I don't use (it doesn't occur with)
the (neomagic) framebuffer videodriver. Bootoption is vga=5, but
choosing another doesn't fix it.

I also recognize previous versions of XFree and IIRC pre 6.9 Xorg
thinking about screen geometry being 800x600, while in fact it's
800x480. These 60/120 pixels(?) are about the amount of space (if you
think of centering output to screen vertically) the display is
misplaced. However, it also happens if I don't startup X at all.

I also saw this: If I suspend, there are some lines printed about the
suspend process and if they hit bottom line and start scrolling (after
_a lot_ of suspends) screen layout seems to get fixed. sometimes? hmm.

What can I do about it? Add a few lines printk's into the suspend code?
;-)

http://www.mittendorfer.com/rm/temp/config.txt
http://www.mittendorfer.com/rm/temp/dmesg.txt

0000:00:04.0 VGA compatible controller: Neomagic Corporation NM2160
[MagicGraph 128XD] (rev 01)

Thanks for some input,
sl ritch

Re: [SUSPEND] Screen slides down after STR / neomagic

[Pavel Machek]

On Po 06-03-06 10:09:05, Richard Mittendorfer wrote:
> Hello,
> 
> Toshiba Libretto; Every time I suspend to RAM an come back to Console or
> later exit Xorg (it's ok within X), the screen is somewhat displaced
> downward:
> 
>    physical screen:                video output:
>   -----------------------  -  -  -  -  -  -  -  -  -  -  
>   |                     |         -----------------------
>   |                     |         |$                    |
>   |                     |         |                     |
>   |                     |         |                     |
>   -----------------------  -   -  | -   -   -   -   -  -|
>                                   ----------------------- snipped
> 
> First noticed this with IIRC kernel 2.6.12, quite a while ago, and now
> want to do something about it. I don't use (it doesn't occur with)
> the (neomagic) framebuffer videodriver. Bootoption is vga=5, but
> choosing another doesn't fix it.

Did you read Doc*/power/video.txt?
								Pavel
-- 
Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...

Re: [SUSPEND] Screen slides down after STR / neomagic

[Richard Mittendorfer]

Also sprach Pavel Machek <pavel@ucw.cz> (Tue, 7 Mar 2006 22:43:37
+0100):
> On Po 06-03-06 10:09:05, Richard Mittendorfer wrote:
> > Hello,
> > 
> > Toshiba Libretto; Every time I suspend to RAM an come back to Console or
> > later exit Xorg (it's ok within X), the screen is somewhat displaced
> > downward:
> 
> Did you read Doc*/power/video.txt?

Oh, wasn't aware of this file. (Havn't looked there for a while now.)
Now I know what went wrong. :-)

Finally the vbetool trick did it.

thx, ritch

Re: [SUSPEND] Screen slides down after STR / neomagic

[Pavel Machek]

On St 08-03-06 00:45:55, Richard Mittendorfer wrote:
> Also sprach Pavel Machek <pavel@ucw.cz> (Tue, 7 Mar 2006 22:43:37
> +0100):
> > On Po 06-03-06 10:09:05, Richard Mittendorfer wrote:
> > > Hello,
> > > 
> > > Toshiba Libretto; Every time I suspend to RAM an come back to Console or
> > > later exit Xorg (it's ok within X), the screen is somewhat displaced
> > > downward:
> > 
> > Did you read Doc*/power/video.txt?
> 
> Oh, wasn't aware of this file. (Havn't looked there for a while now.)
> Now I know what went wrong. :-)
> 
> Finally the vbetool trick did it.

Could you

1) try to find out if acpi_sleep=* options can fix it too (they are
better for debugging)

2) submit patch for video.txt

3) if possible, download s2ram from www.sf.net/projects/suspend (from
CVS) and add your machine to whitelist?

								Pavel
-- 
Web maintainer for suspend.sf.net (www.sf.net/projects/suspend) wanted...

Re: [SUSPEND] Screen slides down after STR / neomagic

[Richard Mittendorfer]

Also sprach Pavel Machek <pavel@suse.cz> (Wed, 8 Mar 2006 12:01:02
+0100):
> On St 08-03-06 00:45:55, Richard Mittendorfer wrote:
> > Also sprach Pavel Machek <pavel@ucw.cz> (Tue, 7 Mar 2006 22:43:37
> > +0100):
> > > On Po 06-03-06 10:09:05, Richard Mittendorfer wrote:
> > > > Hello,
> > > > 
> > > > Toshiba Libretto; Every time I suspend to RAM an come back to
> > > > Console or later exit Xorg (it's ok within X), the screen is
> > > > somewhat displaced downward:
> > > 
> > > Did you read Doc*/power/video.txt?
> > 
> > Oh, wasn't aware of this file. (Havn't looked there for a while
> > now.) Now I know what went wrong. :-)
> > 
> > Finally the vbetool trick did it.
> 
> Could you
> 
> 1) try to find out if acpi_sleep=* options can fix it too (they are
> better for debugging)

acpi_sleep=s3_bios|s3_mode|s3_bios,s3_mode  didn't do it.
 
> 2) submit patch for video.txt

#include <dontbeatme.h> =)

This patch adds an entry for handling video bios resets during s3
suspends on toshiba's 110ct/100ct neomagic chip. Tested on 110ct; 
100ct should have the same chipset.

--- linux-2.6.15/Documentation/power/video.txt.orig   2006-03-08
12:35:33.000000000 +0100
+++ linux-2.6.15/Documentation/power/video.txt        2006-03-08
12:36:40.000000000 +0100
@@ -130,6 +130,7 @@ Sony Vaio PCG-F403          ??? (*)
 Sony Vaio PCG-N505SN           ??? (*)
 Sony Vaio vgn-s260             X or boot-radeon can init it (5)
 Toshiba Libretto L5            none (1)
+Toshiba Libretto 100CT/110CT   none, see "VBEtool details" below
 Toshiba Satellite 4030CDT      s3_mode (3)
 Toshiba Satellite 4080XCDT      s3_mode (3)
 Toshiba Satellite 4090XCDT      ??? (*)

> 3) if possible, download s2ram from www.sf.net/projects/suspend (from
> CVS) and add your machine to whitelist?

I'll look into this.

> 								Pavel

sl ritch