Nouveau - Oct 2008 - [Bug 18234] New: c51 lvds script failure in randr12 mode. if I start the X server the screen is black and the framebuffer too because it trys to link the whole output to the monitor

http://bugs.freedesktop.org/show_bug.cgi?id=18234

           Summary: c51 lvds script failure in randr12 mode. if I start the
                    X server the screen is black and the framebuffer too
                    because it trys to link the whole output to the monitor
           Product: xorg
           Version: 7.3
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: maxmusterm at gmail.com
         QAContact: xorg-team at lists.x.org


I use a md98300 medion notebook with a nVidia Geforce Go 6150 graphic
processor.
You have to change the BIOSLOG to work.
I will later add a few Xorg logs for debugging.


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http://bugs.freedesktop.org/show_bug.cgi?id=18234





--- Comment #1 from Stuart Bennett <sb476 at cam.ac.uk>  2008-10-26
16:45:59 PST ---
Created an attachment (id=19872)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=19872)
randr12 enabled, blank/black screen xorg.log

Attaching log posted to pastebin for posterity


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--- Comment #2 from Stuart Bennett <sb476 at cam.ac.uk>  2008-10-26
17:07:56 PST ---
Issue can be worked around by worked around by turning call_lvds_script into a
noop.

It is possibly suspicious that in doing dpms on at the end of the modeset,
0xD3BF: [ (0x56) - INIT_CONDITION_TIME ] does not successfully complete: "
0xD3BF: Condition still not met, skiping following opcodes". A comparison
xorg
log from darktama's C51 executing (almost) the same script does successfully
complete.

Thomas: after nouveau has failed to start X, does the VT return, or does the
screen remain blank until the laptop is rebooted?

Two other things to try:
1) does it work if the timeout is increased: in nv_bios.c, function
init_condition_time(), change "BIOS_USLEEP(2000);" to
"BIOS_USLEEP(20000);"
2) if 1) does not work, does it work if the off script is not run: again in
nv_bios.c, function run_lvds_table(), just below "case
LVDS_PANEL_OFF:" add
"return;" on a new line.


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Thomas Schneider <maxmusterm at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |maxmusterm at gmail.com




--- Comment #3 from Thomas Schneider <maxmusterm at gmail.com>  2008-10-26
17:19:31 PST ---
The Screen remains blank and black.
Yes even after closing X.And yes the framebuffer is black too.


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--- Comment #4 from Thomas Schneider <maxmusterm at gmail.com>  2008-10-26
17:26:03 PST ---
> Two other things to try:
> 1) does it work if the timeout is increased: in nv_bios.c, function
> init_condition_time(), change "BIOS_USLEEP(2000);" to
"BIOS_USLEEP(20000);"
> 2) if 1) does not work, does it work if the off script is not run: again in
> nv_bios.c, function run_lvds_table(), just below "case
LVDS_PANEL_OFF:" add
> "return;" on a new line.
I don't have to test the second way cause the first one works fine.
Thank you Stuart


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--- Comment #5 from Stuart Bennett <sb476 at cam.ac.uk>  2008-10-27
12:55:33 PST ---
Fix based on 1) from comment 2 now pushed. Please test with a fresh git
checkout, and close this bug if it is solved.


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Thomas Schneider <maxmusterm at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




--- Comment #6 from Thomas Schneider <maxmusterm at gmail.com>  2008-10-27
17:10:45 PST ---
Newest git works fine.
Thank you Stuart


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