Nouveau - Jun 2008 - [Bug 16269] New: NV47 DVI DPMS scary loop

http://bugs.freedesktop.org/show_bug.cgi?id=16269

           Summary: NV47 DVI DPMS scary loop
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: vallesroc at gmail.com
         QAContact: xorg-team at lists.x.org


Created an attachment (id=16997)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16997)
Xorg.0.log

in short, behaviour of xset dpms force suspend/standby/off
blob: TFT turns off
nouveau: TFT turns off, then on "no signal", then off (repeat forever)

The TFT is a ViewSonic VP930, connected by DVI.
I attach xorg.conf and Xorg.0.log.

Nouveau was build a few hours ago (20080608, 2am GMT aprox)

It's scary enough! It would help to know how to entirelly disable DPMS in
xorg.conf so that I can use nouveau without fear of destroying the screen,
while the problem is identified and a solution is found.

Interestingly, a really old blob version did behave like that with my old NV11
card and this screen, a pair of years ago. Nvidia fixed it eventually.

Interesting part of dmesg (not much to see there):
[   12.124804] agpgart: Found an AGP 3.5 compliant device at 0000:00:00.0.
[   12.124825] agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode
[   12.124925] agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode
[ 1354.480303] [drm] Initialized drm 1.1.0 20060810
[ 1354.484501] [drm] Detected an NV40 generation card (0x047300a1)
[ 1354.484507] [drm] Initialized nouveau 0.0.10
drm-2.3.0-1274-g6905c7a29d2a3bc0e on minor 0
[ 1356.530920] agpgart: Found an AGP 3.5 compliant device at 0000:00:00.0.
[ 1356.530943] agpgart: X tried to set rate=x12. Setting to AGP3 x8 mode.
[ 1356.530953] agpgart: Putting AGP V3 device at 0000:00:00.0 into 8x mode
[ 1356.531066] agpgart: Putting AGP V3 device at 0000:01:00.0 into 8x mode
[ 1356.810550] [drm] Allocating FIFO number 0
[ 1356.812848] [drm] nouveau_fifo_alloc: initialised FIFO 0
[ 1356.813176] [drm] Allocating FIFO number 1
[ 1356.815370] [drm] nouveau_fifo_alloc: initialised FIFO 1


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--- Comment #1 from Roc Vall?s Dom?nech <vallesroc at gmail.com> 
2008-06-08 05:10:57 PST ---
Created an attachment (id=16998)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=16998)
Xorg.conf


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--- Comment #2 from Roc Vall?s Dom?nech <vallesroc at gmail.com> 
2008-06-08 05:11:52 PST ---
lspci lists the card as:
01:00.0 VGA compatible controller: nVidia Corporation G70 [GeForce 7800 GS]
(rev a2)


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--- Comment #3 from Roc Vall?s Dom?nech <vallesroc at gmail.com> 
2008-06-09 02:21:57 PST ---
In the other output of the card, there's a non-DCC-enabled CRT. I should
have
commented on this earlier, but for some reason I didn't think on it.

Interestingly, I had to boot sysresccd to move some data around and reinstall
grub after a HDs reorganization, and noticed the bug is also there with the nv
driver this livecd has (2.1.2). So, the only one that works properly is the
blob here.


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--- Comment #4 from Roc Vall?s Dom?nech <vallesroc at gmail.com> 
2008-06-10 01:05:50 PST ---
Just sent a trace to the mmiotraces address. Subject is "bug 16269".

The trace contains X startup, xset dpms force off and on, with markers
everywhere.

I hope this helps figure out how the blob properly does turn the TFT off.


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--- Comment #5 from Stuart Bennett <sb476 at cam.ac.uk>  2009-01-13
15:33:14 PST ---
A lot of the dpms code has been changed since this was reported.  Any chance
you could see if your problem is fixed?


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Marcin Slusarz <marcin.slusarz at gmail.com> changed:

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

--- Comment #6 from Marcin Slusarz <marcin.slusarz at gmail.com>
2010-07-23 16:45:16 PDT ---
No reponse from the reporter for more than a year. Closing.
If the problem still exists on current version, please reopen with new set of
logs.

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