Nouveau - Jan 2008 - [Bug 14025] New: The X11 / X Server Exhibits Jitters in the Display after it is on for many hours

http://bugs.freedesktop.org/show_bug.cgi?id=14025

           Summary: The X11 / X Server Exhibits Jitters in the Display after
                    it is on for many hours
           Product: xorg
           Version: 7.2
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: shlomif at iglu.org.il
         QAContact: xorg-team at lists.x.org


Created an attachment (id=13661)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13661)
Xorg.0.log of the session.

On my setup:

* Mandriva Cooker (updated as of 2008-Jan-10).
* Pentium 4 2.4 GHz.
* GeForce 4 MX.
* Screen: ViewSonic VA-903m
* xorg-x11-7.2.0-2mdv2008.0
* Nouveau drivers - mostly up-to-date git master, installed using the
instructions on the wiki.
* x11-server-1.4-18mdv2008.1

I'm getting jitters on the screen - sudden movements of several pixels in a
certain region that disappear after a fraction of a second. I don't recall
seeing it a week ago or earlier.

I'll attach an Xorg.0.log file and an IRC log of #nouveau.


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--- Comment #1 from Shlomi Fish <shlomif at iglu.org.il>  2008-01-11
09:55:56 PST ---
Created an attachment (id=13662)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13662)
Log of Conversation in #nouveau regarding this bug.

This is a log of the conversation in Freenode's #nouveau about my problems.
I
am rindolf.


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--- Comment #2 from Maarten Maathuis <madman2003 at gmail.com>  2008-02-01
15:46:37 PST ---
Does this still occur with current git?

I think i once saw my screen in a similar state, some regions more than others,
were the letters were shaking a bit. Like watching a bad crt, when in fact it
was a digital flat panel.

Does it occur consistently, is there anything you can do to speed it up?


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Shlomi Fish <shlomif at iglu.org.il> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |shlomif at iglu.org.il




--- Comment #3 from Shlomi Fish <shlomif at iglu.org.il>  2008-02-01
17:18:58 PST ---
(In reply to comment #2)
> Does this still occur with current git?
> 
I saw it exhibited in one of the latest Nouveaus. At least those that were
present as of kernel-2.6.24-rc8 or -rc7. I'm not sure if I had it since I
upgraded to kernel-2.6.24 and updated Nouveau with it.
> I think i once saw my screen in a similar state, some regions more than
others,
> were the letters were shaking a bit. Like watching a bad crt, when in fact
it
> was a digital flat panel.
> 
> Does it occur consistently, is there anything you can do to speed it up?
> 
It doesn't occur consistently, and I wasn't able to find anything to
speed it
up. However, sometimes it appears shortly after I restart X from the command
line (K -> Logout and then startx again).

Regards,

       Shlomi Fish


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--- Comment #4 from Maarten Maathuis <madman2003 at gmail.com>  2008-02-02
11:41:58 PST ---
Could you make a picture of it?


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--- Comment #5 from Shlomi Fish <shlomif at iglu.org.il>  2008-02-02
11:54:01 PST ---
(In reply to comment #4)
> Could you make a picture of it?
> 
Sorry no, but these jitters disappear shortly after they appear, before I can
catch them. And they appear only for a fraction of a second.


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--- Comment #6 from Maarten Maathuis <madman2003 at gmail.com>  2008-02-03
11:20:38 PST ---
Any chance you could try Option "Randr12" in your device section?

It's a new modeset system, that will hopefully replace the old one in the
forseeable future.


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--- Comment #7 from Shlomi Fish <shlomif at iglu.org.il>  2008-02-03
11:49:11 PST ---
(In reply to comment #6)
> Any chance you could try Option "Randr12" in your device section?
> 
Yes, I can. I'll let you know what happens.

Regards,

        Shlomi Fish


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--- Comment #8 from Pekka Paalanen <pq at iki.fi>  2009-08-08 08:30:09 PST
---
So, what happened?

Could this be a hardware failure, e.g. gpu running hot and having the crtc
scanout jumping?


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--- Comment #9 from Shlomi Fish <shlomif at iglu.org.il>  2009-08-08
12:45:11 PST ---
(In reply to comment #8)
> So, what happened?
> 
> Could this be a hardware failure, e.g. gpu running hot and having the crtc
> scanout jumping?
> 
Hi!

I'm sorry that I didn't report back. However, my old GeForce 4 card
broke, and
had to be replaced, and I bought an ATI Radeon HD 2600 card, which I'm using
with the radeonhd driver (and which works mostly perfectly). I don't
remmeber
what happened after I enabled randr12.

Feel free to close this bug.

Regards,

-- Shlomi Fish


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Pekka Paalanen <pq at iki.fi> changed:

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




--- Comment #10 from Pekka Paalanen <pq at iki.fi>  2009-08-08 23:57:54
PST ---
Thanks for letting us know. Closing.


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