Nouveau - Jun 2012 - [Bug 51144] New: significant pixel corruption in text

https://bugs.freedesktop.org/show_bug.cgi?id=51144

             Bug #: 51144
           Summary: significant pixel corruption in text
    Classification: Unclassified
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: basile at starynkevitch.net
         QAContact: xorg-team at lists.x.org


Created attachment 63099
  --> https://bugs.freedesktop.org/attachment.cgi?id=63099
photo of screen portion with corrupted text pixels

(perhaps bug similar to 20363)

with latest git of xf86-video-nouveau:

commit 36d3f8c28c55c05ccf4efa985831d2d249bad2fe
Author: Ben Skeggs <bskeggs at redhat.com>
Date:   Wed Jun 13 22:41:58 2012 +1000

    dri2: kill debug spam

    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>


with latest git of drm
 % git log    
commit d1fcfb17b9642ae351b03056a27b328f314ca80a
Author: Jerome Glisse <jglisse at redhat.com>
Date:   Tue Jun 12 18:09:55 2012 -0400

    radeon: force 1D array mode for z/stencil surface

    On r6xx or evergreen z/stencil surface don't support linear or
    linear aligned surface, force 1D tiled mode for those.

    Signed-off-by: Jerome Glisse <jglisse at redhat.com>

======================================hardware (bought last week, june 2012):
   motherboard ASUS P8Z77-V
   Intel(R) Core(TM) i7-3770K CPU
   one graphic card Gigabyte GTS 450
   16Gb RAM, SSD disk + Sata disks
========================kernel: Linux 3.4.2 AMD64 (downloaded from kernel.org,
compiled thru make-kpkg)

% lspci
00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller
(rev 09)
00:01.0 PCI bridge: Intel Corporation 3rd Gen Core processor PCI Express Root
Port (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor
Graphics Controller (rev 09)
00:14.0 USB controller: Intel Corporation 7 Series Chipset Family USB xHCI Host
Controller (rev 04)
00:16.0 Communication controller: Intel Corporation 7 Series Chipset Family MEI
Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network
Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 7 Series Chipset Family USB Enhanced
Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 7 Series Chipset Family High Definition
Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 7 Series Chipset Family PCI Express Root
Port 1 (rev c4)
00:1c.3 PCI bridge: Intel Corporation 7 Series Chipset Family PCI Express Root
Port 4 (rev c4)
00:1c.4 PCI bridge: Intel Corporation 82801 PCI Bridge (rev c4)
00:1c.7 PCI bridge: Intel Corporation 7 Series Chipset Family PCI Express Root
Port 8 (rev c4)
00:1d.0 USB controller: Intel Corporation 7 Series Chipset Family USB Enhanced
Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Z77 Express Chipset LPC Controller (rev
04)
00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA
AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 7 Series Chipset Family SMBus Controller (rev
04)
01:00.0 VGA compatible controller: NVIDIA Corporation GF116 [GeForce GTS 450]
(rev a1)
01:00.1 Audio device: NVIDIA Corporation GF116 High Definition Audio Controller
(rev a1)
03:00.0 SATA controller: ASMedia Technology Inc. ASM1062 Serial ATA Controller
(rev 01)
04:00.0 PCI bridge: ASMedia Technology Inc. ASM1083/1085 PCIe to PCI Bridge
(rev 03)
06:00.0 USB controller: ASMedia Technology Inc. ASM1042 SuperSpeed USB Host
Controller

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Basile Starynkevitch <basile at starynkevitch.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|significant pixel           |significant pixel
                   |corruption in text  nouveau |corruption in text ; driver
                   |- GF116 [GeForce GTS 450]   |nouveau - GF116 [GeForce
                   |                            |GTS 450]

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--- Comment #1 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-15 23:28:39 PDT ---
Created attachment 63100
  --> https://bugs.freedesktop.org/attachment.cgi?id=63100
/var/log/Xorg.0.log

the Xorg.0.log

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Basile Starynkevitch <basile at starynkevitch.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |basile at starynkevitch.net
            Summary|significant pixel           |significant pixel
                   |corruption in text          |corruption in text  nouveau
                   |                            |- GF116 [GeForce GTS 450]

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--- Comment #2 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-15 23:32:45 PDT ---
Created attachment 63101
  --> https://bugs.freedesktop.org/attachment.cgi?id=63101
dmesg output

output of dmesg command

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--- Comment #3 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-15 23:37:13 PDT ---
Text appear corrupted in Iceaweasel (firefox), roxterm..

But xterm showing ok

(perhaps some fonts are ok and other are not)

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--- Comment #4 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-15 23:41:19 PDT ---
dual screen, dual head, both screens are samsung !sync!laster 206BW

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #63100|text/x-log                  |text/plain
          mime type|                            |

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #63101|text/x-log                  |text/plain
          mime type|                            |

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--- Comment #5 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-16 05:51:03 PDT ---
Some pixels are also corrupted perhaps unrelated to text, e.g. in
iceweasel/firefox tab titles.

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--- Comment #6 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-17 22:52:26 UTC ---
Seems to be much better with latest git commits on xf86-video-nouveau:
 % git log     
commit 6dbf4ea12600275775123f9f564469454415da55
Author: Ben Skeggs <bskeggs at redhat.com>
Date:   Mon Jun 18 13:28:07 2012 +1000

    bump version to 1.0.0

    Signed-off-by: Ben Skeggs <bskeggs at redhat.com>

commit 5e74cee90eeb4e8e638b371a5f1a2c6737be70ff
Author: Ben Skeggs <bskeggs at redhat.com>
Date:   Mon Jun 18 15:36:47 2012 +1000

    distcheck fixes

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--- Comment #7 from Basile Starynkevitch <basile at starynkevitch.net>
2012-06-17 22:55:43 PDT ---
But the issue still appears sometimes...., probably much less frequently...

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--- Comment #9 from Xavier <shiningxc at gmail.com> 2012-06-28 11:00:23
UTC ---
I also had this problem with a GeForce 8400 GS (dual head setup), using
3.5.0-rc3 and earlier kernel. It happens a lot in gvim, only with bold/italic
fonts.
Also in chrome tabs, and that's it.

I just updated xf86-video-nouveau to 1.0.0 after finding this bug report, so
let's see.

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--- Comment #8 from Tollef Fog Heen <tfheen at err.no> 2012-06-28 10:51:24
PDT ---
I'm seeing this as well on a GF116 [GeForce GTX 550 Ti] in single-head
setup.
(The card has two connectors, but I'm only using one).  I've managed to
grab
screen dumps of the corruption and the corruption is present also in the screen
grab.

The corruption is typically resolved on a unfocus/focus on the window.

Like the original submitter, I'm only seeing this in certain apps. 
gnome-terminal is heavily affected, emacs not at all, chromium to a very small
degree (and then just in the location bar for me), hotot quite a bit.

Happy to test any fixes you might have for this.

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--- Comment #13 from Klaas De Craemer <klaasdc at gmail.com> 2012-07-03
08:51:52 UTC ---
It is remarkable that I haven't seen these artifacts in KDE/Qt, but only in
GTK-based applications

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Klaas De Craemer <klaasdc at gmail.com> changed:

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

--- Comment #10 from Klaas De Craemer <klaasdc at gmail.com> 2012-07-03
07:47:52 PDT ---
*** Bug 51645 has been marked as a duplicate of this bug. ***

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--- Comment #11 from Klaas De Craemer <klaasdc at gmail.com> 2012-07-03
08:00:46 PDT ---
I installed xserver-xorg-video-nouveau 1:1.0.1-1 from Debian Unstable and so
far no more issues with pixel corruption.

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--- Comment #12 from Tollef Fog Heen <tfheen at err.no> 2012-07-03
08:19:32 PDT ---
I'm still occasionally seeing it with 1:1.0.1-1 for Debian.

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--- Comment #14 from Klaas De Craemer <klaasdc at gmail.com> 2012-07-05
04:52:54 PDT ---
(In reply to comment #12)
> I'm still occasionally seeing it with 1:1.0.1-1 for Debian.
Okay, I can confirm there are still issues. Now mostly menus that don't
appear
at all or incompletely until the mouse is moved over it to highlight items.
Additionally, borders of floating windows do not appear (mouse-over tips in
Eclipse in my case). Again GTK-apps only.

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--- Comment #15 from Str8bs <str8bslinux at gmail.com> 2012-07-11 18:29:24
PDT ---
(In reply to comment #14)
> (In reply to comment #12)
> > I'm still occasionally seeing it with 1:1.0.1-1 for Debian.
> 
> Okay, I can confirm there are still issues. Now mostly menus that don't
appear
> at all or incompletely until the mouse is moved over it to highlight items.
> Additionally, borders of floating windows do not appear (mouse-over tips in
> Eclipse in my case). Again GTK-apps only.
This sounds like what I see on PPC Nvidia FX5200 with the addition of half the
screen being corrupt or black. An oversize image as desktop seems to
replicate/exaggerate the problem. Increasing ydim of Virtual is one workaround
that works for PPC nouveau users with this card. Moves corruption off screen?

Not sure, but I thought it may be same as:
https://bugs.freedesktop.org/show_bug.cgi?id=47266

References: 
http://ubuntuforums.org/showthread.php?t=1937940&page=2
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668828

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--- Comment #16 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Does this still happen with the latest software (kernel, xf86-video-nouveau,
xorg 1.14)

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

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

--- Comment #17 from Ilia Mirkin <imirkin at alum.mit.edu> ---
No response to re-test request in a month. Closing as invalid.

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--- Comment #18 from Tollef Fog Heen <tfheen at err.no> ---
FWIW, I've not seen this in quite a while, so yeah, presumed fixed.

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