https://bugs.freedesktop.org/show_bug.cgi?id=35998

Alex Deucher agd5f@yahoo.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Component|Drivers/DRI/R600 |Drivers/DRI/r300

--- Comment #1 from Alex Deucher agd5f@yahoo.com 2011-04-05 12:47:36 PDT --- Are you using r300c or r300g? Please attach the output of glxinfo.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

Alex Deucher agd5f@yahoo.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Component|Drivers/DRI/r300 |Drivers/Gallium/r300

--- Comment #3 from Alex Deucher agd5f@yahoo.com 2011-04-05 13:19:31 PDT --- You are using the gallium driver.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #5 from robhae@gmail.com 2011-04-16 01:53:47 PDT --- Same artifacts here. x1250 (Gallium-Driver) on Samsung R60

https://bugs.freedesktop.org/show_bug.cgi?id=35998

Marek Olšák maraeo@gmail.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Summary|Artifacts under Gnome Shell |RS600: Texture alignment | |issues under Gnome Shell

--- Comment #7 from Marek Olšák maraeo@gmail.com 2011-05-06 05:53:07 PDT --- It looks like only the very thin characters misrender.

Unfortunately, I don't have RS600.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #9 from Milan Plzik emempi@gmail.com 2011-05-14 07:02:04 PDT --- Created an attachment (id=46709) View: https://bugs.freedesktop.org/attachment.cgi?id=46709 Review: https://bugs.freedesktop.org/review?bug=35998&attachment=46709

R300 texture alignment partial fix

As Marek stated, this issue is related to texture alignment. After playing with mesa/src/gallium/drivers/r300/r300_texture_desc.c (see attached patch), I was able to get things rendering properly -- font issue disappeared with setting 'height' alignment of 8bpp textures to '2' and misrendered artifacts on some round edges with 32bpp textures and 'height' alignment to 2. Patch contains only values I needed to fix -- I guess there is some relation between parts of array I've been modifying.

Unfortunately, this patch causes, that some (random) of GNOME 3's popup windows are being rendered improperly -- their content looks like portions of other textures (e.g. desktop background, icons, ...; random parts of vram), with no apparent relation to expected content.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #11 from Alex Deucher agd5f@yahoo.com 2011-05-14 09:55:26 PDT --- *64 byte

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #13 from Milan Plzik emempi@gmail.com 2011-05-15 10:34:56 PDT --- After more thorough testing, it seems that r300 driver is not able to correctly create surfaces of certain dimensions; random vram content is shown instead. Also, it doesn't seem to change, despite of application changing contents of its window. I tried some more changes in the alignment table (like multiplying related alignments by two), but it had only negative effect.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #15 from Milan Plzik emempi@gmail.com 2011-05-16 13:04:44 PDT --- (In reply to comment #14)

Created an attachment (id=46752)

View: https://bugs.freedesktop.org/attachment.cgi?id=46752 Review: https://bugs.freedesktop.org/review?bug=35998&attachment=46752

little experiment

(In reply to comment #13)

...

After more thorough testing, it seems that r300 driver is not able to correctly create surfaces of certain dimensions; random vram content is shown instead.

Not true. The r300 driver gets it right for all the other GPUs, it's just rs6xx that is broken.

Sorry, I was generalizing too much; for me it's always in rs600 context.

Please try the attached patch.

I tried this patch; unfortunately it just reverted the old behavior -- problem with certain surface sizes was gone, but problem with texture alignment returned for both 8bpp and 32bpp textures. I did not notice any other differences.

If you will have any other ideas/patches, I'll gladly test them; but I can't do much here by myself.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #17 from Milan Plzik emempi@gmail.com 2011-05-17 03:01:25 PDT --- (In reply to comment #16)

Nope, I've run out of ideas and I don't have the GPU.

(Milan, are you near Brno by any chance?)

I'll contact you by e-mail and we'll see whether we can arrange a meeting.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #19 from Milan Plzik emempi@gmail.com 2011-05-28 12:50:57 PDT --- After testing r300g driver (both with and withoug alignment fix) with different values for ColorTiling option, the results seems to be unaffected -- no matter whether the ColorTiling is enabled or disabled, I still get the original behavior (only affected by patch to alignment table).

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #21 from Milan Plzik emempi@gmail.com 2011-05-29 23:40:31 PDT --- (In reply to comment #20)

Setting this environment variable disables tiling in r300g:

RADEON_DEBUG=notiling

It must be set such that the Gnome Shell can see it, of course.

I tested gnome-shell with it; when using alignment table patches (Xorg's ColorTiling was always false), there was no change. However, when I reverted to original r300_texture_desc.c, things seem to work more-or-less correctly -- 8bpp textures seem to render fine (there's one case when I'm not sure), however, small 32bpp textures still render incorrectly.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #23 from Tomasz P. son_of_the_osiris@interia.pl --- Is it still a issue with current mesa and kernel ?

https://bugs.freedesktop.org/show_bug.cgi?id=35998

Madis Liias madisliias@gmail.com changed:

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

--- Comment #24 from Madis Liias madisliias@gmail.com ---

From the image it seems like the same rendering issue I am having:

https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/751828

My graphics card is ATI Radeon Xpress 1250

$ glxinfo | grep -i opengl OpenGL vendor string: X.Org R300 Project OpenGL renderer string: Gallium 0.4 on ATI RS600 OpenGL version string: 2.1 Mesa 9.1.1 OpenGL shading language version string: 1.20

https://bugs.freedesktop.org/show_bug.cgi?id=35998

lct@mail.ru changed:

What |Removed |Added ---------------------------------------------------------------------------- Severity|normal |major

--- Comment #26 from lct@mail.ru --- Affects me as well, OpenSuse 12.3 - Tumbleweed (kernel 3.7-3.11); for my report and details (Samsung R60, hardly any different from people here) see http://phoronix.com/forums/showthread.php?89174-Radeon-Gnome-3-AMD-Xpress-12...

Also see https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/751828 Affects a LOT of people. :(((

I dump importance to medium-major, because its really distracting as it corrupts whole working area of gnome 3 / gnome shell (time, calender, system control (settings, power options))

With 3.11 kernel one gets a colorful triangle show, screen is tiled into four flashing triangle stips, after 3-4 seconds they vanish, but the font corruption stays same.

This bug might be linked with 35457

https://bugs.freedesktop.org/show_bug.cgi?id=35998

lct@mail.ru changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|REOPENED |RESOLVED Resolution|--- |DUPLICATE

--- Comment #28 from lct@mail.ru --- This is definite duplicate of 35457 (compare screen attachments)

*** This bug has been marked as a duplicate of bug 35457 ***

https://bugs.freedesktop.org/show_bug.cgi?id=35998

Alex Deucher agd5f@yahoo.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|RESOLVED |REOPENED Resolution|DUPLICATE |---

--- Comment #29 from Alex Deucher agd5f@yahoo.com --- This is not a duplicate.

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #31 from Simon sam.ua@zoho.com --- I have a similar problem

My bug reports on other treckers and full information about my hardware: https://bugzilla.gnome.org/show_bug.cgi?id=746160 https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-ati/+bug/143482...

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #33 from Andrew Randrianasulu randrik@mail.ru --- I also have affected system and wanted for ages to see it fixed (with or without my help). unfortunately, even if I still can try and load old linux distro where last working fglrx (proprietary driver) was working - I have no idea what to do next - even mmiotrace format apparently changed from 2.6.29 kernel era, and here i fear some more tracing will be needed (and tools for userspace tracing also appear to bitrot or not even properly support this GPU).

i tried to appear on #radeon but everyone was busy there (I think this situation will continue more or less due to new bug flow, new hardware, new features, other users and developers also wanting various levels of help). may be setting special 'hackday' for this or other specific bugs will help? if you like the idea - please reply (I tend to read dri-devel and mesa-dev ML).

Thanks in advance!

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #35 from Andrew Randrianasulu randrik@mail.ru --- Created attachment 121663 --> https://bugs.freedesktop.org/attachment.cgi?id=121663&action=edit dmesg

as you can see this happens also on 32-bit kernel/32 bit userspace

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #37 from Alex Deucher alexdeucher@gmail.com --- *** Bug 92651 has been marked as a duplicate of this bug. ***

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #39 from Andrew Randrianasulu randrik@mail.ru --- Created attachment 122016 --> https://bugs.freedesktop.org/attachment.cgi?id=122016&action=edit chromium BSU debug log with RADEON_DEBUG=texalloc,notiling

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #41 from Micha m.st@mailbox.org --- Is there any hope that this will ever be fixed by someone?

Not even Kodi does work on the laptop - cannot verify if it is the same problem - but the osd while playback video looks the same (striped) way as the menubar of the Unity-desktop...think its the same problem.

There is almost nothing we can do with these laptops until someone will fix this!

https://bugs.freedesktop.org/show_bug.cgi?id=35998

--- Comment #43 from Micha m.st@mailbox.org --- Same for Warzone2100 (and others?) on latest Mint Mate with Oibaf ppa, too. Still the same problems.