[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|xorg-driver-ati@lists.x.org |dri-devel@lists.freedesktop
                   |                            |.org
         QA Contact|xorg-team@lists.x.org       |
            Product|xorg                        |Mesa
            Version|6.99.99.900 (7.0 RC0)       |unspecified
          Component|Driver/Radeon               |Drivers/DRI/Radeon

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> ---
This is probably a duplicate of bug 51658.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #2 from Stefan Schmidt <stefan.schmidt@gmx.net> ---
I installed all 9.2.0~git20130729+9.2.9b8ad643-0ubuntu0sarvatt~precise updates
via https://launchpad.net/~xorg-edgers but sadly nothing changed. Any further
ideas?

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #3 from Alex Deucher <agd5f@yahoo.com> ---
As mentioned in bug 51658, r1xx/r2xx hardware supports texture formats that
cannot be rendered to:

"> r200 essential patches (1st 3 patches) for gnome shell:
> "Essential patch to disable texture formats that are reported unrenderable
> elsewhere in driver."
I'm not really happy with that. I guess the problem is if we try to attach a
texture to a fbo it is too late to notice we cannot render to that format. But
this sort of sucks for ordinary textures. Ideally we'd probably be able to
really determine our format only at the first upload of data to the texture
(which presumably won't happen) so we could change it if we attach it to a fbo.
Though if there is indeed already data uploaded we're screwed."

You could try applying attachment 63711.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #4 from Roland Scheidegger <sroland@vmware.com> ---
FWIW maybe that patch really is a good idea. I don't really look at r200 much
these days, and since it doesn't really seem possible to change the format
later so we can render to it if necessary sacrificing texture upload speed
might be well worth the tradeoff of avoiding troubles with fbos.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #5 from Stefan Schmidt <stefan.schmidt@gmx.net> ---
Nice! Would this patch also be meaningful for a R100? I'm not firm in this
topic, but to my understanding a RV200 is (confusingly) part of the R100
family.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #6 from Alex Deucher <agd5f@yahoo.com> ---
The patch touched code that is shared by both r100 and r200 so it's relevant to
and applies to both.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #7 from Alex Deucher <agd5f@yahoo.com> ---
In regards to this bug does the patch fix the issue you are seeing?

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #8 from Stefan Schmidt <stefan.schmidt@gmx.net> ---
Great, then I'll give it a try and report the result.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #9 from Roland Scheidegger <sroland@vmware.com> ---
(In reply to comment #6)
> The patch touched code that is shared by both r100 and r200 so it's relevant
> to and applies to both.

Actually it shouldn't do anything on r100, since it always should have used the
same format there anyway. So this bug seems to be something else entirely
unfortunately.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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--- Comment #10 from Stefan Schmidt <stefan.schmidt@gmx.net> ---
Oh bummer, any other ideas?

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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https://bugs.freedesktop.org/show_bug.cgi?id=67981

--- Comment #11 from Stefan Schmidt <stefan.schmidt@gmx.net> ---
Okay, I played a little around with window managers. Mutter also has graphical
glitches (a little different ones though), Compiz doesn't work at all, Xfce and
Fluxbox work and If I replace elementary's window manager gala with xfwm4 then
as far as I can see the severe glitches disappear with only minor glitches
remaining.

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[Bug 67981] Graphical Glitches with RV200 on IBM Thinkpad T40

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GitLab Migration User <gitlab-migration@fdo.invalid> changed:

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

--- Comment #12 from GitLab Migration User <gitlab-migration@fdo.invalid> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance: https://gitlab.freedesktop.org/mesa/mesa/issues/286.

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