[Bug 28852] New: [KMS] radeon artifacts when switched to graphics after boot

[Bug 28852] New: [KMS] radeon artifacts when switched to graphics after boot

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https://bugzilla.kernel.org/show_bug.cgi?id=28852

           Summary: [KMS] radeon artifacts when switched to graphics after
                    boot
           Product: Drivers
           Version: 2.5
    Kernel Version: 2.6.38-rc2 (branch airlied/drm-2.6.git/drm-fixes)
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: oldium.pro@seznam.cz
        Regression: Yes


I have running lines on the screen when the radeon driver takes control (see
attached video from system boot). In 2.6.37 it worked fine (some old
drm-radeon-testing branch), but in 2.6.38 drm-fixes it started to appear.

I will attach dmesg output for both 2.6.37 and 2.6.38 with drm.debug=3.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics after boot

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--- Comment #1 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:14:00 ---
Here is the video showing the problem: http://problem.oldium.net/radeon.avi

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[Bug 28852] [KMS] radeon artifacts when switched to graphics after boot

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--- Comment #2 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:14:42 ---
Created an attachment (id=47202)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47202)
2.6.38 dmesg

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[Bug 28852] [KMS] radeon artifacts when switched to graphics after boot

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--- Comment #3 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:15:24 ---
Created an attachment (id=47212)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47212)
2.6.37 dmesg

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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Oldřich Jedlička <oldium.pro@seznam.cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[KMS] radeon artifacts when |[KMS] radeon artifacts when
                   |switched to graphics after  |switched to graphics during
                   |boot                        |boot




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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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Rafael J. Wysocki <rjw@sisk.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |florian@mickler.org,
                   |                            |maciej.rutecki@gmail.com,
                   |                            |rjw@sisk.pl
             Blocks|                            |27352




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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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Oldřich Jedlička <oldium.pro@seznam.cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|27352                       |




--- Comment #4 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:26:25 ---
It is notebook's LVDS on Mobility Radeon HD 3470.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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https://bugzilla.kernel.org/show_bug.cgi?id=28852


Oldřich Jedlička <oldium.pro@seznam.cz> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |27352




--- Comment #5 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:29:02 ---
Sorry, mid-air collision.

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--- Comment #6 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 21:33:19 ---
Created an attachment (id=47222)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47222)
VBIOS

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Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com




--- Comment #7 from Alex Deucher <alexdeucher@gmail.com>  2011-02-10 21:47:26 ---
Can you attach the output of lspci -vnn for your card?

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--- Comment #8 from Alex Deucher <alexdeucher@gmail.com>  2011-02-10 21:48:09 ---
The following patches should fix it:
http://lists.freedesktop.org/archives/dri-devel/2011-February/007976.html
http://lists.freedesktop.org/archives/dri-devel/2011-February/008059.html

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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https://bugzilla.kernel.org/show_bug.cgi?id=28852





--- Comment #9 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 22:13:11 ---
I've applied both patches and the problem is worse.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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--- Comment #10 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-10 22:14:02 ---
Created an attachment (id=47242)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47242)
`lspci -vnn` with my card

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--- Comment #11 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-11 06:21:50 ---
Created an attachment (id=47262)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47262)
Patch that fixes the problem

The patch reverts commit "drm/radeon/kms: disable ss fixed ref divide".

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--- Comment #12 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-11 06:24:38 ---
I've applied the patch on top of the two patches from the mailing list.

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--- Comment #13 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-11 06:42:18 ---
I forgot to mention the rest of my hardware - Acer TravelMate 5730G.

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--- Comment #14 from Alex Deucher <alexdeucher@gmail.com>  2011-02-11 07:12:27 ---
Does your revert patch work ok without the two mailing list patches?

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--- Comment #15 from Alex Deucher <alexdeucher@gmail.com>  2011-02-11 07:33:25 ---
Created an attachment (id=47292)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47292)
possible fix

Can you try the following patch against 2.6.38-rc4 or newer and make sure all
is working well?

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

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--- Comment #16 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-11 20:10:45 ---
My patch on 2.6.38-rc4 doesn't fix the problem, your patch neither. My patch
combined with previous two from mailing list fixes the problem on 2.6.38-rc4.

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--- Comment #17 from Alex Deucher <alexdeucher@gmail.com>  2011-02-12 01:13:59 ---
Created an attachment (id=47462)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47462)
new patch

Can you try this patch?  Try uncommenting the following lines to see if either
of those flags work any better.  Try them individually and together if possible
and report back which, if any, helps.

/*pll->flags |= RADEON_PLL_PREFER_MINM_OVER_MAXP;*/

/*if (ASIC_IS_AVIVO(rdev))
        pll->flags |= RADEON_PLL_USE_FRAC_FB_DIV;*/

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--- Comment #18 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-12 16:26:09 ---
Results with 2.6.38-rc4 and first/second block uncommented (no=commented,
yes=uncommented):

first second result
-------------------
no    no     bad (usual)
yes   no     worse
no    yes    good
yes   yes    good

The result is that the second block (RADEON_PLL_USE_FRAC_FB_DIV) has to be
uncommented on my system. I've tested only LVDS, not any dual-screen
configuration.

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--- Comment #19 from Rafael J. Wysocki <rjw@sisk.pl>  2011-02-12 22:46:54 ---
Handled-By : Alex Deucher <alexdeucher@gmail.com>

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--- Comment #20 from Alex Deucher <alexdeucher@gmail.com>  2011-02-13 23:48:00 ---
Created an attachment (id=47722)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47722)
final patch

The attached patch is what I am proposing goes upstream.  Please verify it
works properly for you.

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--- Comment #21 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-14 07:12:11 ---
(In reply to comment #20)
> Created an attachment (id=47722)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=47722) [details]
> final patch
> 
> The attached patch is what I am proposing goes upstream.  Please verify it
> works properly for you.

The patch fixes my problem.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=28852





--- Comment #22 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-16 07:22:02 ---
Latest kernel from airlied/drm-2.6.git, branch drm-fixes, works fine.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=28852





--- Comment #23 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-16 19:21:17 ---
Fixed in mainstream 2.6.38-rc5. Thanks!

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=28852





--- Comment #24 from Oldřich Jedlička <oldium.pro@seznam.cz>  2011-02-19 11:38:23 ---
It is safe to mark this bug as RESOLVED. I don't know the correct resolution,
though.

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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=28852


Rafael J. Wysocki <rjw@sisk.pl> changed:

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




--- Comment #25 from Rafael J. Wysocki <rjw@sisk.pl>  2011-02-19 11:46:50 ---
Fixed by commit 5b40ddf drm/radeon/kms: hopefully fix pll issues for real (v3).

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The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
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[Bug 28852] [KMS] radeon artifacts when switched to graphics during boot

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=28852


Rafael J. Wysocki <rjw@sisk.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED




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The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
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