[Bug 43207] New: radeon driver on HD6570 shows pixel noise

[Bug 43207] New: radeon driver on HD6570 shows pixel noise

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=43207

           Summary: radeon driver on HD6570 shows pixel noise
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.*
          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: ccvs@mail.ru
        Regression: No


Videocard HD6570.

when I call "modprobe radeon", I see pixel noise on the screen and, if try
more, it's possible to see some characters from framebuffer console.

dmesg shows, that firmware loads right

without firmware module loads, but it's useless, besause X driver needs KMS,
which is disabled without firmware

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #1 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-05 09:07:30 ---
Created an attachment (id=73191)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=73191)
screenshot of problem

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207


Alex Deucher <alexdeucher@gmail.com> changed:

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




--- Comment #2 from Alex Deucher <alexdeucher@gmail.com>  2012-05-11 14:54:27 ---
Please attach your xorg log and dmesg.  Also, please attach your screenshot
rather and providing a link to a hosting site that may go away.

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #3 from Alex Deucher <alexdeucher@gmail.com>  2012-05-11 14:56:18 ---
This is a duplicate of:
https://bugs.freedesktop.org/show_bug.cgi?id=49792

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #4 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-11 20:21:01 ---
Created an attachment (id=73252)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=73252)
dmesg

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #5 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-11 20:21:21 ---
Created an attachment (id=73253)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=73253)
Xorg log

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #6 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-11 20:34:02 ---
Created an attachment (id=73254)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=73254)
screenshot

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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--- Comment #7 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-24 16:30:46 ---
I have tested kernel 3.4.

Results look a bit strange:

When i use modprobe radeon, I have the same pixel noise, which I had before.

If I start X, I have screen with windows and noise.

When I return to console, noise disappers. 

If I return to X, it also works fine.

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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--- Comment #8 from Jérôme Glisse <glisse@freedesktop.org>  2012-05-24 19:13:23 ---
Created an attachment (id=73382)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=73382)
Fix backend map

This patch should fix your issue

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[Bug 43207] radeon driver on HD6570 shows pixel noise

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=43207





--- Comment #9 from Vladislav Tcendrovskii <ccvs@mail.ru>  2012-05-25 20:10:06 ---
I've tried this patch on kernel 3.4, but the only visible result - switching
from noisy X screen to framebuffer console is much faster.

After such switching noise disappears.

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207


Florian Mickler <florian@mickler.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |florian@mickler.org




--- Comment #10 from Florian Mickler <florian@mickler.org>  2012-07-01 09:50:02 ---
A patch referencing this bug report has been merged in Linux v3.5-rc1:

commit 95c4b23ec4e2fa5604df229ddf134e31d7b3b378
Author: Jerome Glisse <jglisse@redhat.com>
Date:   Thu May 31 19:00:24 2012 -0400

    drm/radeon: fix HD6790, HD6570 backend programming

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[Bug 43207] radeon driver on HD6570 shows pixel noise

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https://bugzilla.kernel.org/show_bug.cgi?id=43207


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |alan@lxorguk.ukuu.org.uk
         Resolution|                            |CODE_FIX




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