[Bug 76559] New: screen corruption after going from VT to X

[Bug 76559] New: screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

          Priority: medium
            Bug ID: 76559
          Assignee: dri-devel@lists.freedesktop.org
           Summary: screen corruption after going from VT to X
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: fabio.ped@libero.it
          Hardware: x86 (IA32)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

I have a MacBook Pro with a RV530 with an external Philips 22" monitor
connected (the notebook screen is disabled in X). After switching to VT and
then coming back to X the screen is corrupted (like if every odd line has an
offset). The same happens after suspend. A screenshot doesn't show the problem.
I then usually change resolution with the Ubuntu tool (selecting a different
resolution and then reapplying the previous one) and that restore the screen.

Attached dmesg and Xorg log after the X -> VT -> X cycle.

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

--- Comment #1 from Fabio Pedretti <fabio.ped@libero.it> ---
Created attachment 96296
  --> https://bugs.freedesktop.org/attachment.cgi?id=96296&action=edit
dmesg

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

--- Comment #2 from Fabio Pedretti <fabio.ped@libero.it> ---
Created attachment 96297
  --> https://bugs.freedesktop.org/attachment.cgi?id=96297&action=edit
Xorg log after the corruption has been reproduced (X -> VT -> X) and restored
changing resolution

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

Fabio Pedretti <fabio.ped@libero.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|DRM/Radeon                  |General

--- Comment #3 from Fabio Pedretti <fabio.ped@libero.it> ---
This issue is still reproducible with Ubuntu 14.04 kernel (3.13.0-23.45),
before I was using 3.11.0-18.32 (Ubuntu 13.10 kernel).

This annoying issue is possibly not specific to radeon module. The following
dmesg ERROR is interesting and may be of help. Maybe it needs a monitor quirk?

[    3.398641] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 58
[    3.398646] Raw EDID:
[    3.398652]      00 ff ff ff ff ff ff 00 06 10 56 9c 00 00 00 00
[    3.398656]      04 10 01 03 80 22 16 78 0a 87 f5 94 57 4f 8c 27
[    3.398660]      27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
[    3.398664]      01 98 03 a2 01 01 9f 25 a0 40 51 84 0c 30 40 20
[    3.398669]      33 00 4b cf 10 00 00 19 00 00 00 01 00 06 10 30
[    3.398673]      00 00 00 00 00 00 00 00 0a 20 00 00 00 fe 00 4c
[    3.398677]      54 4e 31 35 34 58 37 00 00 00 0a 20 00 00 00 fc
[    3.398681]      00 43 6f 6c 6f 72 20 4c 43 44 0a 20 20 20 00 d5
[    3.427467] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 58
[    3.427471] Raw EDID:
[    3.427475]      00 ff ff ff ff ff ff 00 06 10 56 9c 00 00 00 00
[    3.427479]      04 10 01 03 80 22 16 78 0a 87 f5 94 57 4f 8c 27
[    3.427483]      27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
[    3.427487]      01 98 03 a2 01 01 9f 25 a0 40 51 84 0c 30 40 20
[    3.427491]      33 00 4b cf 10 00 00 19 00 00 00 01 00 06 10 30
[    3.427495]      00 00 00 00 00 00 00 00 0a 20 00 00 00 fe 00 4c
[    3.427499]      54 4e 31 35 34 58 37 00 00 00 0a 20 00 00 00 fc
[    3.427503]      00 43 6f 6c 6f 72 20 4c 43 44 0a 20 20 20 00 d5
[    3.456273] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 58
[    3.456278] Raw EDID:
[    3.456283]      00 ff ff ff ff ff ff 00 06 10 56 9c 00 00 00 00
[    3.456287]      04 10 01 03 80 22 16 78 0a 87 f5 94 57 4f 8c 27
[    3.456292]      27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
[    3.456296]      01 98 03 a2 01 01 9f 25 a0 40 51 84 0c 30 40 20
[    3.456300]      33 00 4b cf 10 00 00 19 00 00 00 01 00 06 10 30
[    3.456304]      00 00 00 00 00 00 00 00 0a 20 00 00 00 fe 00 4c
[    3.456308]      54 4e 31 35 34 58 37 00 00 00 0a 20 00 00 00 fc
[    3.456312]      00 43 6f 6c 6f 72 20 4c 43 44 0a 20 20 20 00 d5
[    3.484997] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 58
[    3.485001] Raw EDID:
[    3.485005]      00 ff ff ff ff ff ff 00 06 10 56 9c 00 00 00 00
[    3.485009]      04 10 01 03 80 22 16 78 0a 87 f5 94 57 4f 8c 27
[    3.485013]      27 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
[    3.485017]      01 98 03 a2 01 01 9f 25 a0 40 51 84 0c 30 40 20
[    3.485021]      33 00 4b cf 10 00 00 19 00 00 00 01 00 06 10 30
[    3.485025]      00 00 00 00 00 00 00 00 0a 20 00 00 00 fe 00 4c
[    3.485029]      54 4e 31 35 34 58 37 00 00 00 0a 20 00 00 00 fc
[    3.485033]      00 43 6f 6c 6f 72 20 4c 43 44 0a 20 20 20 00 d5
[    3.485041] radeon 0000:01:00.0: LVDS-1: EDID block 0 invalid.

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

Fabio Pedretti <fabio.ped@libero.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #96296|0                           |1
        is obsolete|                            |
                 CC|                            |fabio.ped@libero.it

--- Comment #4 from Fabio Pedretti <fabio.ped@libero.it> ---
Created attachment 118045
  --> https://bugs.freedesktop.org/attachment.cgi?id=118045&action=edit
dmesg with 3.19.0-26-generic

Any news on this issue?
It is still reproducible with Ubuntu 15.04 kernel:
Linux fabio-mac 3.19.0-26-generic #28-Ubuntu SMP Tue Aug 11 14:16:45 UTC 2015
i686 i686 i686 GNU/Linux

Attached updated dmesg.

Let me know if something other is needed.

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
this seems suspect:
[   61.916143] ------------[ cut here ]------------
[   61.916157] WARNING: CPU: 0 PID: 31 at
/build/linux-eVPZfP/linux-3.19.0/arch/x86/kernel/check.c:140
check_for_bios_corruption+0x8d/0xd0()
[   61.916161] Memory corruption detected in low memory

Maybe some Mac firmware issue?

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[Bug 76559] screen corruption after going from VT to X

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 873 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=76559

Fabio Pedretti <fabio.ped@libero.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #118045|0                           |1
        is obsolete|                            |

--- Comment #6 from Fabio Pedretti <fabio.ped@libero.it> ---
Created attachment 118051
  --> https://bugs.freedesktop.org/attachment.cgi?id=118051&action=edit
dmesg with 3.19.0-26-generic

> Maybe some Mac firmware issue?

Possibly, but I think that may not be related, as that doesn’t always happen
and maybe be a different issue.

I attach a different dmesg where the crash doesn't happen, but the corruption
problem is still present.

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[Bug 76559] screen corruption after going from VT to X

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https://bugs.freedesktop.org/show_bug.cgi?id=76559

Martin Peres <martin.peres@free.fr> changed:

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

--- Comment #7 from Martin Peres <martin.peres@free.fr> ---
Hi,

Freedesktop's Bugzilla instance is EOLed and open bugs are about to be migrated
to http://gitlab.freedesktop.org.

To avoid migrating out of date bugs, I am now closing all the bugs that did not
see any activity in the past year. If the issue is still happening, please
create a new bug in the relevant project at https://gitlab.freedesktop.org/drm
(use misc by default).

Sorry about the noise!

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