* [Bug 42112] New: radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip
@ 2011-08-30 19:09 bugzilla-daemon
2011-08-30 19:15 ` [Bug 42112] " bugzilla-daemon
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-08-30 19:09 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=42112
Summary: radeon driver (kms) fails to read EDID data from
external LCD monitor with kernel 3.0.4 on a RV350 chip
Product: Drivers
Version: 2.5
Kernel Version: 3.0.4
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: mrsteven@gmx.de
Regression: Yes
Created an attachment (id=70922)
--> (https://bugzilla.kernel.org/attachment.cgi?id=70922)
Output of lspci -vv
Hello,
today I updated from kernel 3.0.3 to 3.0.4. Now when I plug an external LCD
monitor into the VGA output of my notebook, the radeon driver fails to read the
EDID data from the monitor, leading to a resolution of 1024x768 instead of
1280x1024 on it. With kernel 3.0.3 everything worked fine.
Now when I execute the following command in an X session
xrandr --output VGA-0 --auto
my dmesg output shows these lines:
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
radeon 0000:01:00.0: VGA-1: EDID block 0 invalid.
[drm:radeon_vga_detect] *ERROR* VGA-1: probed a monitor but no|invalid EDID
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
[drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid, remainder is 238
Raw EDID:
<3>00 ff ff ff ff ff ff 00 26 34 75 01 ec 37 00 00 ........&4u..7..
<3>12 0f 01 03 08 21 1b 78 e8 c5 c6 a3 57 4a 9c 23 .....!.x....WJ.#
<3>00 4f 54 a7 ef 80 81 80 01 01 01 01 01 01 01 01 .OT.............
<3>01 01 01 01 01 01 30 2a 00 98 51 00 2a 40 30 70 ......0*..Q.*@0p
<3>13 00 4a 0e 11 00 00 1e 10 0b d0 b4 20 90 31 10 ..J......... .1.
<3>12 6c d2 00 4a 0e 11 00 00 1c d5 09 80 a0 20 e0 .l..J......... .
<3>2d 10 10 60 a2 00 4a 0e 11 00 00 18 00 00 00 fc -..`..J.........
<3>00 4c 31 37 54 0a 20 20 20 20 20 20 20 20 00 ba .L17T. ..
radeon 0000:01:00.0: VGA-1: EDID block 0 invalid.
The monitor in question is a Hyundai ImageQuest L17T. Note that the internal
LVDS still works fine.
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* [Bug 42112] radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip
2011-08-30 19:09 [Bug 42112] New: radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip bugzilla-daemon
@ 2011-08-30 19:15 ` bugzilla-daemon
2011-08-30 19:42 ` bugzilla-daemon
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-08-30 19:15 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=42112
--- Comment #1 from mrsteven@gmx.de 2011-08-30 19:15:13 ---
Created an attachment (id=70932)
--> (https://bugzilla.kernel.org/attachment.cgi?id=70932)
Kernel log of me playing around with the external monitor
I was trying to set the external monitor to its native resolution and to add it
as a second monitor right of the internal notebook display. The latter worked,
but setting the native resolution failed without proper EDID information.
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* [Bug 42112] radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip
2011-08-30 19:09 [Bug 42112] New: radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip bugzilla-daemon
2011-08-30 19:15 ` [Bug 42112] " bugzilla-daemon
@ 2011-08-30 19:42 ` bugzilla-daemon
2011-08-30 20:11 ` bugzilla-daemon
2011-08-30 20:29 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-08-30 19:42 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=42112
Alex Deucher <alexdeucher@gmail.com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |alexdeucher@gmail.com
--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> 2011-08-30 19:42:14 ---
Can you bisect?
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* [Bug 42112] radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip
2011-08-30 19:09 [Bug 42112] New: radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip bugzilla-daemon
2011-08-30 19:15 ` [Bug 42112] " bugzilla-daemon
2011-08-30 19:42 ` bugzilla-daemon
@ 2011-08-30 20:11 ` bugzilla-daemon
2011-08-30 20:29 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-08-30 20:11 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=42112
--- Comment #3 from mrsteven@gmx.de 2011-08-30 20:11:29 ---
Hmm, my internet connection is quite slow, but I hope it will work if I clone
the stable tree with a line like this:
git clone --depth=100
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-3.0.y.git
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* [Bug 42112] radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip
2011-08-30 19:09 [Bug 42112] New: radeon driver (kms) fails to read EDID data from external LCD monitor with kernel 3.0.4 on a RV350 chip bugzilla-daemon
` (2 preceding siblings ...)
2011-08-30 20:11 ` bugzilla-daemon
@ 2011-08-30 20:29 ` bugzilla-daemon
3 siblings, 0 replies; 5+ messages in thread
From: bugzilla-daemon @ 2011-08-30 20:29 UTC (permalink / raw)
To: dri-devel
https://bugzilla.kernel.org/show_bug.cgi?id=42112
mrsteven@gmx.de changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #4 from mrsteven@gmx.de 2011-08-30 20:29:42 ---
Oh, it seems I have to apologize for my noise, because the problem was the
monitor itself: It somehow got confused and "forgot" its EDID data. The problem
was fixed by pulling its power line and then plugging it in again, i.e. doing a
hard reset of the monitor.
And yes, this makes perfect sense, because I see no commit relating to EDID
reading, parsing, or the handling of the data in the radeon driver. The only
one I see is a change for some HDMI connectors, which doesn't affect me.
Sorry for any inconvenience.
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