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<body><span class="vcard"><a class="email" href="mailto:fabio.ped@libero.it" title="Fabio Pedretti <fabio.ped@libero.it>"> <span class="fn">Fabio Pedretti</span></a>
</span> changed
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - screen corruption after going from VT to X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76559">bug 76559</a>
<br>
<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Component</td>
<td>DRM/Radeon
</td>
<td>General
</td>
</tr></table>
<p>
<div>
<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - screen corruption after going from VT to X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76559#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - screen corruption after going from VT to X"
href="https://bugs.freedesktop.org/show_bug.cgi?id=76559">bug 76559</a>
from <span class="vcard"><a class="email" href="mailto:fabio.ped@libero.it" title="Fabio Pedretti <fabio.ped@libero.it>"> <span class="fn">Fabio Pedretti</span></a>
</span></b>
<pre>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.</pre>
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