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<b><a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HD Graphics 3000] frequent black screen on HDMI output"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79408#c3">Comment # 3</a>
on <a class="bz_bug_link
bz_status_NEEDINFO "
title="NEEDINFO --- - [HD Graphics 3000] frequent black screen on HDMI output"
href="https://bugs.freedesktop.org/show_bug.cgi?id=79408">bug 79408</a>
from <span class="vcard"><a class="email" href="mailto:bugintel@pounains.homeip.net" title="Mathieu <bugintel@pounains.homeip.net>"> <span class="fn">Mathieu</span></a>
</span></b>
<pre>Thank you for taking time to respond.
I forgot to mention that I've installed an older ddx to see if the problem goes
away. Now, i'm back with the most current version available in my distro
(gentoo) :
[598382.917] (II) Module intel: vendor="X.Org Foundation"
[598382.917] compiled for 1.15.0, module version = 2.99.911
[598382.917] Module class: X.Org Video Driver
[598382.917] ABI class: X.Org Video Driver, version 15.0
Also, I disabled TearFree. As a result, I now seeing tearing in the upper part
of the screen, and I still got the frequent black screen :(
Is it normal to see the EDID checksum errors ?
If I take the EDID that is dumped in the Xorg log, it is okay (checksum ok,
correct infos displayed). But I also see a some lines like that in the dmesg
output (some = 25 times in a 7 days uptime)
[599210.198083] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 207
[599210.233511] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 203
[599210.233515] Raw EDID:
[599210.233518] 00 ff ff ff ff ff ff 00 65 a8 73 31 00 00 00 00
[599210.233520] 00 16 01 03 80 00 00 78 0a 0d c9 a0 57 47 98 27
[599210.233522] 12 48 4c 00 00 00 01 01 01 01 01 01 01 01 01 01
[599210.233523] 01 01 01 01 01 01 01 1d 80 18 71 1c 16 20 58 2c
[599210.233525] 25 00 c4 8e 21 3f 3f 40 40 ff ff 00 00 00 00 00
[599210.233526] 00 00 ff ff 3d 3d ff ff 00 00 00 00 00 00 00 00
[599210.233528] 00 00 00 00 00 00 00 0a 20 20 20 20 00 00 00 fd
[599210.233530] 00 17 79 0f 5b 0f 00 0a 20 20 20 20 20 20 01 19
[599210.329346] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 94
[604459.748941] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 180
[604459.782970] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 203
[604459.782977] Raw EDID:
[604459.782980] 00 ff ff ff ff ff ff 00 65 a8 73 31 00 00 00 00
[604459.782982] 00 16 01 03 80 00 00 78 0a 0d c9 a0 57 47 98 27
[604459.782984] 12 48 4c 00 00 00 01 01 01 01 01 01 01 01 01 01
[604459.782985] 01 01 01 01 01 01 01 1d 80 18 71 1c 16 20 58 2c
[604459.782987] 25 00 c4 8e 21 3f 3f 40 40 ff ff 00 00 00 00 00
[604459.782989] 00 00 ff ff 3d 3d ff ff 00 00 00 00 00 00 00 00
[604459.782990] 00 00 00 00 00 00 00 0a 20 20 20 20 00 00 00 fd
[604459.782992] 00 17 79 0f 5b 0f 00 0a 20 20 20 20 20 20 01 19
[615317.489681] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 158
[615317.525021] [drm:drm_edid_block_valid] *ERROR* EDID checksum is invalid,
remainder is 192
[615317.525025] Raw EDID:
[615317.525028] 00 ff ff ff ff ff ff 00 65 a8 73 31 00 00 00 00
[615317.525030] 00 16 01 03 80 00 00 78 0a 0d c9 a0 57 47 98 27
[615317.525032] 12 48 4c 00 00 00 01 01 01 01 01 01 01 01 01 01
[615317.525033] 01 01 01 01 01 01 01 1d 80 18 71 1c 16 20 58 2c
[615317.525035] 25 00 c4 8e 21 00 3f 3f 40 40 ff ff 00 00 00 00
[615317.525036] 00 00 ff ff ff 3d 3d ff ff 00 00 00 00 00 00 00
[615317.525038] 00 00 00 00 00 00 00 00 20 20 20 20 00 00 00 fd
[615317.525040] 00 17 79 0f 5b 0f 00 0a 20 20 20 20 20 20 01 19</pre>
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