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From: zaverel <zaverel@free.fr>
To: dri-devel@lists.freedesktop.org
Subject: [Bug 38364 ] - Ignoring invalid EDID block 1 do entire edid is invalid and not just block 1
Date: Thu, 16 Jun 2011 12:50:05 +0200	[thread overview]
Message-ID: <4DF9DFDD.8060209@free.fr> (raw)

https://bugs.freedesktop.org/show_bug.cgi?id=38364


Hello ,

All is fine except i can't change resolution on my second monitor vga
,tv in fact, (reported as DVI-I-2 ) anymore with my 9400gt.


Now , i'm on :

linux-2.6.39-gentoo-r1
xorg-server-1.10.2
xf86-video-nouveau-0.0.16_pre20110323
libdrm-2.4.25

Errors in dmesg  are:

nouveau 0000:02:00.0: DVI-I-2: Ignoring invalid EDID block 1.
[drm:drm_edid_block_valid] *ERROR* Raw EDID:
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
<3>00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................




whatever i valid with xrandr is not really do on my tv
although xrandr say it's good , my tv always report 1202x670 50hz

I tried with and without xorg.conf

My last kernel working is linux-2.6.36-gentoo-r6.



If, i tweak drm_edid.c from kernel-2.6.39-gentoo-r1 like this:

--- drm_edid.c    2011-06-10 22:37:36.605848000 +0200
+++ linux/drivers/gpu/drm/drm_edid.c    2011-06-13 13:04:43.136786102 +0200
@@ -292,7 +292,7 @@
                   block + (valid_extensions + 1) * EDID_LENGTH,
                   j, EDID_LENGTH))
                 goto out;
-            if (drm_edid_block_valid(block + (valid_extensions + 1) *
EDID_LENGTH)) {
+            if (drm_edid_block_valid(block + (valid_extensions + 0) *
EDID_LENGTH)) {
                 valid_extensions++;
                 break;
             }

  that work good  like before but i'm not sure that is safe.

More info in 
http://lists.freedesktop.org/archives/nouveau/2011-June/008548.html

I can post logs here too , just tell me.

See you

             reply	other threads:[~2011-06-16 10:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-16 10:50 zaverel [this message]
  -- strict thread matches above, loose matches on Subject: below --
2011-06-28 13:33 [Bug 38364 ] - Ignoring invalid EDID block 1 do entire edid is invalid and not just block 1 zaverel

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