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

Summary: Ignoring invalid EDID block 1 do entire edid is invalid and not just block 1 Product: DRI Version: XOrg CVS Platform: x86-64 (AMD64) OS/Version: All Status: NEW Severity: normal Priority: medium Component: General AssignedTo: dri-devel@lists.freedesktop.org ReportedBy: zaverel@free.fr

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