nouveau Ignoring invalid EDID block 1 xrandr can't change resolution on monitor two (dualdisplay)

Hello I tweak drm_edid.c and now that work like before but i 'm not sure that is safe. New logs with the tweak see you -- next part -- An embedded and charset-unspecified text was scrubbed... Name: dmesg_log URL:

nouveau Ignoring invalid EDID block 1 xrandr can't change resolution on monitor two (dualdisplay)

Hello , All is fine except i can't change resolution on my second monitor vga (reported as DVI-I-2 ) (tv in fact) 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 whatever i valid with xrandr is not really do o