Created attachment 74681 [details] lspci -vnn an output via lvds is offered. the mainboard(elitegroup TIGT 1) however does only have a vga connector. according to the manufacturer(http://www.ecs.com.tw/ECSWebSite/Product/Product_Detail.aspx?DetailID=1094&CategoryID=1&DetailName=Feature&MenuID=17&LanID=0) there is an optional lvds connector. using debian there are currently two different behaviours: - the resolution is limited to 1024x768 (linux-image-3.2.0-4-amd64/testing) - no output via vga (linux-image-3.7-trunk-amd64/experimental) both times xserver-xorg-video-intel(2.20.14-1) from debian experimental was used
We need your dmesg from boot, preferably with the drm.debug=6 kernel parameter.
Created attachment 74689 [details] drm.debug=6
Ok, so there is definitely an LVDS header on that board that is alive and kicking. The manufacturer has chosen to also declare the LVDS as present through the VBT. I don't think we can apply a quirk here as there will be identical mainboards with a valid LVDS. There is nothing you can do but add video=LVDS-1:d to your kernel parameters. s/WONTFIX/CANTFIX/
That kernel option should also give you working VGA again (it seems to pick a different resolution in 3.7 which your screen probably doesn't like). If that (or manually adjusting the resolution with xrandr/xorg.conf) doesn't bring VGA back, please reopen. Since that should be a bug we very well can fix ;-)
You need to refresh the dmesg and Xorg.log after applying the video=LVDS-1:d
Created attachment 74821 [details] refresh dmesg video=LVDS-1:d
Created attachment 74822 [details] refresh Xorg.log
Does the BIOS ever light up the VGA monitor?
yes, the vga monitor gets lighted up by the bios.
So to clarify: With the lvds quirk applied to the kernel cmdline, VGA still doesn't light up properly? The kernel now again selects the right mode ...
(In reply to comment #10) > So to clarify: With the lvds quirk applied to the kernel cmdline, VGA still > doesn't light up properly? The kernel now again selects the right mode ... using LVDS-1:d seems to work fine(e.g. correct resolution)
Ok, setting back to CANTFIX since there's not really anything we can do here :(
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