On Tue, Apr 28, 2015 at 11:46:59AM +0100, Patrick Welche wrote: > In ancient pre-KMS times, I was able to get a particular pineview-based > (Atom D525) desktop computer & monitor to run at decent resolutions. > Recently, I have tried the 2.99.917 snapshot, and the best I can > manage is 1024x768. > > Bad parts of the system are: > - the monitor's EDID is invalid > - it presents a > - low resolution LVDS connected to a DVI socket(!) > - a high resolution VGA connector > > It used to be sufficient simply to > > Section "Monitor" > Identifier "VGA" > Option "Ignore" "false" > EndSection > > Section "Monitor" > Identifier "LVDS" > Option "Ignore" "true" > EndSection > > Section "Monitor" > Identifier "LVDS-1" > Option "Ignore" "true" > EndSection > > in xorg.conf. > > > How is the connector / resolution meant to be selected (what are the rules)? If we cannot inherit a config, one is chosen such that a similar pixel size is presented across all outputs - a "cloned" config. > Any hints on where to look / how to improve the situation? First try kernel cmdline video=LVDS-1:d to disable the spurious LVDS-DVI connection (I am sorry it will never work with the current code without some hacks as we stongly expect a LVDS connection to be a laptop panel). To fixup the missing EDID, either find a genuine one for your panel (or fake one) and use drm_kms_helper.edid_firmware=VGA-1:my-edid.bin or provide sufficent Modelines in either your xorg.conf or through xrandr. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
