Re: [PATCH 2/2] drm: add fallback override/firmware EDID modes workaround

On Sat, 2019-06-08 at 13:10 +0800, Paul Wise wrote:

I've tested these two patches on top of Linux v5.2-rc3 and the EDID override works correctly on an Intel Ironlake GPU with a monitor that lost its EDID a while ago.

While testing I noticed a couple of things:

While everything the GUI is the correct resolution, GNOME is unable to identify the monitor vendor or model. This is a regression from the previous edid override functionality. It looks like this is because the edid file in /sys is not populated with the EDID override data.

I got a crash due to null pointer dereference at one point, I'll try to track down when this happens.