Bug 100557

Summary: Dell XPS 15 (9550) can't output to a projector
Product: DRI Reporter: Timo Aaltonen <tjaalton>
Component: DRM/IntelAssignee: Intel GFX Bugs mailing list <intel-gfx-bugs>
Status: CLOSED INVALID QA Contact: Intel GFX Bugs mailing list <intel-gfx-bugs>
Severity: normal    
Priority: medium CC: intel-gfx-bugs
Version: XOrg git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: SKL i915 features:
Attachments:
Description Flags
dmesg dump none

Description Timo Aaltonen 2017-04-04 14:47:52 UTC 
Created attachment 130670 [details]
dmesg dump

using drm-tip from yesterday and latest bios (1.2.19) hotplugging a Panasonic projector fails, dmesg shows "EDID is invalid" but it works on a BDR laptop just fine.
Comment 1 Timo Aaltonen 2017-04-04 16:20:58 UTC 
another thing I noticed is that running 'xrandr --auto' does nothing with drm-tip, while it allowed the projector to be used with previous kernels
Comment 2 Timo Aaltonen 2017-04-10 12:29:31 UTC 
couldn't reproduce the next day..

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.