| Summary: | Kernel hangs when trying to use DisplayPort 1.2 MST on a Macbook Pro Retina 13' 12,1 with Dell U2414H | ||||||
|---|---|---|---|---|---|---|---|
| Product: | DRI | Reporter: | Ricardo Salveti de Araujo <rsalveti> | ||||
| Component: | DRM/Intel | Assignee: | Clinton Taylor <clinton.a.taylor> | ||||
| Status: | CLOSED WORKSFORME | QA Contact: | Intel GFX Bugs mailing list <intel-gfx-bugs> | ||||
| Severity: | normal | ||||||
| Priority: | medium | CC: | intel-gfx-bugs | ||||
| Version: | DRI git | ||||||
| Hardware: | Other | ||||||
| OS: | All | ||||||
| Whiteboard: | |||||||
| i915 platform: | BDW | i915 features: | display/DP MST | ||||
| Attachments: |
|
||||||
Please try current drm-intel-nightly branch of http://cgit.freedesktop.org/drm-intel DisplayPort MST code in the i915 driver has been reworked to solve many of these types of problems. Please retest with the latest drm-intel-nightly branch of http://cgit.freedesktop.org/drm-intel. Timeout. Marking this resolved+worksforme. No reply from reporter if problem is still valid. Please reopen if need to be. |
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.
Created attachment 118660 [details] Syslog with logs from 2 boots, first when I got the hang, and second when it worked but at 1024x768 When trying to use my Dell U2414H with DisplayPort MST enabled, it either hangs, or it works partially at 1024x768. My system: Architecture: amd64 DistroRelease: Ubuntu 15.10 MachineType: Macbook Pro Retina 13' 12,1 PackageArchitecture: amd64 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-4.3.0-994-generic root=UUID=18d6ce44-8181-4fa9-b3f8-c5bda84f3d80 ro quiet splash drm.debug=0x06 vt.handoff=7 cod/tip/drm-intel-nightly/2015-10-02 eb69e51ab8c85257b6475053ac86200b423c5b68