https://bugzilla.kernel.org/show_bug.cgi?id=112061
Bug ID: 112061 Summary: DisplayPort on Thinkpad T500 AMD 3650 gpu stopped working Product: Drivers Version: 2.5 Kernel Version: 4.4.1 Hardware: x86-64 OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: pavol@klacansky.com Regression: No
As of upgrade to 4.4.1 the displayport output stopped working. I am using DPM and it worked with 4.4.0-r1 and previous kernels.