Created attachment 295705 [details] kernel config My hardware is a Pine64 Pinebook, which has an Analogix ANX6345 eDP bridge. Starting with the 5.11 series, the screen fails to turn on after suspend, producing the error: '[drm:anx6345_bridge_enable] *ERROR* Failed eDP transmitter initialization: -13'. Steps to reproduce: 1) boot series 5.11 kernel on the Pinebook 2) close lid 3) open lid. Actual results: the display does not turn on. Expected results: the display turns on. Build date & hardware: 2021-03-07 on Arch Linux (x86-64 cross compile), run on a Pine64 Pinebook. Additional information: the latest 5.10 kernel (5.10.21) compiled with the same config does not exhibit the bug.
Created attachment 295707 [details] dmesg log ending immediately after bug in question
Additional information: the 5.10 and 5.11 series appear to attempt different suspends: the 5.10 enters "s2idle" suspend, while the 5.11 enters "deep" suspend.