Bug 209401

Summary:	arm64: display locks on rk3399 gru-kevin chromebook
Product:	Drivers	Reporter:	Milan P. Stanić (mps)
Component:	Video(DRI - non Intel)	Assignee:	drivers_video-dri
Status:	NEW ---
Severity:	normal
Priority:	P1
Hardware:	ARM
OS:	Linux
Kernel Version:	5.4 and up	Subsystem:
Regression:	No	Bisected commit-id:
Attachments:	dmesg output

Description Milan P. Stanić 2020-09-26 10:00:03 UTC

on arm64 rockchip rk3399 chromebook gru-kevin display locks at random time, sometimes few times on the day (2-3 times) but on some days it can happen 10 and more times. suspend2ram and resume unlock display and it works until next random lock.

This behavior started on linux kernel version 5.4 and up. On 5.3 and lower kernels this doesn't happen (at least I didn't noticed it anytime)

I'm attaching part from dmesg output which shows errors when the display locks and goes blank (dark).

Comment 1 Milan P. Stanić 2020-09-26 10:01:56 UTC

Created attachment 292659 [details]
dmesg output