DRM errors when both LCD and HDMI connected

Hi,

I have both LCD and HDMI connected to board, both displays are off after 15 mins(In power management settings selected turnoff monitors in idle state) facing the below error if i try to exit from idle state(using mouse movement or key press).
https://pastebin.com/8drnXC5t

kernel- 4.14.96
build-Debian

Any idea on this?

@vinaysimha
@architt
@danielt
@Loic
@doitright

Thanks,
Arun

Is it reproducible with latest release?

@Loic
I have tried with snapshot number 382(kernel-4.14.96), is there any fixes merged recently related to this issue?

Thanks,
Arun

I don’t know but it is worth a try since latest release is based on kernel 5.4

Its on 5.7 now, actually.
http://snapshots.linaro.org/96boards/dragonboard820c/linaro/debian/latest/

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issue is seen because of deadlock(-EDEADLK)