[Yoshino] [Lilac] Panel doesn't wake up after sleep

[stblr]

Platform: Yoshino
Device: Lilac
Kernel version: 4.14.167
Android version: 10 r21
Software binaries version: v3

Previously working on
Supposedly kernel 4.9

Description
When pressing the power button for the first time, the screen is correctly turned off. When pressing the power button again, the backlight turns on shortly (0.5 s or so), then turns off, then turns on again for the expected time (5 s I think). But the panel itself stays black.

Additional context
dmesg
logcat

The relevant part of the dmesg is probably this:

[   70.221287] [drm:sde_crtc_atomic_begin:3765] [sde error]border fill only commit after ctlstart timeout
[   70.449153] msm-dsi-display:[dsi_display_status_check_te] TE check failed
[   70.449280] [drm:_sde_connector_report_panel_dead:1914] [sde error]esd check failed report PANEL_DEAD conn_id: 28 enc_id: 27
[   70.453515] dsi-ctrl:[dsi_ctrl_handle_error_status] dsi FIFO UNDERFLOW error: 0xf08000
[   70.455064] [drm:sde_encoder_phys_cmd_prepare_for_kickoff:1390] [sde error]failed wait_for_idle: -110

Similar issues are #449 and #534.

[stefanhh0]

Pretty sure that this is a duplicate report to: #534. Can confirm the behavior.

[stblr]

I'm closing this one then.