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Screen flashing and dmesg flooded with *ERROR* [CONNECTOR:65:eDP-1] Link Training failed at link rate = 270000, lane count = 2 when psr enabled

Submitted by kitestramuort@autistici.org

Assigned to Intel GFX Bugs mailing list

Link to original bug (#108266)

Description

Created attachment 141929
dmesg output

If I enable psr with i915.enable_psr=1 the syslog is flooded by the message below and the screen blanks intermittently for a second or so.

ERROR [CONNECTOR:65:eDP-1] Link Training failed at link rate = 270000, lane count = 2

No such message is logged when psr is disabled and no flashing occurs.

This is on a Thinkpad T450s, Core i5-5300U, kernel 4.19.0-rc6, Arch Linux.

Attachment 141929, "dmesg output":
dmesg-psr.log

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