[Bug 211807] [drm:drm_dp_mst_dpcd_read] *ERROR* mstb 000000004e6288dd port 3: DPCD read on addr 0x60 for 1 bytes NAKed

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=211807

Daan (daandelombaert at gmail.com) changed:

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                 CC|                            |daandelombaert at gmail.com

--- Comment #14 from Daan (daandelombaert at gmail.com) ---
I also had this in my logs yesterday, right before my system locked completely
(had to do a hard reset).

I also have a Lenovo Thinkpad Thunderbolt Dock, which connects my Thinkpad T480
with two external monitors (one Hdmi, one Displayport). I didn't have this
lockup before, in the past both monitors were hdmi so maybe Displayport is the
culprit here?

Exact message:  i915 0000:00:02.0: [drm] *ERROR* mstb 00000000afedfd20 port 3:
DPCD read on addr 0x4b0 for 1 bytes NAKed

Setup: 
Thinkpad T480, i7, UHD Graphics 620 + Nvidia Mx150
Fedora (5.14.16-201.fc34.x86_64)

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