https://bugzilla.kernel.org/show_bug.cgi?id=211807
Daan (daandelombaert@gmail.com) changed:
What |Removed |Added ---------------------------------------------------------------------------- CC| |daandelombaert@gmail.com
--- Comment #14 from Daan (daandelombaert@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)