Hi, same error occur to me. Dell XPS 17 9710. Ubuntu 22.04, Wayland.

```
[387809.776955] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000586103bb port 3: 
DPCD read on addr 0x4b0 for 1 bytes NAKed
[387809.782229] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000586103bb port 1: 
DPCD read on addr 0x4b0 for 1 bytes NAKed
[387809.794145] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000586103bb port 3: 
DPCD read on addr 0x4b0 for 1 bytes NAKed
[387809.799458] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000586103bb port 1: 
DPCD read on addr 0x4b0 for 1 bytes NAKed
[387809.810277] i915 0000:00:02.0: [drm] *ERROR* mstb 00000000586103bb port 3: 
DPCD read on addr 0x4b0 for 1 bytes NAKed
```

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https://bugs.launchpad.net/bugs/1970495

Title:
  Window manager freezes when plugging in USB-C dock with external
  monitor ([drm] *ERROR* mstb 00000000f21f0a30 port 1: DPCD read on addr
  0x4b0 for 1 bytes NAKed)

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