@xpusostomos Thanks for adding to this bug report. Interesting, a similar message
``` [ 537.010093] [drm:drm_dp_send_dpcd_read [drm_kms_helper]] *ERROR* mstb 00000000271ba325 port 1: DPCD read on addr 0x60 for 1 bytes NAKed ``` also appears in my log, however, only right after plugging in the screen via HDMI. This message did not appear after plugging in the screen via Display Port. In my case I am using the USB-C dock for keyboard, mouse, and webcam. I have very seldomly had issues where mouse and keyboard stopped working. Perhaps three to five times over the last seven months at daily full- time use. In some instances they started working again after un- and replugging the devices, or just waiting for a few minutes. However, I cannot say whether this is related to the dock or some other issue. Similarly, I have only very rarely had the machine freeze and cannot say whether this was related to the dock or not. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1908139 Title: ThinkPad T14s external display not working on ThinkPad USB-C Dock Gen2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1908139/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
