Re: [drm] *ERROR* mstb 0000000057b5b857 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed

2022-02-22 Thread Lyude Paul
On Thu, 2022-02-17 at 23:07 +0100, Jocelyn Falempe wrote: > On 17/02/2022 19:15, Lyude Paul wrote: > > Hi! Sorry for the late reply, I had to take some time off work > > unexpectedly. > > This is normal (although not great TBH, I'm not sure we should be printing > > an > > error message for that),

Re: [drm] *ERROR* mstb 0000000057b5b857 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed

2022-02-17 Thread Jocelyn Falempe
On 17/02/2022 19:15, Lyude Paul wrote: Hi! Sorry for the late reply, I had to take some time off work unexpectedly. This is normal (although not great TBH, I'm not sure we should be printing an error message for that), it's the result of fwupd trying to probe the MST hub to see if it's a

Re: [drm] *ERROR* mstb 0000000057b5b857 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed

2022-02-17 Thread Lyude Paul
Hi! Sorry for the late reply, I had to take some time off work unexpectedly. This is normal (although not great TBH, I'm not sure we should be printing an error message for that), it's the result of fwupd trying to probe the MST hub to see if it's a specific Dell dock that can receive updates over

Re: [drm] *ERROR* mstb 0000000057b5b857 port 1: DPCD read on addr 0x4b0 for 1 bytes NAKed

2022-02-17 Thread Michel Dänzer
On 2022-02-16 15:39, Jocelyn Falempe wrote: > Hi, > > When using a Lenovo dock, I often get this error message on dmesg: > > [drm] *ERROR* mstb 57b5b857 port 1: DPCD read on addr 0x4b0 for 1 > bytes NAKed > > It's caused by fwupd which tries to read from /dev/drm_dp_aux4 > > I opened