USB-C dock

[notthetup]

Hi folks,

Just got my hands on the PBP. Starting to play around. I'm on the default Debian image.

I have a UGreen USB-C Dock (HDMI+VGA+ETH+SD+3xUSB3+USBC) https://www.ugreen.com/product/1324-en.html

I am able to get the Ethernet and USB3 connections no problem, but I can't seem to detect my external monitor.

Looking at dmesg I see the following when I plug in the dock.

Code:

[  846.416516] fusb302 4-0022: CC connected in CC1 as UFP [  846.420458] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  846.554795] fusb302 4-0022: PD connected as UFP, fetching 5V [  846.558223] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.160746] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.202828] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.230405] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.236317] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.245765] fusb302 4-0022: DP config successful, pin_assignment 0x8 [  847.245956] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Not connected. Disabling cdn [  847.758078] fusb302 4-0022: attention, dp_status 9a [  847.758702] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn [  847.892359] usb 3-1: new high-speed USB device number 16 using xhci-hcd [  847.951747] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  847.968348] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  847.985346] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.000539] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.014585] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.031381] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.048351] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.065469] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.082395] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.099701] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.116455] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.117926] usb 3-1: New USB device found, idVendor=2109, idProduct=2817 [  848.117950] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [  848.117963] usb 3-1: Product: USB2.0 Hub [  848.117976] usb 3-1: Manufacturer: VIA Labs, Inc. [  848.132901] hub 3-1:1.0: USB hub found [  848.133482] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.133521] hub 3-1:1.0: 4 ports detected [  848.150743] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.167363] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.184420] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.201381] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.218380] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.235417] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.250389] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.267383] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.284392] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.301495] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.318379] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.335372] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.352408] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.369397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.386461] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.403438] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.420919] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.437468] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.454702] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.471707] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.488384] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.505373] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.522435] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.539097] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.555580] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.572854] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.589552] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.606426] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.623405] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.640429] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.657686] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.674484] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.691664] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.708789] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.725398] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.742400] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.757414] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.774181] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.792384] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.809427] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.826635] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.843630] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.861042] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.878508] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.895397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.911839] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.929054] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.946278] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.963378] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.966532] usb 3-1.3: new full-speed USB device number 17 using xhci-hcd [  848.980383] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  848.997361] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.014443] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.031424] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.048189] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.065413] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.082397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.099841] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.116861] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.134038] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.150749] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.167635] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.184423] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.201372] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.206287] usb 3-1.3: New USB device found, idVendor=1209, idProduct=5bf0 [  849.206313] usb 3-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [  849.206452] usb 3-1.3: Product: Fomu DFU Bootloader v1.8.7 [  849.206467] usb 3-1.3: Manufacturer: Foosn [  849.218401] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.235605] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.252452] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.266397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.281613] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.298661] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.315443] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.332435] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.349494] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.366737] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.383395] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.395828] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.412076] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.428218] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.432563] usb 3-1.4: new high-speed USB device number 18 using xhci-hcd [  849.444888] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.461244] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.478422] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.495294] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.512203] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.536384] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.553479] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.570130] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.586916] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.603141] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.620204] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.637413] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.655005] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.671528] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.678948] usb 3-1.4: New USB device found, idVendor=0bda, idProduct=5412 [  849.678963] usb 3-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0 [  849.678970] usb 3-1.4: Product: 4-Port USB 2.0 Hub [  849.678977] usb 3-1.4: Manufacturer: Generic [  849.688397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.700741] hub 3-1.4:1.0: USB hub found [  849.701291] hub 3-1.4:1.0: 2 ports detected [  849.705371] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.719427] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.736480] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.753504] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.770159] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.786491] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.803447] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.820684] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.837371] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.854592] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.871422] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.888425] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.905567] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.922379] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.939701] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.956390] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.973719] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  849.990590] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.007547] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.024457] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.041855] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.058573] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.075432] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.092522] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.107390] usb 3-1.4.1: new high-speed USB device number 19 using xhci-hcd [  850.109421] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.126572] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.150392] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.167526] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.185418] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.203059] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.220754] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.238406] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.256965] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.273578] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.290663] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.297584] usb 3-1.4.1: New USB device found, idVendor=0b95, idProduct=1790 [  850.297610] usb 3-1.4.1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [  850.297623] usb 3-1.4.1: Product: AX88179 [  850.297635] usb 3-1.4.1: Manufacturer: ASIX Elec. Corp. [  850.297647] usb 3-1.4.1: SerialNumber: 0000000000026C [  850.306945] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.323387] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.339739] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.356140] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.372567] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.388941] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.405485] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.422769] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.439166] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.455643] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.472428] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.489106] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.505508] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.521914] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.535637] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.548654] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.565688] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.582917] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.599813] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.616734] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.633667] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.649510] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.662191] ax88179_178a 3-1.4.1:1.0 eth0: register 'ax88179_178a' at usb-xhci-hcd.2.auto-1.4.1, ASIX AX88179 USB 3.0 Gigabit Ethernet, 00:0e:c6:c6:7a:83 [  850.668413] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.685483] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.702395] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.720939] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.737559] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.754848] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.771822] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.788516] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.805642] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.823179] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.840404] usb 3-1.4.2: new high-speed USB device number 20 using xhci-hcd [  850.840494] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.860411] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.877809] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.894978] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.911818] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.928858] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.945713] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.962831] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.979451] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  850.996410] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.013593] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.021400] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [  851.030400] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.033137] usb 3-1.4.2: New USB device found, idVendor=05e3, idProduct=0749 [  851.033162] usb 3-1.4.2: New USB device strings: Mfr=3, Product=4, SerialNumber=5 [  851.033175] usb 3-1.4.2: Product: USB3.0 Card Reader [  851.033188] usb 3-1.4.2: Manufacturer: Generic [  851.033199] usb 3-1.4.2: SerialNumber: 000000001536 [  851.035932] usb-storage 3-1.4.2:1.0: USB Mass Storage device detected [  851.036522] usb-storage 3-1.4.2:1.0: Quirks match for vid 05e3 pid 0749: 520 [  851.036844] scsi host3: usb-storage 3-1.4.2:1.0 [  851.047416] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.064412] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.085317] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.091035] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [  851.102411] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.119389] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.138055] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.155578] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.172397] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.189171] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.205585] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.222036] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.238356] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.255181] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.271592] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.288748] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.305817] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.323074] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.339522] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.356565] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.373469] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.390445] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.407477] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.424516] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.446461] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.464413] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.482303] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.499100] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.516709] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.534576] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.552771] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.570443] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.591428] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.609402] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.627064] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.643439] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.660578] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.677399] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.694583] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.711470] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.728425] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.745611] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.763547] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.780424] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.797626] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.815445] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.833432] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.852479] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.875427] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.893420] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.912134] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.930529] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.947727] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.964579] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.982930] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  851.999410] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.019440] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.037426] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.042006] scsi 3:0:0:0: Direct-Access     Generic  MassStorageClass 1536 PQ: 0 ANSI: 6 [  852.043527] scsi 3:0:0:1: Direct-Access     Generic  MassStorageClass 1536 PQ: 0 ANSI: 6 [  852.056424] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.073028] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.089444] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.106219] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.122621] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.139373] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.153605] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.167677] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.184573] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.202653] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.220250] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.237481] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.254609] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.271644] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.288627] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.305782] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.322727] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.340566] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.358069] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.374673] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.391666] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.408758] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.425804] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.442733] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.459436] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.476708] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.493738] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.510667] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.527500] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.544517] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.561771] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.578663] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.594982] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.611493] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.628472] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.645917] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.659914] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.676439] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.693655] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.710450] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.727445] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.742461] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.759290] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.776063] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.792423] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.809198] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.825684] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.842517] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.859446] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.868904] sd 3:0:0:0: [sda] Attached SCSI removable disk [  852.873565] sd 3:0:0:1: [sdb] Attached SCSI removable disk [  852.876228] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.893691] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.910791] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.927488] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.944733] cdn-dp fec00000.dp: [drm:cdn_dp_dpcd_read] *ERROR* dpcd read failed: -22 [  852.955737] cdn-dp fec00000.dp: [drm:cdn_dp_check_sink_connection] *ERROR* Get sink capability timed out [  852.955817] cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] *ERROR* Enable dp failed -19 [  854.084232] ax88179_178a 3-1.4.1:1.0 eth0: ax88179 - Link status is: 1

Any ideas what could be causing this dpcd read failed?