Manjaro Arm has been working pretty well for me so far on my Pinebook Pro. I installed in January without X, opting for Wayland and Sway. In April, my System stopped getting updates, so I was stuck on linux-pinebookpro-56 iirc. Two days ago, I changed the Mirrors to the correct ones and updated everything at once.
This worked kinda fine, except that now, on linux-58 mainline, USB-C DP-Altmode with my USB-C to HDMI adapter has stopped working.
When I use Sway on Wayland, swaymsg -t get_outputs only shows the internal Display adapter eDP-1. On Gnome with X, xrandr also shows DP-1, but always lists it as “Disconnected”.
It definitely is not a hardware fault, booting Kali Linux from an SD-card worked fine with an external display.
dmesg -w only shows the USB-Billboard-device being recognized and one other line:
cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work [rockchipdrm]] Not connected. Disabling cdn
Does anyone have a clue what I could do to fix this behaviour? I don’t know whether the Kernel is at fault here, because linux 5.7.1 from Kali Linux worked fine and theoretically, this issue with the DP-Altmode not working should have been resolved, according to this discussion.
It would be really great to find a workaround of some kind, because I am kind of dependent on using an external monitor for my work.
This seems to be a known problem, as mentioned in this thread.
I guess I will see whether I can downgrade my kernel to linux 5.7
Yes this mirror is out of sync, good observation, but some time it will sync that is the reason we have brought back the old package, I will check with the team and see if we can use linux-aarc64-5.7.8 as long as dp-alt mode works on it.