Can't set DisplayPort output to 4k@60hz on the new Huawei Matebook 14 AMD

Just this week I got the newest Matebook 14 2020 AMD with the 4800H. On windows I'm using an UtechSmart USB-C hub to output 4K@60Hz to my monitor so physically I know it's possible. Linux, however, is another story. I installed Kubuntu 20.04 LTS, but I could only boot to it (kernel 5.4 I believe) by going into recovery mode, and then selecting continue boot. Otherwise it would just hang on the Huawei logo. I installed the 5.8.15 kernel and everything seems to work fine, except I can't seem to set the display output to 60Hz, even though it's available in the settings, confirmed also by xrandr: > Screen 0: minimum 320 x 200, current 3840 x 3600, maximum 16384 x 16384 eDP connected primary 2160x1440+783+2160 (normal left inverted right x axis y axis) 296mm x 197mm 2160x1440 60.00*+ 1920x1200 60.00 1920x1080 60.00 1600x1200 60.00 1680x1050 60.00 1280x1024 60.00 1440x900 60.00 1280x800 60.00 1280x720 60.00 1024x768 60.00 800x600 60.00 640x480 60.00 HDMI-A-0 disconnected (normal left inverted right x axis y axis) DisplayPort-0 disconnected (normal left inverted right x axis y axis) DisplayPort-1 disconnected (normal left inverted right x axis y axis) DisplayPort-2 disconnected (normal left inverted right x axis y axis) DisplayPort-3 disconnected (normal left inverted right x axis y axis) DisplayPort-4 connected 3840x2160+0+0 (normal left inverted right x axis y axis) 600mm x 340mm 3840x2160 60.00 + 30.00* 2560x1440 59.95 1920x1080 60.00 59.94 1600x900 60.00 1280x1024 60.02 1280x800 59.81 1280x720 60.00 59.94 1024x768 60.00 800x600 60.32 720x480 60.00 59.94 640x480 60.00 59.94 However, running xrandr --output DisplayPort-4 --mode 3840x2160 --rate 60, I get xrandr: Configure crtc 1 failed I assumed this has something to do with the amdgpu drivers, so I went ahead and downloaded the latest 20.30 version, however, I get the following error: Loading new amdgpu-5.6.5.24-1109583 DKMS files... Building for 5.8.15-050815-generic Building for architecture x86_64 Building initial module for 5.8.15-050815-generic ERROR (dkms apport): kernel package linux-headers-5.8.15-050815-generic is not supported Error! Bad return status for module build on kernel: 5.8.15-050815-generic (x86_64) Consult /var/lib/dkms/amdgpu/5.6.5.24-1109583/build/make.log for more information. I even tried installing it on the 5.8.1 kernel with no luck. This is where I'm stuck right now, and I'm pretty sure I wrecked the whole installation. Any insight on how to fix my problems? **UPDATE**: As of kernel version 5.15, this has been fixed!