[Stable Update] 2020-12-30 - Kernels, KDE, Cinnamon, LibreOffice, Python 3.9, Mesa 20.3.1

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Alright!

For all of you having black screen with AMD GPU with kernel 5.10

For GRUB:

  1. Open a terminal/TTY (alt+f2)
  2. Enter sudo nano /etc/default/grub
  3. Find the line: GRUB_CMDLINE_LINUX_DEFAULT="
  4. Add amdgpu.dc=0
  5. Save, then run sudo update-grub

For systemd-boot:

  1. Open a terminal/TTY (alt+f2)
  2. Enter sudo nano /boot/loader/entries/manjarolinux5.10.conf
  3. Add amdgpu.dc=0 to the end of the line options
  4. Save & reboot!

Hope this helps!
It is a bug in the latest AMD drivers…

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