The GPU chip on my motherboard died, and so I plugged in a cheap
video card, a maxsun AMD Radeon R5 220 2GB Graphics Card. As the
result my resolution is locked at 1024 x 768, which makes work
very difficult. 

$ xrandr
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1024 x 768, current 1024 x 768, maximum 1024 x 768
default connected 1024x768+0+0 0mm x 0mm
   1024x768      76.00*

The graphics card supports my desired resolution of 1920x1080, but it
is not accessible. 

The module is loaded:

  $ lsmod
  ...
  video    65536  2 amdgpu,radeon

I tried several things:

  I put the statement xrandr --output HDMI-1 --mode 1920x1080
  in my .Xresources file.

  I have modified the line in /etc/default/grub to be
  GRUB_CMDLINE_LINUX_DEFAULT="quiet i915.alpha_support=1"

  I uncommented this line /etc/default/grub and changed it so
  GRUB_FXMODE=1920x1080

I have several questions

  Is there something in BIOS I need to change with the switch to
  a graphics card. I didn't see it.

  Was my choice of card unwise? Is buying a new and better card
  a good idea?

  What inexpensive Intel or Radeon card can someone recommend that
  is known to work?

-- 

  Haines Brown

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