[Bug 1914535] Re: PL110 8-bit mode is not emulated correctly

[Peter Maydell]

Lucky I looked at your screenshot, as half the repro instructions are only 
given in that!
When the guest gets to a shell prompt, one needs to type:

# fbset -depth 8
# fbset
# dd if=/dev/urandom of=/dev/fb0

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https://bugs.launchpad.net/bugs/1914535

Title:
  PL110 8-bit mode is not emulated correctly

Status in QEMU:
  New

Bug description:
  When the emulated pl110/pl111 is switched programmatically to 8-bit
  color depth mode, the display is drawn green and blue, but the real
  PL110 displays grayscale in 8-bit mode.

  The bug appears in qemu-system-arm version 3.1.0 (Debian
  1:3.1+dfsg-8+deb10u8) and qemu-system-arm version 5.2.50
  (v5.2.0-1579-g99ae0cd90d).

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