Public bug reported:

Hello,

On systems that have the following combination of hardware...:

1) arm64 CPU
2) ASPEED AST2600 BMC: https://www.aspeedtech.com/server_ast2600/

.. we see no output when connecting a display to the BMC's VGA port.

Upon further investigation, we see that applying the following patch
fixes this issue:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/ast?h=v6.4-rc6&id=4327a6137ed43a091d900b1ac833345d60f32228

Would it be possible to apply this patch to affected kernels?  Using the
aforementioned combination, the ast driver is broken without this patch.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Project changed: snap-octavia-diskimage-retrofit => linux

** Project changed: linux => linux (Ubuntu)

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https://bugs.launchpad.net/bugs/2026776

Title:
  arm64+ast2600: No Output from BMC's VGA port

Status in linux package in Ubuntu:
  New

Bug description:
  Hello,

  On systems that have the following combination of hardware...:

  1) arm64 CPU
  2) ASPEED AST2600 BMC: https://www.aspeedtech.com/server_ast2600/

  .. we see no output when connecting a display to the BMC's VGA port.

  Upon further investigation, we see that applying the following patch
  fixes this issue:
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/ast?h=v6.4-rc6&id=4327a6137ed43a091d900b1ac833345d60f32228

  Would it be possible to apply this patch to affected kernels?  Using
  the aforementioned combination, the ast driver is broken without this
  patch.

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