** Changed in: linux-hwe-6.2 (Ubuntu)
Status: New => Incomplete
** Changed in: linux-hwe-6.2 (Ubuntu)
Status: Incomplete => Fix Committed
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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:
Triaged
Status in linux-hwe-5.19 package in Ubuntu:
Won't Fix
Status in linux-hwe-6.2 package in Ubuntu:
Fix Committed
Status in linux source package in Lunar:
Fix Committed
Bug description:
SRU Justification:
[ Impact ]
On systems that have the following combination of hardware
1) arm64 CPU
2) ASPEED AST2600 BMC: https://www.aspeedtech.com/server_ast2600/
No output when connecting a display to the BMC's VGA port.
[ Fix ]
For AST2500+ MMIO should be enabled by default.
[ Test Plan ]
Test on targeted hardware to make sure BMC is displaying output.
[ Where problems could occur ]
Not aware of any potential problems, but any should be confined to
ASPEED AST2500+ hardware.
[ Other Info ]
Patch is already in jammy/nvidia-5.19 and jammy/nvidia-6.2 and has
been tested with affected BMC.
[Issue]
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
[Action]
Please apply the following two backports to the appropriate Ubuntu HWE
kernels:
https://github.com/NVIDIA-BaseOS-6/linux-nvidia-5.19/commit/055c9ec3739d7df1179db3ba054b00f3dd684560
https://github.com/NVIDIA-BaseOS-6/linux-nvidia-6.2/commit/8ab3253c6a59eee3424fe0c60b1fc6dc9f2d73b7
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