Hi Greg,
Am 22.10.2025 um 07:28 schrieb Greg Kroah-Hartman:
On Wed, Oct 22, 2025 at 06:49:21AM +0200, Thorsten Leemhuis wrote:
On 10/21/25 21:50, Greg Kroah-Hartman wrote:
6.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Thomas Zimmermann <[email protected]>
commit 6f719373b943a955fee6fc2012aed207b65e2854 upstream.
Blank the display by disabling sync pulses with VGACR17<7>. Unblank
by reenabling them. This VGA setting should be supported by all Aspeed
hardware.
TWIMC, a regression report about 6.18-rc2 that was bisected to this
commit just came in:
https://lore.kernel.org/all/[email protected]/
To quote:
"""
I have encountered a serious (for me) regression with 6.18-rc2 on my
2-socket Ivy Bridge Xeon E5-2697 v2 server. After
booting, my console screen goes blank and stays blank. 6.18-rc1 was
still fine.
[...]
When I revert this from 6.18-rc2, the issue goes away and my console
screen works again.
"""
Thanks, I'll go drop this patch from the stable queues for now.
greg k-h
So Thorsten (thanks!) was 20 minutes quicker ;-) But I just tested this with 6.12.55-rc1 and 6.17.5-rc1, too, and can
confirm that this offending patch breaks VGA on my machine, and that reverting just this patch against either RC makes
the issue go away.
I'll retest -rc2 too when it's out.
Beste Grüße,
Peter Schneider
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