On 12/06/2019 00:58, Marc Espie wrote:
I think this is generic enough to belong on misc@
----- Forwarded message from Mark Kettenis <mark.kette...@xs4all.nl> -----
Date: Tue, 11 Jun 2019 19:54:04 +0200 (CEST)
From: Mark Kettenis <mark.kette...@xs4all.nl>
To: t...@openbsd.org
Subject: Check your machdep.allowaperture setting
These days most OpenBSD users should have the machdep.allowaperture
sysctl set to 0 (the default). Having it set to seomething else poses
security risks and can actually cause problems, in particular on
systems that have multiple GPUs where one of tha GPUs is supported by
inteldrm(4) or radeondrm(4) and the other isn't.
You'll only need to set machdep.allowaperture to a non-zero value if
inteldrm(4) or radeordrm(4) doesn't attach on your machine and you
can't use efifb(4) either.
----- End forwarded message -----
Well if you need brightness settings on current intel gpus via
intel_backlight, it has to be set at 3 with no way around it. For
laptops you're in trouble I guess!
