From: Csepp <raingloom@riseup.net>
To: Hugo Buddelmeijer <hugo@buddelmeijer.nl>
Cc: 66651@debbugs.gnu.org
Subject: bug#66651: How to pass i915.enable_guc=0 in config.scm to prevent a 'wedged' GPU?
Date: Fri, 20 Oct 2023 20:38:30 +0200 [thread overview]
Message-ID: <cuco7gtdtm9.fsf@riseup.net> (raw)
In-Reply-To: <CA+Jv8O2G0g_022ctO4+ncVxgwShPQgV6xiQHXrh1fFP8gXBcKg@mail.gmail.com>
Hugo Buddelmeijer <hugo@buddelmeijer.nl> writes:
> The i915 driver will try to load the GuC firmware, at least for Iris
> Xe chips. Loading the GuC firmware fails because it is non-free and
> deblobbed. As a result, some software, like sway, will not work.
>
> It is possible to manually pass the i915.enable_guc=0 kernel parameter
> at boot from grub. Then everything works as intended. However, it
> seems not possible to set this parameter from config.scm.
>
> So at the moment my system is not fully declarative, as I have to type
> in a kernel parameter at boot; does anyone perhaps have advice on how
> can this be done better?
> ...
You can use the kernel-arguments option in the operating-system config.
Untested:
(kernel-arguments (cons "i915.enable_guc=0" %default-kernel-arguments))
This should work, in theory.
I suspect that the sysctl thing doesn't work because it is done too late
in the boot process.
next prev parent reply other threads:[~2023-10-20 18:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-20 17:42 bug#66651: How to pass i915.enable_guc=0 in config.scm to prevent a 'wedged' GPU? Hugo Buddelmeijer
2023-10-20 18:38 ` Csepp [this message]
2023-10-20 19:39 ` bug#66651: Hugo Buddelmeijer
2023-10-20 20:56 ` bug#66651: Tobias Geerinckx-Rice via Bug reports for GNU Guix
2023-10-20 22:35 ` bug#66651: Maxim Cournoyer
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