From: "Ludovic Courtès" <ludo@gnu.org>
To: "pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de>
Cc: 36786@debbugs.gnu.org
Subject: bug#36786: Warn of AMD GPUs unusable with Guix System
Date: Fri, 26 Jul 2019 17:56:23 +0200 [thread overview]
Message-ID: <87o91glrh4.fsf@gnu.org> (raw)
In-Reply-To: <20190726055704.vev4wy56q5osznzi@pelzflorian.localdomain> (pelzflorian@pelzflorian.de's message of "Fri, 26 Jul 2019 07:57:04 +0200")
Hi Florian,
"pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> skribis:
> On Fri, Jul 26, 2019 at 01:04:40AM +0200, Ludovic Courtès wrote:
>> What about adding a few words under “Hardware Considerations”?
Oops, I hadn’t seen your patch when I replied.
> While my patch before addresses AMD-specific tweaks in the manual
> under Hardware Considerations, it is not enough if on the *download
> page* Guix is claimed to run on “an i686, x86_64, ARMv7, or AArch64
> machine“ without saying linux-libre *on some hardware, is not
> supported* and referencing the Hardware Considerations section and
> h-node, I think.
Well, ‘Limitations’ and ‘Hardware Considerations’ are the first sections
one see when following ‘Installation Instructions’ at
<http://guix.gnu.org/download/>. We can always move things one level
higher, but eventually everything ends up at the top level. :-)
> >From e88ee68c09266e1d09d24ff0d1b6ec6a4708841b Mon Sep 17 00:00:00 2001
> From: Florian Pelz <pelzflorian@pelzflorian.de>
> Date: Wed, 24 Jul 2019 23:02:21 +0200
> Subject: [PATCH] doc: Mention AMD Radeon workaround when TTYs are not redrawn.
>
> * doc/guix.texi (Hardware Considerations): Describe workaround.
[…]
> +Some hardware requires specific tweaks to work better with Guix System. The
> +following is an incomplete list of known workarounds:
> +
> +@itemize
> +@item
> +Some @emph{AMD Radeon} graphics cards stop redrawing the virtual console TTYs
> +when booting because of an error with Kernel Mode Setting. The problem
> +disappears when blacklisting the kernel module for the driver. To do so, you
> +can add @code{modprobe.blacklist=radeon} to the Linux-libre kernel flags,
> +either for only one boot by pressing the @kbd{e} key in the GRUB bootloader
> +and adding this kernel flag to the end of the @code{linux} command-line, or
> +permanently by changing the @code{kernel-arguments} field in your
> +@code{operating-system} declaration, e.g.:
> +
> +@example
> +(kernel-arguments '("quiet" "modprobe.blacklist=radeon"))
> +@end example
> +@end itemize
I think this doesn’t fit well here: the previous paragraphs are about
RYF, h-node.org, and the more general issue.
Like Ricardo wrote, since this is not Guix-specific, it would be great
if we could link to other resources on this topic. Are you aware of any
such on-line resource?
If there’s no such thing, then we should definitely add this
information, but perhaps we should move the paragraph a bit higher (next
to Wifi), and possibly turn Wifi into an item of this list. WDYT?
Thanks,
Ludo’.
next prev parent reply other threads:[~2019-07-26 15:57 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-24 14:56 bug#36786: Warn of AMD GPUs unusable with Guix System pelzflorian (Florian Pelz)
2019-07-24 15:42 ` pelzflorian (Florian Pelz)
2019-07-24 17:53 ` pelzflorian (Florian Pelz)
2019-07-24 19:05 ` Ricardo Wurmus
2019-07-24 21:22 ` pelzflorian (Florian Pelz)
2019-07-25 23:04 ` Ludovic Courtès
2019-07-26 5:57 ` pelzflorian (Florian Pelz)
2019-07-26 15:56 ` Ludovic Courtès [this message]
2019-07-26 20:03 ` pelzflorian (Florian Pelz)
2021-12-07 17:42 ` Denis 'GNUtoo' Carikli
2022-11-15 23:28 ` pelzflorian (Florian Pelz)
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