lkml.org 
[lkml]   [2021]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH v3 5/6] Documentation/admin-guide: Document nomodeset kernel parameter
From
Hi

Am 08.11.21 um 13:15 schrieb Javier Martinez Canillas:
> The nomodeset kernel command line parameter is not documented. Its name
> is quite vague and is not intuitive what's the behaviour when it is set.
>
> Document in kernel-parameters.txt what actually happens when nomodeset
> is used. That way, users could know if they want to enable this option.
>
> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
> ---
>
> (no changes since v1)
>
> Documentation/admin-guide/kernel-parameters.txt | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git Documentation/admin-guide/kernel-parameters.txt Documentation/admin-guide/kernel-parameters.txt
> index 91ba391f9b32..ed9859fd0734 100644
> --- Documentation/admin-guide/kernel-parameters.txt
> +++ Documentation/admin-guide/kernel-parameters.txt
> @@ -3521,6 +3521,10 @@
> shutdown the other cpus. Instead use the REBOOT_VECTOR
> irq.
>
> + nomodeset Disable kernel modesetting. DRM drivers will not be
> + loaded when this kernel boot parameter is used. The
> + simpledrm driver is the only DRM driver that loads.
> +

That's misleading and to the general admin it might not be clear what
simpledrm is about. Rather say something like

Disable kernel modesetting. DRM drivers will not perform
display-mode changes or accelerated rendering. Only the
system framebuffer will be available for use. Requires the
firmware or boot loader to setup the display. Useful as
fallback, or for testing and debugging.

Best regards
Thomas

> nomodule Disable module load
>
> nopat [X86] Disable PAT (page attribute table extension of
>

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
[unhandled content-type:application/pgp-signature]
\
 
 \ /
  Last update: 2021-11-08 13:49    [W:0.066 / U:0.024 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site