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authorJavier Martinez Canillas <javierm@redhat.com>2021-11-12 16:32:29 +0300
committerJavier Martinez Canillas <javierm@redhat.com>2021-11-27 15:52:29 +0300
commitb22a15a5aca34c8f59b770f858b1c21d347175e0 (patch)
tree2efb7f60a24e38e32f550e0929ae6868b57c8417 /Documentation/admin-guide
parente9aeeba26a8de1f553305722d017022ae7e79280 (diff)
downloadlinux-b22a15a5aca34c8f59b770f858b1c21d347175e0.tar.xz
Documentation/admin-guide: Document nomodeset kernel parameter
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> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Pekka Paalanen <pekka.paalanen@collabora.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211112133230.1595307-6-javierm@redhat.com
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 9725c546a0d4..eb258526d70d 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -3545,6 +3545,13 @@
shutdown the other cpus. Instead use the REBOOT_VECTOR
irq.
+ nomodeset Disable kernel modesetting. DRM drivers will not perform
+ display-mode changes or accelerated rendering. Only the
+ system framebuffer will be available for use if this was
+ set-up by the firmware or boot loader.
+
+ Useful as fallback, or for testing and debugging.
+
nomodule Disable module load
nopat [X86] Disable PAT (page attribute table extension of