Kernel Modesetting - Revision history

Prabuanand: fixed wikilinks

2025-05-09T05:11:35Z

fixed wikilinks

← Older revision		Revision as of 05:11, 9 May 2025
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	{{TOC right}}		{{TOC right}}

	[https://en.wikipedia.org/wiki/Mode%20setting Kernel Mode Setting] '''(KMS)''' allows setting the display resolution in kernel space instead of userspace. This allows setting native screen resolutions early in the system boot process and can reduce flickering, both when booting and when switching ttys.		[https://en.wikipedia.org/wiki/Mode%20setting Kernel Mode Setting] '''(KMS)''' allows setting the display resolution in kernel space instead of userspace. This allows setting native screen resolutions early in the system boot process and can reduce flickering, both when booting and when switching ttys.

	Enabling KMS requires adding {{ic\|kms}} to the {{ic\|mkinitfs}} config file {{Path\|/etc/mkinitfs/mkinitfs.conf}} configuration by adding it to the <var>features</var> variable, e.g:		Enabling KMS requires adding {{ic\|kms}} to the {{ic\|mkinitfs}} config file {{Path\|/etc/mkinitfs/mkinitfs.conf}} configuration by adding it to the <var>features</var> variable, e.g:{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}
	{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}

	The relevant DRM module for the graphics card needs to be added to the kernel cmdline. For e.g.: if your graphics card uses {{ic\|amdgpu}}, add {{ic\|modules{{=}}other-modules,amdgpu}} to the cmdline. Omitting this step will result in additional flickering i.e early output will render at low resolution and the resolution will change when the module is later loaded.		The relevant DRM module for the graphics card needs to be added to the kernel cmdline. For e.g.: if your graphics card uses {{ic\|amdgpu}}, add {{ic\|modules{{=}}other-modules,amdgpu}} to the cmdline. Omitting this step will result in additional flickering i.e early output will render at low resolution and the resolution will change when the module is later loaded.
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	The exact driver and firmware required will vary depending on the GPU being used. See the links below for further details:		The exact driver and firmware required will vary depending on the GPU being used. See the links below for further details:

	* [[~~Intel_Video#Kernel_Modesetting_(KMS)\|~~Intel Video]]		* [[Intel Video]]
	* [[Radeon_Video#Kernel_Modesetting_(KMS)\|AMD/Radeon Video]]		* [[Radeon_Video#Kernel_Modesetting_(KMS)\|AMD/Radeon Video]]
	* [[~~NVIDIA#Kernel_Modesetting_(KMS)\|~~NVIDIA]]		* [[NVIDIA]]

	=== See also ===		== See also ==

	* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting in Arch wiki]		* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting in Arch wiki]

Prabuanand: added Graphics Category :Category:Graphics and fixed links

2025-05-09T04:43:29Z

added Graphics Category Category:Graphics and fixed links

← Older revision		Revision as of 04:43, 9 May 2025
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	~~{{Expand\|Needs nVidia driver information}}~~
	{{TOC right}}		{{TOC right}}

	~~'''KMS''' (Kernel~~ [https://en.wikipedia.org/wiki/Mode%20setting Mode Setting]) allows setting the display resolution in kernel space instead of userspace. This allows setting native screen resolutions early in the system boot process and can reduce flickering, both when booting and when switching ttys.		[https://en.wikipedia.org/wiki/Mode%20setting Kernel Mode Setting] '''(KMS)''' allows setting the display resolution in kernel space instead of userspace. This allows setting native screen resolutions early in the system boot process and can reduce flickering, both when booting and when switching ttys.

	~~Enabling KMS requires adding <code>kms</code> to the <code>mkinitfs</code> configuration by adding it to the <var>features</var> variable, e.g:~~

			Enabling KMS requires adding {{ic\|kms}} to the {{ic\|mkinitfs}} config file {{Path\|/etc/mkinitfs/mkinitfs.conf}} configuration by adding it to the <var>features</var> variable, e.g:
	{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}		{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}

	The relevant DRM module for the graphics card needs to be added to the kernel cmdline (e.g.: if your graphics card uses ~~<code>~~amdgpu~~</code>~~, add ~~<code>~~modules=other-modules,amdgpu~~</code>~~ to the cmdline). Omitting this step will result in additional flickering (e~~.g.:~~ early output will render at low resolution and the resolution will change when the module is later loaded).		The relevant DRM module for the graphics card needs to be added to the kernel cmdline. For e.g.: if your graphics card uses {{ic\|amdgpu}}, add {{ic\|modules{{=}}other-modules,amdgpu}} to the cmdline. Omitting this step will result in additional flickering i.e early output will render at low resolution and the resolution will change when the module is later loaded.

	The exact driver (and firmware) required will vary depending on the GPU being used. See the links below for further details.		The exact driver and firmware required will vary depending on the GPU being used. See the links below for further details:

	~~=== Intel ===~~		* [[Intel_Video#Kernel_Modesetting_(KMS)\|Intel Video]]
	~~See~~ [[Intel_Video#Kernel_Modesetting_(KMS)]]		* [[Radeon_Video#Kernel_Modesetting_(KMS)\|AMD/Radeon Video]]
	~~=== AMD/Radeon ===~~		* [[NVIDIA#Kernel_Modesetting_(KMS)\|NVIDIA]]
	~~See~~ [[Radeon_Video#Kernel_Modesetting_(KMS)]]
	~~=== Nouveau ===~~
	~~See~~ [[~~Nouveau_Video~~#Kernel_Modesetting_(KMS)]]
	~~=== nVidia ===~~
	~~{{Todo\|Find out how KMS works with nVidia drivers}}~~

	=== See also ===		=== See also ===
	* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting] ~~archlinux.org~~
			* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting in Arch wiki]

	[[Category:Kernel]]		[[Category:Kernel]]
			[[Category:Graphics]]

Samedev at 18:08, 8 May 2025

2025-05-08T18:08:34Z

← Older revision		Revision as of 18:08, 8 May 2025
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	See [[Radeon_Video#Kernel_Modesetting_(KMS)]]		See [[Radeon_Video#Kernel_Modesetting_(KMS)]]
	=== Nouveau ===		=== Nouveau ===
	See [[~~NVidia_Video~~#Kernel_Modesetting_(KMS)]]		See [[Nouveau_Video#Kernel_Modesetting_(KMS)]]
	=== nVidia ===		=== nVidia ===
	{{Todo\|Find out how KMS works with nVidia drivers}}		{{Todo\|Find out how KMS works with nVidia drivers}}

Samedev at 18:07, 8 May 2025

2025-05-08T18:07:50Z

← Older revision		Revision as of 18:07, 8 May 2025
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	See [[Radeon_Video#Kernel_Modesetting_(KMS)]]		See [[Radeon_Video#Kernel_Modesetting_(KMS)]]
	=== Nouveau ===		=== Nouveau ===
	See [[~~Nouveau_Video~~#Kernel_Modesetting_(KMS)]]		See [[NVidia_Video#Kernel_Modesetting_(KMS)]]
	=== nVidia ===		=== nVidia ===
	{{Todo\|Find out how KMS works with nVidia drivers}}		{{Todo\|Find out how KMS works with nVidia drivers}}

WhyNotHugo: Explain what happens if modules are ommitted

2023-01-07T14:02:20Z

Explain what happens if modules are ommitted

← Older revision		Revision as of 14:02, 7 January 2023
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	{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}		{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}

	The relevant DRM module for the graphics card needs to be added to the kernel cmdline (e.g.: if your graphics card uses <code>amdgpu</code>, add <code>modules=other-modules,amdgpu</code> to the cmdline).		The relevant DRM module for the graphics card needs to be added to the kernel cmdline (e.g.: if your graphics card uses <code>amdgpu</code>, add <code>modules=other-modules,amdgpu</code> to the cmdline). Omitting this step will result in additional flickering (e.g.: early output will render at low resolution and the resolution will change when the module is later loaded).

	The exact driver (and firmware) required will vary depending on the GPU being used. See the links below for further details.		The exact driver (and firmware) required will vary depending on the GPU being used. See the links below for further details.

WhyNotHugo: More details on making sure the module is loaded early

2023-01-07T13:59:41Z

More details on making sure the module is loaded early

← Older revision		Revision as of 13:59, 7 January 2023
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	{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}		{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}

	~~Additional~~ driver or firmware is required depending on the ~~hardware in use:~~		The relevant DRM module for the graphics card needs to be added to the kernel cmdline (e.g.: if your graphics card uses <code>amdgpu</code>, add <code>modules=other-modules,amdgpu</code> to the cmdline).

			The exact driver (and firmware) required will vary depending on the GPU being used. See the links below for further details.

	=== Intel ===		=== Intel ===

WhyNotHugo: Extend / tidy up article

2023-01-07T00:19:36Z

Extend / tidy up article

← Older revision		Revision as of 00:19, 7 January 2023
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	{{Expand\|Needs nVidia driver information}}		{{Expand\|Needs nVidia driver information}}
			{{TOC right}}

	'''KMS''' (Kernel [https://en.wikipedia.org/wiki/Mode%20setting Mode Setting]) allows setting the display resolution in kernel space instead of userspace. It allows setting native screen resolutions early in the ~~startup~~ process and can reduce flickering, both when booting up and when switching ttys.		'''KMS''' (Kernel [https://en.wikipedia.org/wiki/Mode%20setting Mode Setting]) allows setting the display resolution in kernel space instead of userspace. This allows setting native screen resolutions early in the system boot process and can reduce flickering, both when booting and when switching ttys.

	~~; Intel~~		Enabling KMS requires adding <code>kms</code> to the <code>mkinitfs</code> configuration by adding it to the <var>features</var> variable, e.g:
	~~: See [[Intel_Video#Kernel_Modesetting_(KMS)]]~~
	~~; Radeon~~
	~~: See [[Radeon_Video#Kernel_Modesetting_(KMS)]]~~
	~~; Nouveau~~
	~~: See [[Nouveau_Video#Kernel_Modesetting_(~~KMS~~)]]~~
	~~; nVidia~~
	: ~~{{Todo\|Find out how KMS works with nVidia drivers}}~~

	= =		{{cat\|/etc/mkinitfs/mkinitfs.conf\|features{{=}}"keymap cryptsetup kms ata base ide scsi usb virtio ext4"}}

			Additional driver or firmware is required depending on the hardware in use:

			=== Intel ===
			See [[Intel_Video#Kernel_Modesetting_(KMS)]]
			=== AMD/Radeon ===
			See [[Radeon_Video#Kernel_Modesetting_(KMS)]]
			=== Nouveau ===
			See [[Nouveau_Video#Kernel_Modesetting_(KMS)]]
			=== nVidia ===
			{{Todo\|Find out how KMS works with nVidia drivers}}

			=== See also ===
	* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting] archlinux.org		* [https://wiki.archlinux.org/index.php/Kernel_mode_setting Kernel mode setting] archlinux.org

	[[Category:Kernel]]		[[Category:Kernel]]

WhyNotHugo: Add link to relevant wikipedia artile

2023-01-06T23:51:56Z

Add link to relevant wikipedia artile

← Older revision		Revision as of 23:51, 6 January 2023
Line 1:		Line 1:
	{{Expand\|Needs nVidia driver information}}		{{Expand\|Needs nVidia driver information}}

	'''KMS''' (Kernel Mode Setting) allows setting the display resolution in kernel space instead of userspace. It allows setting native screen resolutions early in the startup process and can reduce flickering, both when booting up and when switching ttys.		'''KMS''' (Kernel [https://en.wikipedia.org/wiki/Mode%20setting Mode Setting]) allows setting the display resolution in kernel space instead of userspace. It allows setting native screen resolutions early in the startup process and can reduce flickering, both when booting up and when switching ttys.

	; Intel		; Intel

WhyNotHugo: Extend description. Remove deletion flag (I'd rather extend this further than delete the little information availabe)

2023-01-06T23:51:28Z

Extend description. Remove deletion flag (I'd rather extend this further than delete the little information availabe)

← Older revision		Revision as of 23:51, 6 January 2023
Line 1:		Line 1:
	~~{{Delete\|Links to section that do not exist anymore}}~~
	{{Expand\|Needs nVidia driver information}}		{{Expand\|Needs nVidia driver information}}

			'''KMS''' (Kernel Mode Setting) allows setting the display resolution in kernel space instead of userspace. It allows setting native screen resolutions early in the startup process and can reduce flickering, both when booting up and when switching ttys.

	; Intel		; Intel

D1nuc0m: Propose deletion

2022-09-11T11:07:40Z

Propose deletion

← Older revision		Revision as of 11:07, 11 September 2022
Line 1:		Line 1:
			{{Delete\|Links to section that do not exist anymore}}
	{{Expand\|Needs nVidia driver information}}		{{Expand\|Needs nVidia driver information}}