Mesa - Revision history

Nekowinston: amend the Intel Xe note for Mesa >25.1.0

2025-09-02T12:25:05Z

amend the Intel Xe note for Mesa >25.1.0

← Older revision		Revision as of 12:25, 2 September 2025
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	== Intel Xe Driver Warning Spam ==		== Intel Xe Driver Warning Spam ==

	If you're using the Intel Xe driver you may end up getting a lot of <code>MESA: warning: Support for this platform is experimental with Xe KMD, bug reports may be ignored.</code> messages spam in your console when running various tools. You can disable this spam by setting the [https://docs.mesa3d.org/envvars.html MESA_LOG_FILE] environment variable to some file location (like <code>/dev/null</code>). To make the change permanent you could add it to your `environment.variables` attribute set in your nix config. The downside to this approach is that you won't see legitimate Mesa warnings or errors on your console afterwards.		If you're using the Intel Xe driver you may end up getting a lot of <code>MESA: warning: Support for this platform is experimental with Xe KMD, bug reports may be ignored.</code> messages spam in your console when running various tools. You can disable this spam by setting the [https://docs.mesa3d.org/envvars.html MESA_LOG_FILE] environment variable to some file location (like <code>/dev/null</code>). To make the change permanent you could add it to your <code>environment.variables</code> attribute set in your nix config. The downside to this approach is that you won't see legitimate Mesa warnings or errors on your console afterwards.

			Starting with [https://docs.mesa3d.org/relnotes/25.1.0.html Mesa 25.1.0], you can suppress the warning with <code>INTEL_XE_IGNORE_EXPERIMENTAL_WARNING=1</code>.

	[[Category: Video]]		[[Category: Video]]

Fidgetingbits: Add note about disabling Intel Xe warning spam when running command-line tools

2025-08-29T07:08:25Z

Add note about disabling Intel Xe warning spam when running command-line tools

← Older revision		Revision as of 07:08, 29 August 2025
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	else throw "Unsupported platform: this derivation only supports Linux/Darwin"		else throw "Unsupported platform: this derivation only supports Linux/Darwin"
	</syntaxhighlight>		</syntaxhighlight>

			== Intel Xe Driver Warning Spam ==

			If you're using the Intel Xe driver you may end up getting a lot of <code>MESA: warning: Support for this platform is experimental with Xe KMD, bug reports may be ignored.</code> messages spam in your console when running various tools. You can disable this spam by setting the [https://docs.mesa3d.org/envvars.html MESA_LOG_FILE] environment variable to some file location (like <code>/dev/null</code>). To make the change permanent you could add it to your `environment.variables` attribute set in your nix config. The downside to this approach is that you won't see legitimate Mesa warnings or errors on your console afterwards.

	[[Category: Video]]		[[Category: Video]]

Console4852: Explain how to override the Mesa package.

2025-06-08T08:07:29Z

Explain how to override the Mesa package.

← Older revision		Revision as of 08:07, 8 June 2025
Line 1:		Line 1:
	[https://www.mesa3d.org/ Mesa] is an open source implementation of several graphics APIs including OpenGL and Vulkan.		[https://www.mesa3d.org/ Mesa] is an open source implementation of several graphics APIs including OpenGL and Vulkan.

			You can change the Mesa version using the <code>hardware.graphics.package</code> option as of NixOS 25.05.

	== Enabling Vulkan Layers ==		== Enabling Vulkan Layers ==

imported>PedroHLC: update default drivers to 22.3.0

2022-12-05T14:33:42Z

update default drivers to 22.3.0

← Older revision		Revision as of 14:33, 5 December 2022
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	== Default drivers ==		== Default drivers ==

	In case you wonder where does <code>["auto"]</code> in mesa's attributes lead you, this might be another way to see them (for 22.1.3[https://gitlab.freedesktop.org/mesa/mesa/-/blob/mesa-22.1.3/meson.build]):		In case you wonder where does <code>["auto"]</code> in mesa's attributes lead you, this might be another way to see them (for 22.3.0[https://gitlab.freedesktop.org/mesa/mesa/-/blob/mesa-22.3.0/meson.build]):
	<syntaxhighlight lang="nix">		<syntaxhighlight lang="nix">
	, galliumDrivers ?		, galliumDrivers ?
Line 64:		Line 64:
	if stdenv.isLinux then		if stdenv.isLinux then
	if stdenv.isi686 \|\| stdenv.isx86_64 then ["r300" "r600" "radeonsi" "nouveau" "virgl" "svga" "swrast" "iris" "crocus" "i915"]		if stdenv.isi686 \|\| stdenv.isx86_64 then ["r300" "r600" "radeonsi" "nouveau" "virgl" "svga" "swrast" "iris" "crocus" "i915"]
	else if stdenv.isAarch64 then ["v3d" "vc4" "freedreno" "etnaviv" "nouveau" "tegra" "virgl" "lima" "panfrost" "swrast"]		else if stdenv.isAarch64 then ["v3d" "vc4" "freedreno" "etnaviv" "nouveau" "svga" "tegra" "virgl" "lima" "panfrost" "swrast"]
	else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"		else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"
	else if stdenv.isDarwin then ["swrast"]		else if stdenv.isDarwin then ["swrast"]
Line 71:		Line 71:
	# Search for `_vulkan_drivers.contains('auto')` in meson.build		# Search for `_vulkan_drivers.contains('auto')` in meson.build
	if stdenv.isLinux then		if stdenv.isLinux then
	if stdenv.isi686 \|\| stdenv.isx86_64 then ["amd" "intel" "swrast"]		if stdenv.isi686 \|\| stdenv.isx86_64 then ["amd" "intel" "intel_hasvk" "swrast"]
	else if stdenv.isAarch64 \|\| stdenv.isArch32 then ["swrast"]		else if stdenv.isAarch64 \|\| stdenv.isArch32 then ["swrast"]
	else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"		else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"

imported>PedroHLC: Currently Vulkan layers are enabled by default

2022-11-09T14:25:01Z

Currently Vulkan layers are enabled by default

← Older revision		Revision as of 14:25, 9 November 2022
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	== Enabling Vulkan Layers ==		== Enabling Vulkan Layers ==
			{{outdated\|Vulkan layers are enabled by default since we merged {{pull\|196310}}. However, this is a good example on how to properly override mesa's package attributes.}}

	Vulkan Layers are not enabled by default in [https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/libraries/mesa/default.nix Nixpkgs]. You can override the existing Mesa packages and specify them in <code>config.hardware.opengl</code>.		Vulkan Layers are not enabled by default in [https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/libraries/mesa/default.nix Nixpkgs]. You can override the existing Mesa packages and specify them in <code>config.hardware.opengl</code>.
	<syntaxhighlight lang="nix">		<syntaxhighlight lang="nix">

imported>Fufexan: Add page to Video category

2022-08-09T20:04:18Z

Add page to Video category

← Older revision		Revision as of 20:04, 9 August 2022
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	else throw "Unsupported platform: this derivation only supports Linux/Darwin"		else throw "Unsupported platform: this derivation only supports Linux/Darwin"
	</syntaxhighlight>		</syntaxhighlight>

			[[Category: Video]]

imported>PedroHLC: Help users find the default drivers

2022-07-06T21:42:58Z

Help users find the default drivers

← Older revision		Revision as of 21:42, 6 July 2022
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	if (selected_physical_device_count == 0) {		if (selected_physical_device_count == 0) {
			</syntaxhighlight>

			== Default drivers ==

			In case you wonder where does <code>["auto"]</code> in mesa's attributes lead you, this might be another way to see them (for 22.1.3[https://gitlab.freedesktop.org/mesa/mesa/-/blob/mesa-22.1.3/meson.build]):
			<syntaxhighlight lang="nix">
			, galliumDrivers ?
			# Search for `gallium_drivers.contains('auto')` in meson.build
			if stdenv.isLinux then
			if stdenv.isi686 \|\| stdenv.isx86_64 then ["r300" "r600" "radeonsi" "nouveau" "virgl" "svga" "swrast" "iris" "crocus" "i915"]
			else if stdenv.isAarch64 then ["v3d" "vc4" "freedreno" "etnaviv" "nouveau" "tegra" "virgl" "lima" "panfrost" "swrast"]
			else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"
			else if stdenv.isDarwin then ["swrast"]
			else throw "Unsupported platform: this derivation only supports Linux/Darwin"
			, vulkanDrivers ?
			# Search for `_vulkan_drivers.contains('auto')` in meson.build
			if stdenv.isLinux then
			if stdenv.isi686 \|\| stdenv.isx86_64 then ["amd" "intel" "swrast"]
			else if stdenv.isAarch64 \|\| stdenv.isArch32 then ["swrast"]
			else throw "Unsupported platform: this derivation only supports i686/x86_64/aarch64"
			else if stdenv.isDarwin then []
			else throw "Unsupported platform: this derivation only supports Linux/Darwin"
	</syntaxhighlight>		</syntaxhighlight>

imported>Natto1784: Created page with "[https://www.mesa3d.org/ Mesa] is an open source implementation of several graphics APIs including OpenGL and Vulkan. == Enabling Vulkan Layers == Vulkan Layers are not enabl..."

2022-03-27T03:24:13Z

Created page with "[https://www.mesa3d.org/ Mesa] is an open source implementation of several graphics APIs including OpenGL and Vulkan. == Enabling Vulkan Layers == Vulkan Layers are not enabl..."

New page

[https://www.mesa3d.org/ Mesa] is an open source implementation of several graphics APIs including OpenGL and Vulkan.

== Enabling Vulkan Layers ==
Vulkan Layers are not enabled by default in [https://github.com/NixOS/nixpkgs/blob/master/pkgs/development/libraries/mesa/default.nix Nixpkgs]. You can override the existing Mesa packages and specify them in <code>config.hardware.opengl</code>.
<syntaxhighlight lang="nix">
hardware = {
opengl =
let
fn = oa: {
nativeBuildInputs = oa.nativeBuildInputs ++ [ pkgs.glslang ];
mesonFlags = oa.mesonFlags ++ [ "-Dvulkan-layers=device-select,overlay" ];
# patches = oa.patches ++ [ ./mesa-vulkan-layer-nvidia.patch ]; See below
postInstall = oa.postInstall + ''
mv $out/lib/libVkLayer* $drivers/lib

#Device Select layer
layer=VkLayer_MESA_device_select
substituteInPlace $drivers/share/vulkan/implicit_layer.d/''${layer}.json \
--replace "lib''${layer}" "$drivers/lib/lib''${layer}"

#Overlay layer
layer=VkLayer_MESA_overlay
substituteInPlace $drivers/share/vulkan/explicit_layer.d/''${layer}.json \
--replace "lib''${layer}" "$drivers/lib/lib''${layer}"
'';
};
in
with pkgs; {
enable = true;
driSupport32Bit = true;
package = (mesa.overrideAttrs fn).drivers;
package32 = (pkgsi686Linux.mesa.overrideAttrs fn).drivers;
};
</syntaxhighlight>
Nvidia users may need to apply this patch for the <code>Device Select</code> layer to work.
<syntaxhighlight lang="diff">
diff b/src/vulkan/device-select-layer/device_select_layer.c a/src/vulkan/device-select-layer/device_select_layer.c
--- b/src/vulkan/device-select-layer/device_select_layer.c
+++ a/src/vulkan/device-select-layer/device_select_layer.c
@@ -454,12 +454,8 @@
exit(0);
} else {
unsigned selected_index = get_default_device(info, selection, physical_device_count, physical_devices);
- selected_physical_device_count = physical_device_count;
+ selected_physical_device_count = 1;
selected_physical_devices[0] = physical_devices[selected_index];
- for (unsigned i = 0; i < physical_device_count - 1; ++i) {
- unsigned this_idx = i < selected_index ? i : i + 1;
- selected_physical_devices[i + 1] = physical_devices[this_idx];
- }
}

if (selected_physical_device_count == 0) {
</syntaxhighlight>