Arch Linux

Fusion916

Member

Registered: 2024-05-18

Posts: 57

KDE/Wayland - Graphics coming up as "llvmpipe" with Intel Arc 140V

I just bought a new laptop and from what I understand intel graphics are directly into the kernal with no extra packages needed, however after installing arch on the laptop, graphics are coming up as llvmpipe and my refresh rate is limited to 60hz with no HDR support (it supports 120hz/HDR).

Does anyone know the situation here? Is there some kernal parameters needed?

In the "PCI" section in KDE Info center, it does read the correct graphics information

00:02.0 VGA compatible controller: Intel Corporation Lunar Lake [Intel Arc Graphics 130V / 140V] (rev 04) (prog-if 00 [VGA controller])
    DeviceName: VGA
    Subsystem: ASUSTeK Computer Inc. Device 1e13
    Flags: bus master, fast devsel, latency 0, IOMMU group 3
    Memory at 3010000000 (64-bit, prefetchable) [size=16M]
    Memory at 2000000000 (64-bit, prefetchable) [size=256M]
    Expansion ROM at 000c0000 [disabled] [size=128K]
    Capabilities: <access denied>
    Kernel modules: xe

Fusion916

Member

Registered: 2024-05-18

Posts: 57

Re: KDE/Wayland - Graphics coming up as "llvmpipe" with Intel Arc 140V

In case anyone else runs into this issue, I had to force the xe module to load using modprobe. If you dont force it, you get this message from the kernel on boot:

[    0.968980] xe 0000:00:02.0: Your graphics device 64a0 is not officially supported
               by xe driver in this kernel version. To force Xe probe,
               use xe.force_probe='64a0' and i915.force_probe='!64a0'
               module parameters or CONFIG_DRM_XE_FORCE_PROBE='64a0' and
               CONFIG_DRM_I915_FORCE_PROBE='!64a0' configuration options.

With this I'm getting Mesa Intel(R) Graphics shown instead of llvmpipe in the info center and 120Hz refresh rate and a bunch of color options are now availible. However, for some reason I still don't see an option for HDR. I suppose I have to wait until this graphics card is fully supported or maybe wayland/kde needs some kind of update for HDR option to be available.

icar

Member

Registered: 2020-07-31

Posts: 560

Re: KDE/Wayland - Graphics coming up as "llvmpipe" with Intel Arc 140V

For HDR, check this: https://wiki.archlinux.org/title/KDE#HDR

Fusion916

Member

Registered: 2024-05-18

Posts: 57

Re: KDE/Wayland - Graphics coming up as "llvmpipe" with Intel Arc 140V

For HDR, check this: https://wiki.archlinux.org/title/KDE#HDR

I'm not trying to enable HDR with particular apps or games. The system wide HDR option is missing in plasma display settings. On my Desktop (Nvidia 4090) the checkbox for HDR is there. I know the graphics card support HDR because I was able to enable it in windows.