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Mestrio avatar Ubuntu

CMake problem when building video driver for Intel AlderLake-S GT1

cn flag
Mestrio

I am trying to get a video driver to support my CPU supported video output (specifically the Intel AlderLake-S GT1).

Here is the output from inxi

Graphics:
  Device-1: Intel AlderLake-S GT1 driver: N/A

The instructions I was following for the Intel media-driver on GitHub at https://github.com/intel/media-driver instruct me to build gmmlib at https://github.com/intel/gmmlib) which I have.

Unfortunately I cannot get the media-driver's cmake to find the build I did when I created gmmlib.

The "cmake ../media-driver" command complains with:

-- Checking for module 'igdgmm>=12.0.0'
--   No package 'igdgmm' found

I have the file structure as follows

./gmmlib
./media-driver
./build_media

I'm running the cmake command from within the "build_media" directory using the following.

cmake ../media-driver

When cmake is looking for a module, where does it look? What file is it looking for? How do you direct it to a specific directory?

uname -srm: Linux 5.13.0-30-generic x86_64

lspci -k | grep -iE "VGA|video|3d|graphic" -A3
00:02.0 VGA compatible controller: Intel Corporation AlderLake-S GT1 (rev 0c) 
DeviceName: Onboard - Video Subsystem: Gigabyte Technology Co., Ltd AlderLake-S GT1 
Kernel modules: i915 
00:0a.0 Signal processing controller: Intel Corporation Device 467d (rev 01)
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N0rbert avatar
zw flag
N0rbert
What is your Ubuntu version? What is your Linux kernel version? Do you use HWE stack for kernel and Xorg? What do you have for `lspci -k | grep -iE "VGA|video|3d|graphic" -A3 ` ?
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Mestrio avatar
cn flag
Mestrio
Kernal version (per uname -srm): Linux 5.13.0-30-generic x86_64
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Mestrio avatar
cn flag
Mestrio
Not sure about the HWE stack. I didn't do anything specific so probably not.
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Mestrio avatar
cn flag
Mestrio
Here's the output of the lspci command: "00:02.0 VGA compatible controller: Intel Corporation AlderLake-S GT1 (rev 0c) DeviceName: Onboard - Video Subsystem: Gigabyte Technology Co., Ltd AlderLake-S GT1 Kernel modules: i915 00:0a.0 Signal processing controller: Intel Corporation Device 467d (rev 01) "
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N0rbert avatar
zw flag
N0rbert
According to https://linux-hardware.org/?probe=6c4ff21b02 you have to get newest possible linux kernel for this Ubuntu version. Or upgrade whole system to 22.04 LTS with its 5.15 kernel and test possible progress here.
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Score:1
N0rbert avatar Ubuntu
zw flag
N0rbert

Search on packages.ubuntu.com gives the following installation command:

sudo apt-get install libigdgmm-dev

and then you have to retry compilation.

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Mestrio avatar
cn flag
Mestrio
Unfortunately the package available in libigdgmm-dev is 11.3.0 and the media-driver I pulled down from GItHub requires 12.0.
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Mestrio avatar
cn flag
Mestrio
Here's what I was able to get to work. I did a "sudo make install" in the libgmm project (12.0 version), even though the instructions in the README didn't have me doing that. That put a "igdgmm.pc" file in the /usr/local/lib/pkgconfig directory. That let cmake see the correct location.
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Mestrio avatar
cn flag
Mestrio
Unfortunately that did not help me with my display screen size. It is stuck at 1024x768 (even though the monitor should handle much higher resolution). I had assumed that I needed to update the driver but I guess I was going down the wrong path. I'll ask a new question about how to debug monitor type not being discovered.
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