<SOLVED> Need help getting Intel UHD 750 driver working

[seaker]

I just build a machine using an ASRock H570M-ITX/ac motherboard using an Intel i7-11700K processor which has the Intel UHD 750 graphics on it. The OS is LDME 5. The problem is that I can not get the machine to display full HD (1920x1080) instead I'm stuck with a VESA resolution of 800x600.

dmesg | grep i915 returns:

Code: Select all

[    1.378303] i915 0000:00:02.0: Your graphics device 4c8a is not properly supported by the driver in this
               kernel version. To force driver probe anyway, use i915.force_probe=4c8a
[   64.574579] snd_hda_codec_hdmi hdaudioC0D2: No i915 binding for Intel HDMI/DP codec

I tried adding GRUB_CMDLINE_LINUX="i915.force_probe=4c8a" into /etc/default/grub and then ran update-grub. It appeared to update grub. Rebooted and nothing has changed. I still am stuck at 800x600 and dmesg reports the same thing. From what I've been able to find it appears that the kernel, 5.10.0-19-amd64, that is running should support Intel UHD 750. So, what am I missing?

Here is the results of inxi -Fxxxrz:

Code: Select all

System:
  Kernel: 5.10.0-19-amd64 x86_64 bits: 64 compiler: gcc v: 10.2.1 
  Desktop: Cinnamon 5.4.12 tk: GTK 3.24.24 wm: Mutter dm: LightDM 1.26.0 
  Distro: LMDE 5 Elsie base: Debian 11.2 bullseye 
Machine:
  Type: Desktop Mobo: ASRock model: H570M-ITX/ac serial: <filter> 
  UEFI: American Megatrends LLC. v: P1.70 date: 10/22/2021 
CPU:
  Info: 8-Core model: 11th Gen Intel Core i7-11700K bits: 64 type: MT MCP 
  arch: N/A rev: 1 L2 cache: 16 MiB 
  flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx 
  bogomips: 115200 
  Speed: 800 MHz min/max: 800/4900 MHz Core speeds (MHz): 1: 800 2: 800 
  3: 800 4: 801 5: 800 6: 800 7: 800 8: 800 9: 801 10: 801 11: 800 12: 801 
  13: 800 14: 800 15: 800 16: 800 
Graphics:
  Device-1: Intel vendor: ASRock driver: N/A bus ID: 00:02.0 
  chip ID: 8086:4c8a class ID: 0300 
  Display: x11 server: X.Org 1.21.1.4 driver: loaded: vesa 
  unloaded: fbdev,modesetting resolution: 800x600~75Hz s-dpi: 96 
  OpenGL: renderer: llvmpipe (LLVM 11.0.1 256 bits) v: 4.5 Mesa 20.3.5 
  compat-v: 3.1 direct render: Yes 
Audio:
  Device-1: Intel vendor: ASRock driver: snd_hda_intel v: kernel 
  bus ID: 00:1f.3 chip ID: 8086:43c8 class ID: 0403 
  Sound Server: ALSA v: k5.10.0-19-amd64 
Network:
  Device-1: Intel Ethernet I219-V vendor: ASRock driver: e1000e v: kernel 
  port: efa0 bus ID: 00:1f.6 chip ID: 8086:15fa class ID: 0200 
  IF: enp0s31f6 state: down mac: <filter> 
  Device-2: Realtek RTL8125 2.5GbE vendor: ASRock driver: r8169 v: kernel 
  port: 3000 bus ID: 02:00.0 chip ID: 10ec:8125 class ID: 0200 
  IF: enp2s0 state: down mac: <filter> 
  Device-3: Intel Dual Band Wireless-AC 3168NGW [Stone Peak] driver: iwlwifi 
  v: kernel port: 3000 bus ID: 03:00.0 chip ID: 8086:24fb class ID: 0280 
  IF: wlp3s0 state: up mac: <filter> 
Bluetooth:
  Device-1: Intel Wireless-AC 3168 Bluetooth type: USB driver: btusb v: 0.8 
  bus ID: 1-14:5 chip ID: 8087:0aa7 class ID: e001 
  Report: ID: hci0 state: up running bt-v: 2.1 lmp-v: 4.2 sub-v: 1100 
  hci-v: 4.2 rev: 1100 address: <filter> 
Drives:
  Local Storage: total: 931.51 GiB used: 7.88 GiB (0.8%) 
  ID-1: /dev/nvme0n1 vendor: Samsung model: SSD 980 PRO 1TB size: 931.51 GiB 
  speed: 63.2 Gb/s lanes: 4 rotation: SSD serial: <filter> rev: 5B2QGXA7 
  temp: 38.9 C scheme: GPT 
Partition:
  ID-1: / size: 907.47 GiB used: 7.88 GiB (0.9%) fs: ext4 
  dev: /dev/nvme0n1p3 
  ID-2: /boot/efi size: 285.4 MiB used: 3.4 MiB (1.2%) fs: vfat 
  dev: /dev/nvme0n1p1 
Swap:
  ID-1: swap-1 type: partition size: 8.2 GiB used: 0 KiB (0.0%) priority: -2 
  dev: /dev/nvme0n1p2 
Sensors:
  System Temperatures: cpu: 31.0 C mobo: N/A 
  Fan Speeds (RPM): N/A 
Repos:
  Packages: apt: 2035 
  No active apt repos in: /etc/apt/sources.list 
  Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list 
  1: deb http://packages.linuxmint.com elsie main upstream import backport #id:linuxmint_main
  2: deb https://deb.debian.org/debian bullseye main contrib non-free
  3: deb https://deb.debian.org/debian bullseye-updates main contrib non-free
  4: deb http://security.debian.org bullseye-security main contrib non-free
  5: deb https://deb.debian.org/debian bullseye-backports main contrib non-free
  Active apt repos in: /etc/apt/sources.list.d/testing.list 
  1: deb http://httpredir.debian.org/debian/ testing main contrib non-free
  2: deb-src http://httpredir.debian.org/debian/ testing main contrib non-free
Info:
  Processes: 314 Uptime: 6m wakeups: 0 Memory: 30.96 GiB 
  used: 2.41 GiB (7.8%) Init: systemd v: 247 runlevel: 5 Compilers: 
  gcc: 10.2.1 alt: 10 Shell: Bash v: 5.1.4 running in: gnome-terminal 
  inxi: 3.3.01 

[MiZoG]

Use [code][/code] instead of [c][/c] for large blocks of code.

"Debian Stable" (the base distribution for LMDE) is not ideal for relatively new hardware.

My advice: switch to the latest version of main edition, LM 21 Vanessa.

Of course you can try to install a "backported" recent kernel

sudo apt install -t bullseye-backports linux-image-amd64

Similarly you can get somewhat "fresher" firmware

sudo apt install -t bullseye-backports intel-microcode

There are bits of intel microcode in an additional package

sudo apt install -t bullseye-backports firmware-misc-nonfree

However, the critical package for hardware acceleration "intel-media-va-driver-non-free" is not available on Debian backports.

[jwiz]

Try to force-load the appropriate i915 driver by:

echo "options i915 force_probe=4c8a" | sudo tee -a /etc/modprobe.d/i915.conf

[SMG]

I tried adding GRUB_CMDLINE_LINUX="i915.force_probe=4c8a" into /etc/default/grub and then ran update-grub. It appeared to update grub. Rebooted and nothing has changed. I still am stuck at 800x600 and dmesg reports the same thing. From what I've been able to find it appears that the kernel, 5.10.0-19-amd64, that is running should support Intel UHD 750. So, what am I missing?

Welcome to the forum, seaker.

Where did you find information that the 5.10 kernel should support UHD 750?

My recommendation is to just backport a newer kernel so you can get the proper drivers. Intel does not recommend doing force probes which may be why it did not work.

You should also check to make sure you are running the most recent BIOS/UEFI for your motherboard.

[seaker]

Try to force-load the appropriate i915 driver by:

echo "options i915 force_probe=4c8a" | sudo tee -a /etc/modprobe.d/i915.conf

Thanks! But it didn't work. I'll try the backport.

[seaker]

Welcome to the forum, seaker.

Where did you find information that the 5.10 kernel should support UHD 750?

My recommendation is to just backport a newer kernel so you can get the proper drivers. Intel does not recommend doing force probes which may be why it did not work.

You should also check to make sure you are running the most recent BIOS/UEFI for your motherboard.

Unfortunately, I've looked at enough different sites and places that I can not say. Also, because of that and my noobness with LDME, it is distinctly possible I misread something along the way.

I did check the BIOS, and I have the latest for this motherboard. Trying the backport next.

[seaker]

Use [code][/code] instead of [c][/c] for large blocks of code.

"Debian Stable" (the base distribution for LMDE) is not ideal for relatively new hardware.

My advice: switch to the latest version of main edition, LM 21 Vanessa.

Of course you can try to install a "backported" recent kernel

sudo apt install -t bullseye-backports linux-image-amd64

Similarly you can get somewhat "fresher" firmware

sudo apt install -t bullseye-backports intel-microcode

There are bits of intel microcode in an additional package

sudo apt install -t bullseye-backports firmware-misc-nonfree

However, the critical package for hardware acceleration "intel-media-va-driver-non-free" is not available on Debian backports.

Well, unfortunately this did not work either. After rebooting, dmesg | grep i915 is still showing the same message to try to force it. And that is still set in grub. I think I'm going to have to pull LDME off and try Vanessa. I appreciate all the help all of you have provided. Thanks!