Debian 12 screen resolution

[Debuser21215]

Before I start to ask for a help. I am windows user, Linux for me is complicated.

I bought a new graphics card the Radeon RX7000 series for my computer. On iGPU everything is okay, but dGPU screen resolution is default 720p and cannot change.

I run a command while using iGPU - "find /sys -name edid":

/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-1/edid
/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-HDMI-A-2/edid

When I run same command while with dGPU the output is empty. I did install radeon drivers.

Please, if someone could assist me with this issue. Thanks

[mrmazda]

We need more information. Please provide by copying and pasting within code tags (</> icon) input/ouput from running inxi -GSaz in a terminal. You may need to install inxi first: sudo apt install inxi

Modern "Radeon" cards produced by AMD require amdgpu drivers and firmware. Most installations will do this by default, but when there are multiple GPUs installed, the installer may not do so well, leaving more for the admin to do post-installation, depending on the particular GPUs involved.

[Debuser21215]

Code: Select all

System:
  Kernel: 6.1.0-17-amd64 arch: x86_64 bits: 64 compiler: gcc v: 12.2.0
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.1.0-17-amd64
    root=UUID=cf04979e-a78a-4628-b937-24d8e4c7f569 ro quiet
  Desktop: GNOME v: 43.9 tk: GTK v: 3.24.38 wm: gnome-shell dm: GDM3 v: 43.0
    Distro: Debian GNU/Linux 12 (bookworm)
Graphics:
  Device-1: AMD Navi 32 [Radeon RX 7700 XT / 7800 XT] vendor: Sapphire
    driver: N/A alternate: amdgpu pcie: gen: 4 speed: 16 GT/s lanes: 16
    bus-ID: 03:00.0 chip-ID: 1002:747e class-ID: 0300
  Device-2: Microsoft LifeCam HD-3000 type: USB driver: snd-usb-audio
    bus-ID: 1-10:6 chip-ID: 045e:0810 class-ID: 0102
  Display: x11 server: X.Org v: 1.21.1.7 with: Xwayland v: 22.1.9
    compositor: gnome-shell driver: X: loaded: vesa
    unloaded: fbdev,modesetting,radeon dri: swrast gpu: N/A display-ID: :1
    screens: 1
  Screen-1: 0 s-res: 1024x768 s-dpi: 96 s-size: 271x203mm (10.67x7.99")
    s-diag: 339mm (13.33")
  Monitor-1: default res: 1024x768 hz: 76 size: N/A modes: N/A
  API: OpenGL v: 4.5 Mesa 22.3.6 renderer: llvmpipe (LLVM 15.0.6 256 bits)
    direct-render: Yes

Thank you for your quick reply mrmazda.

[peter_irich]

If your video driver is amdgpu, you need download and install amdgpu-install package from AMD. Simple make searching by "amdgpu-install", install its deb-package and as root or through sudo call amdgpu-install. This script will install all what are need. I call it after every new installing kernel.

[mrmazda]

OP, it appears your GPU is too new for your distro. Inxi shows the amdgpu drivers have not loaded. If you wish to keep your Debian pure Debian instead of installing proprietary software from AMD that complicates your keeping current with updates, you'll need to do some upgrading. Start by either installing a backport kernel, or upgrading to Debian Testing (Trixie). The kernel may be all that's necessary.

[Debuser21215]

Thank you, I will try backport thing.

[Debuser21215]

I think I will just stick with windows 10.

I installed test - trixie release, I can see kernel version is newer, but still same problem.

[mrmazda]

Likely it's solvable if you wish to try. If you're not in the mood now, maybe try again in 6 months, when your GPU has been around long enough for more testing by those with problem solving skills, and Trixie has gained a still newer kernel. Win10 EOL is expected in around 20 months, so putting off getting your feet wet in Linux for much longer may not be in your long term interest.

There are other distros using even newer kernels, and newer graphics system software. You might try a live version of one, no installation needed, just burn to USB stick or DVD. openSUSE Tumbleweed is one of those I use.

If Trixie is still installed, upgrading to Sid is rather simple, possibly easier than choosing an .iso from some other distro and burning it.