Lenovo Tinkpad T14-Gen3 (21AJ) display driver problem for Suse 15.4

English Hardware
#1

Hello,
my platform is openSUSE leap 15.4, for desktop session KDE plasma (Wayland) was installed. 1920x1080 (16:9) screen resolution is only supported, but my display resolution is 1920x1200. Plasma (X11) session not helps. Main problem is that I can not adjust Screen brightness (is much lower then in WIndows10 platform), also vertical scale is little ugly and circle looks like ellipse. Can somebody help me?

#2

Welcome to the opnSUSE forum.

I am afraid that I can not help you myself, but I assume that people here will be interested in the graphics card you use.

#3

Please start by sharing the output of these commands…

inxi -Ga
kscreen-doctor -o
#4

HWinfo
HWinfo1034×792 77.4 KB

#5

print
print972×521 253 KB

#6

I would suggest that you try Leap 15.5 to see if that works better.

It (15.5) has not yet been officially released, but it is close. It will be released in a few weeks. You have relatively new hardware, and 15.5 might have better drivers for that hardware.

There’s a live KDE iso that you can download for testing. If your graphics works better with that, then you could install 15.5.

Alternatively, you could just install a newer kernel with your 15.4 system.

See SDB:InstallNewerKernel for details on how to install a newer kernel.

1 Like
#7

There have been several threads here from Alder Lake users with the same problem. All were satisfied by following the advice nrickert gave here in comment #6: either switch to 15.5, or install a newer kernel. I suggest switching to 15.5, as it will be changed only very minimally between now and its official release in less than a month, and if you were to find any problem with it, the developers would want to know about it ASAP to ensure a fix can be found and applied ASAP. One big difference between 15.4 and 15.5 is support for newer hardware like yours. Alder Lake graphics represent a much bigger change from earlier Intel generations than typical of the past, significant redesign rather than mere evolution.

#8

Hi
I see https://linux-hardware.org/?id=pci:8086-4628-17aa-50a0

I have one of these https://linux-hardware.org/?id=pci:8086-46d1-0301-02f3 running on MicroOS Desktop though…

System:
  Host: bert Kernel: 6.3.1-2-default arch: x86_64 bits: 64 compiler: gcc
    v: 13.0.1

  Desktop: GNOME v: 44.1 tk: GTK v: 3.24.38 wm: gnome-shell dm: GDM v: 44.1
    Distro: openSUSE MicroOS

Graphics:
  Device-1: Intel Alder Lake-N [UHD Graphics] driver: i915 v: kernel ports:
    active: HDMI-A-1 empty: HDMI-A-2 bus-ID: 00:02.0 chip-ID: 8086:46d1
    class-ID: 0300
  Display: x11 server: X.Org v: 21.1.8 with: Xwayland v: 23.1.1
    compositor: gnome-shell driver: X: loaded: modesetting
    alternate: fbdev,intel,vesa dri: iris gpu: i915 display-ID: :0 screens: 1
  Screen-1: 0 s-res: 1920x1080 s-dpi: 96 s-size: 508x285mm (20.00x11.22")
    s-diag: 582mm (22.93")
  Monitor-1: HDMI-A-1 mapped: HDMI-1 model: AAA built: 2012 res: 1920x1080
    hz: 60 dpi: 85 size: 575x323mm (22.64x12.72") modes: max: 1920x1080
    min: 720x400
  API: OpenGL v: 4.6 Mesa 23.0.3 renderer: Mesa Intel Graphics (ADL-N)
    direct render: Yes