@chewitt thank you, first I compiled the kernel for openSUSE Tumbleweed including the patch you mentioned, after booting with the patched kernel the display resolution was 3440x1440 but the refresh rate was at ~50Hz and not as expected at 60Hz, not sure are there other patches missing maybe?
Details:
root@Khadas:/home/khadas# dmesg
dmesg-patch.txt (50.4 KB)
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khadas:/home/amach # cat xrandr-patch.txt
Screen 0: minimum 16 x 16, current 3440 x 1440, maximum 32767 x 32767
HDMI-1 connected primary 3440x1440+0+0 (normal left inverted right x axis y axis) 800mm x 330mm
3440x1440 49.96*+
1920x1440 49.92
1600x1200 49.92
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khadas:/home/amach # cat inxi-Gxx-patch.txt
Graphics:
Device-1: meson-g12a-vpu driver: meson_drm v: kernel bus-ID: N/A
chip-ID: amlogic:ff900000
Device-2: meson-g12a-mali driver: panfrost v: kernel bus-ID: N/A
chip-ID: amlogic:ffe40000
Device-3: meson-g12a-dw-hdmi driver: meson_dw_hdmi v: kernel bus-ID: N/A
chip-ID: amlogic:ff600000
Display: wayland server: Xwayland v: 24.1.8 compositor: gnome-shell
v: 49.2 driver: gpu: meson-drm display-ID: 0
Monitor-1: HDMI-A-1 model: Dell U3415W res: 3440x1440 dpi: 109
diag: 865mm (34.1")
API: OpenGL v: 3.1 vendor: mesa v: 25.3.1 glx-v: 1.4 es-v: 3.1
direct-render: yes renderer: Mali-G52 (Panfrost)
device-ID: ffffffff:ffffffff display-ID: :0.0
API: EGL Message: EGL data requires eglinfo. Check --recommends.
Info: Tools: api: glxinfo x11: xprop,xrandr
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khadas:/home/amach # cat glxinfo-B-patch.txt
name of display: :0
display: :0 screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Mesa (0xffffffff)
Device: Mali-G52 (Panfrost) (0xffffffff)
Version: 25.3.1
Accelerated: yes
Video memory: 3785MB
Unified memory: yes
Preferred profile: core (0x1)
Max core profile version: 3.1
Max compat profile version: 3.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 3.1
OpenGL vendor string: Mesa
OpenGL renderer string: Mali-G52 (Panfrost)
OpenGL core profile version string: 3.1 Mesa 25.3.1
OpenGL core profile shading language version string: 1.40
OpenGL core profile context flags: (none)
OpenGL version string: 3.1 Mesa 25.3.1
OpenGL shading language version string: 1.40
OpenGL context flags: (none)
OpenGL ES profile version string: OpenGL ES 3.1 Mesa 25.3.1
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.10