4K Aorus Monitor not detect to display in 4K 60Hz

[WayS]

Hi,
This is a new installation of Zorin 16.3 on my Dell Optiplex 7070.

When Windows 11 was installed the hardware, including the DP to HDMI cable worked perfectly fine to display at 4K 60Hz.
I can't figure out why this is not being detected.

Hardware setup:
System:
Host: zorin01 Kernel: 5.15.0-86-generic x86_64 bits: 64
Desktop: Gnome 3.38.4 Distro: Zorin OS 16.3
Machine:
Type: Desktop System: Dell product: OptiPlex 7070 v: N/A
serial: <superuser/root required>
Mobo: Dell model: 0C1R19 v: A01 serial: <superuser/root required>
UEFI: Dell v: 1.22.0 date: 07/03/2023
CPU:
Topology: 6-Core model: Intel Core i5-9500T bits: 64 type: MCP
L2 cache: 9216 KiB
Speed: 800 MHz min/max: 800/3700 MHz Core speeds (MHz): 1: 800 2: 800
3: 800 4: 800 5: 800 6: 800
Graphics:
Device-1: Intel UHD Graphics 630 driver: i915 v: kernel
Display: x11 server: X.Org 1.20.13 driver: i915 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 630 (CFL GT2) v: 4.6 Mesa 21.2.6

xrandr output:
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DP-1 disconnected (normal left inverted right x axis y axis)
HDMI-1 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 941mm x 529mm
1920x1080 60.00* 60.00 50.00 59.94 24.00 23.98
1680x1050 59.88
1280x1024 60.02
1440x900 59.90
1280x960 60.00
1152x864 75.00
1280x720 120.00 100.00 119.88 60.00 50.00 59.94
1024x768 75.03 60.00
800x600 75.00 60.32
720x576 50.00
720x480 60.00 59.94
640x480 75.00 60.00 59.94
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
DP-3 disconnected (normal left inverted right x axis y axis)
HDMI-3 disconnected (normal left inverted right x axis y axis)

Can someone please help me to get this to work, let me know what I'm doing wrong or have to do.

[Mr_Magoo]

Zorin menu > System Tools > Software Updater

Let it go through its usual checks for new software, then when it settles down, click the  Settings  button, then go to the  Additional Drivers  tab.

In there, if one is available, you should see other drivers you can use for your video card.

[Aravisian]

Your card definitely can support 4k resolution.
Have you tried using xrandr to addmode add the resolution and refresh rate that you need?

An example I snagged from the web here:

xrandr --newmode "2560x1440R"  241.50  2560 2608 2640 2720  1440 1443 1448 1481 +hsync -vsync
xrandr --addmode HDMI-1 2560x1440R
xrandr --output HDMI-1 --mode 2560x1440R

I am certain... but looking this over, it looks pretty strongly like this is an issue with Intel not supplying the proper scripting with their default drivers. I have found, searching the web, where this is present with Windows Users as well. The users must find a means of patching it themselves and Intel will, of course, not acknowledge the issue.

Hopefully, using xrandr may be all you need to get it working. Otherwise, it may come down to patching the kernel-included intel driver. If it comes to that, you may first try using a higher kernel and see if it has already been patched:

sudo add-apt-repository ppa:tuxinvader/lts-mainline

sudo apt update && sudo apt install linux-generic-6.03

[WayS]

Back from holiday, so followed the link and went through several of the options that was supplied there and eventually settled on the one that worked.

xrandr --newmode "2560x1440R" 241.50 2560 2608 2640 2720 1440 1443 1448 1481 +hsync -vsync
xrandr --addmode HDMI-1 2560x1440R
xrandr --output HDMI-1 --mode 2560x1440R

This will do for now until I can determine how to get 3840x2160 60Hz minimum. It's better now that than 1080p on my 43" screen.

Thanks