The most likely explanation here is that the kernel is not offering 4K
as a supported resolution, which you can check by running:
grep . /sys/class/drm/*/modes
If it's not listed there then you need a higher quality HDMI 2.0 cable.
Or even better to use DisplayPort instead.
** Package changed: xorg (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/2004613
Title:
Intel UHD Graphics 770 (ADL-S GT1) max res 1920x1080, should be 4K
Status in linux package in Ubuntu:
Incomplete
Bug description:
This GPU should be capable of 4K resolution, but it's unavailable.
Tried manually adding modeline with
xrandr --newmode "3840x2160_60.00" 712.75 3840 4160 4576 5312 2160 2163
2168 2237 -hsync +vsync
xrandr --addmode HDMI-3 "3840x2160_60.00"
Still fails to set 4K resolution.
Upgraded to signed kernel 5.19.0-28-generic #29~22.04.1-Ubuntu, added
linux-modules-extra, ensured that system is loading i915 kernel
module.
inxi -G
Graphics:
Device-1: Intel driver: i915 v: kernel
Display: x11 server: X.Org v: 1.21.1.3 driver: X: loaded: modesetting
unloaded: fbdev,vesa gpu: i915 resolution: 1920x1080~60Hz
OpenGL: renderer: Mesa Intel UHD Graphics 770 (ADL-S GT1)
v: 4.6 Mesa 22.0.5
lspci -k | head -10
00:00.0 Host bridge: Intel Corporation Device 4650 (rev 05)
Subsystem: Dell Device 0ac5
00:02.0 VGA compatible controller: Intel Corporation Device 4690 (rev 0c)
Subsystem: Dell Device 0ac5
Kernel driver in use: i915
Kernel modules: i915
xrandr
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 disconnected (normal left inverted right x axis y axis)
DP-2 disconnected (normal left inverted right x axis y axis)
HDMI-2 disconnected (normal left inverted right x axis y axis)
HDMI-3 connected primary 1920x1080+0+0 (normal left inverted right x axis y
axis) 800mm x 450mm
1920x1080 60.00* 59.94 30.00 24.00 29.97 23.98
1920x1080i 60.00 59.94
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 59.90
1280x960 60.00
1360x768 60.02
1280x800 59.91
1152x864 75.00
1280x720 60.00 30.00 59.94 29.97 24.00 23.98
1024x768 75.03 70.07 60.00
800x600 72.19 75.00 60.32
720x480 60.00 59.94
720x480i 60.00 59.94
640x480 75.00 72.81 60.00 59.94
720x400 70.08
3840x2160_60.00 59.98 # <--- manually configured
xrandr --output HDMI-3 --mode 3840x2160_60.00
xrandr: Configure crtc 0 failed
ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 5.19.0-28.29~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-28-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: KDE
Date: Thu Feb 2 22:00:36 2023
DistUpgraded: 2023-01-28 19:49:57,594 DEBUG Running PostInstallScript:
'/usr/lib/ubuntu-advantage/upgrade_lts_contract.py'
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GraphicsCard:
Intel Corporation Device [8086:4690] (rev 0c) (prog-if 00 [VGA controller])
Subsystem: Dell Device [1028:0ac5]
InstallationDate: Installed on 2020-07-18 (929 days ago)
InstallationMedia: Kubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Lsusb:
Bus 002 Device 002: ID 0480:0110 Toshiba America Inc External USB 3.0
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 0489:e0c8 Foxconn / Hon Hai Wireless_Device
Bus 001 Device 002: ID 248a:8367 Maxxter Telink Wireless Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. OptiPlex 3000
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-28-generic
root=/dev/mapper/vgkubuntu-root ro nosplash
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to jammy on 2023-01-29 (5 days ago)
dmi.bios.date: 05/18/2022
dmi.bios.release: 1.1
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.60
dmi.board.name: 057FFP
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 3
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.1.60:bd05/18/2022:br1.1:svnDellInc.:pnOptiPlex3000:pvr:rvnDellInc.:rn057FFP:rvrA00:cvnDellInc.:ct3:cvr:sku0AC5:
dmi.product.family: OptiPlex
dmi.product.name: OptiPlex 3000
dmi.product.sku: 0AC5
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.110-1ubuntu1
version.libgl1-mesa-dri: libgl1-mesa-dri 22.0.5-0ubuntu0.3
version.libgl1-mesa-glx: libgl1-mesa-glx 22.0.5-0ubuntu0.3
version.xserver-xorg-core: xserver-xorg-core 2:21.1.3-2ubuntu2.5
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2build1
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