Public bug reported:
Connecting a second monitor through USB hub limits resolution to
1920x1080. Last week this same monitor, connecting to the same USB hub
(UGREEN Revodock 10-in-1) was displaying 3440x1440 without problem.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.8.0-90.91-generic 6.8.12
Uname: Linux 6.8.0-90-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
BootLog: Error: [Errno 13] S’ha denegat el permís: '/var/log/boot.log'
CasperMD5CheckResult: unknown
CompositorRunning: None
CurrentDesktop: GNOME
Date: Mon Dec 15 10:56:58 2025
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus:
virtualbox/7.0.16, 6.8.0-88-generic, x86_64: installed
virtualbox/7.0.16, 6.8.0-90-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation Alder Lake-UP3 GT2 [Iris Xe Graphics] [8086:46a8] (rev 0c)
(prog-if 00 [VGA controller])
Subsystem: Lenovo Alder Lake-UP3 GT2 [Iris Xe Graphics] [17aa:50a6]
InstallationDate: Installed on 2024-03-13 (642 days ago)
InstallationMedia: Ubuntu 23.10.1 "Mantic Minotaur" - Release amd64 (20231016.1)
MachineType: LENOVO 21B3000KSP
ProcEnviron:
LANG=ca_ES.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.8.0-90-generic
root=UUID=8fb7af86-3f88-4f8b-b558-0055afa35cb6 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/11/2025
dmi.bios.release: 1.29
dmi.bios.vendor: LENOVO
dmi.bios.version: R1UET52W (1.29 )
dmi.board.asset.tag: Not Available
dmi.board.name: 21B3000KSP
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76538 WIN
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: None
dmi.ec.firmware.release: 1.17
dmi.modalias:
dmi:bvnLENOVO:bvrR1UET52W(1.29):bd06/11/2025:br1.29:efr1.17:svnLENOVO:pn21B3000KSP:pvrThinkPadL13Gen3:rvnLENOVO:rn21B3000KSP:rvrSDK0T76538WIN:cvnLENOVO:ct10:cvrNone:skuLENOVO_MT_21B3_BU_Think_FM_ThinkPadL13Gen3:
dmi.product.family: ThinkPad L13 Gen 3
dmi.product.name: 21B3000KSP
dmi.product.sku: LENOVO_MT_21B3_BU_Think_FM_ThinkPad L13 Gen 3
dmi.product.version: ThinkPad L13 Gen 3
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.2
version.libgl1-mesa-dri: libgl1-mesa-dri 25.0.7-0ubuntu0.24.04.2
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.5
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.17-2ubuntu0.1
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble resolution ubuntu wayland-session
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https://bugs.launchpad.net/bugs/2136103
Title:
Limited resolutions in monitors connected via USB hub.
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