Public bug reported:

When I connect my display link usb-c to hdmi, it is capable of 50hz, but
wont show image when set on 100hz. It used to work some days ago with
other adapters. Stopped working out of the no-where.

ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: xorg 1:7.7+23ubuntu3
ProcVersionSignature: Ubuntu 6.11.0-19.19~24.04.1-generic 6.11.11
Uname: Linux 6.11.0-19-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Wed Mar 12 22:39:01 2025
DistUpgraded: Fresh install
DistroCodename: noble
DistroVariant: ubuntu
DkmsStatus: evdi/1.14.8, 6.11.0-19-generic, x86_64: installed
ExtraDebuggingInterest: I just need to know a workaround
GraphicsCard:
 Intel Corporation Alder Lake-P GT1 [UHD Graphics] [8086:46a3] (rev 0c) 
(prog-if 00 [VGA controller])
   Subsystem: Lenovo Alder Lake-P GT1 [UHD Graphics] [17aa:3c45]
InstallationDate: Installed on 2025-01-23 (48 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 
(20240827.1)
MachineType: LENOVO 83BF
ProcEnviron:
 LANG=en_US.UTF-8
 PATH=(custom, no user)
 SHELL=/bin/bash
 TERM=xterm-256color
 XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-19-generic 
root=UUID=abc9007c-57cd-4363-8bba-849b2c646af5 ro quiet splash vt.handoff=7
SourcePackage: xorg
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/13/2024
dmi.bios.release: 1.38
dmi.bios.vendor: LENOVO
dmi.bios.version: LACN38WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76463 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: IdeaPad Slim 5 14IAH8
dmi.ec.firmware.release: 1.38
dmi.modalias: 
dmi:bvnLENOVO:bvrLACN38WW:bd12/13/2024:br1.38:efr1.38:svnLENOVO:pn83BF:pvrIdeaPadSlim514IAH8:rvnLENOVO:rnLNVNB161216:rvrSDK0T76463WIN:cvnLENOVO:ct10:cvrIdeaPadSlim514IAH8:skuLENOVO_MT_83BF_BU_idea_FM_IdeaPadSlim514IAH8:
dmi.product.family: IdeaPad Slim 5 14IAH8
dmi.product.name: 83BF
dmi.product.sku: LENOVO_MT_83BF_BU_idea_FM_IdeaPad Slim 5 14IAH8
dmi.product.version: IdeaPad Slim 5 14IAH8
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 24.2.8-1ubuntu1~24.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.2
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 1:1.0.17-2build1

** Affects: xorg (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug noble ubuntu wayland-session

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https://bugs.launchpad.net/bugs/2102171

Title:
  Screen goes black (external monitor via displaylink) when set on 100hz

Status in xorg package in Ubuntu:
  New

Bug description:
  When I connect my display link usb-c to hdmi, it is capable of 50hz,
  but wont show image when set on 100hz. It used to work some days ago
  with other adapters. Stopped working out of the no-where.

  ProblemType: Bug
  DistroRelease: Ubuntu 24.04
  Package: xorg 1:7.7+23ubuntu3
  ProcVersionSignature: Ubuntu 6.11.0-19.19~24.04.1-generic 6.11.11
  Uname: Linux 6.11.0-19-generic x86_64
  ApportVersion: 2.28.1-0ubuntu3.3
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CasperMD5CheckResult: pass
  CompositorRunning: None
  CurrentDesktop: ubuntu:GNOME
  Date: Wed Mar 12 22:39:01 2025
  DistUpgraded: Fresh install
  DistroCodename: noble
  DistroVariant: ubuntu
  DkmsStatus: evdi/1.14.8, 6.11.0-19-generic, x86_64: installed
  ExtraDebuggingInterest: I just need to know a workaround
  GraphicsCard:
   Intel Corporation Alder Lake-P GT1 [UHD Graphics] [8086:46a3] (rev 0c) 
(prog-if 00 [VGA controller])
     Subsystem: Lenovo Alder Lake-P GT1 [UHD Graphics] [17aa:3c45]
  InstallationDate: Installed on 2025-01-23 (48 days ago)
  InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64 
(20240827.1)
  MachineType: LENOVO 83BF
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.11.0-19-generic 
root=UUID=abc9007c-57cd-4363-8bba-849b2c646af5 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/13/2024
  dmi.bios.release: 1.38
  dmi.bios.vendor: LENOVO
  dmi.bios.version: LACN38WW
  dmi.board.asset.tag: NO Asset Tag
  dmi.board.name: LNVNB161216
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0T76463 WIN
  dmi.chassis.asset.tag: NO Asset Tag
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: IdeaPad Slim 5 14IAH8
  dmi.ec.firmware.release: 1.38
  dmi.modalias: 
dmi:bvnLENOVO:bvrLACN38WW:bd12/13/2024:br1.38:efr1.38:svnLENOVO:pn83BF:pvrIdeaPadSlim514IAH8:rvnLENOVO:rnLNVNB161216:rvrSDK0T76463WIN:cvnLENOVO:ct10:cvrIdeaPadSlim514IAH8:skuLENOVO_MT_83BF_BU_idea_FM_IdeaPadSlim514IAH8:
  dmi.product.family: IdeaPad Slim 5 14IAH8
  dmi.product.name: 83BF
  dmi.product.sku: LENOVO_MT_83BF_BU_idea_FM_IdeaPad Slim 5 14IAH8
  dmi.product.version: IdeaPad Slim 5 14IAH8
  dmi.sys.vendor: LENOVO
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.122-1~ubuntu0.24.04.1
  version.libgl1-mesa-dri: libgl1-mesa-dri 24.2.8-1ubuntu1~24.04.1
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.xserver-xorg-core: xserver-xorg-core 2:21.1.12-1ubuntu1.2
  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 
1:1.0.17-2build1

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