ohai.

so I tried to start into "wayland" session but the option is not there
the only options are "Gonome on Xorg". "Gnome Classic" and "Ubuntu" - all three 
run xorg - no wayland.
$ echo $XDG_SESSION_TYPE
x11

None of these three can run a joined display. Mirror (2 x 1080p) works well.
Also Extending the screen when running the screen in non-native (1080p) works. 

so I started experimenting - used a different hdmi cable (1.4 with ethernet) 
but same
also used a HDMI to DP adapter and connected that - nothing. 
then I tried running the screen as a "single" display - that also failed,

Now, I am running the proprietary nvidia driver (so I can switch intel
and nvidia, I think it's called PRIME) - I switched to Intel only but
same. Can't run the screen in QHD resolution, be it joined or single.

UPDATE 26 April

updated to Ubuntu 20.04 and still same. 
mirror and joined works in xorg and wayland (same)
but the screen does not work in QHD (2560x1440) in either display manager and 
not as "single display" either. 
both in "intel only" and "nvidia" mode. (prime)
using proprietary driver I can choose. nouveau does not allow me to chose, also 
doesn't work in QHD.

anything I can do to help?

cheers and thanks for all the work


Andreas

Andreas

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You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xorg-server in Ubuntu.
https://bugs.launchpad.net/bugs/1872164

Title:
  qhd (joined) via hdmi 1.4 not working

Status in xorg-server package in Ubuntu:
  New

Bug description:
  bought a shiny new QHD screen and connected via hdmi
  it works in single screen mode and in mirror setup but joining/extending does 
not. it just stays black. don't know how to troubleshoot besides journal 
  model is Philips 272B8Q
  resolution 2560 x 1440

  ProblemType: Bug
  DistroRelease: Ubuntu 19.10
  Package: xorg 1:7.7+19ubuntu12
  ProcVersionSignature: Ubuntu 5.3.0-45.37-generic 5.3.18
  Uname: Linux 5.3.0-45-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  .proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: 
'/proc/driver/nvidia/gpus/0000:01:00.0'
  .proc.driver.nvidia.registry: Binary: ""
  .proc.driver.nvidia.suspend: suspend hibernate resume
  .proc.driver.nvidia.suspend_depth: default modeset uvm
  .proc.driver.nvidia.version:
   NVRM version: NVIDIA UNIX x86_64 Kernel Module  435.21  Sun Aug 25 08:17:57 
CDT 2019
   GCC version:  gcc version 9.2.1 20191008 (Ubuntu 9.2.1-9ubuntu2)
  ApportVersion: 2.20.11-0ubuntu8.8
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  CompositorRunning: None
  CurrentDesktop: GNOME
  Date: Sat Apr 11 08:18:36 2020
  DistUpgraded: Fresh install
  DistroCodename: eoan
  DistroVariant: ubuntu
  DkmsStatus:
   nvidia, 435.21, 5.3.0-42-generic, x86_64: installed
   nvidia, 435.21, 5.3.0-45-generic, x86_64: installed
   nvidia, 435.21, 5.3.0-46-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA 
controller])
     Subsystem: Dell UHD Graphics 630 (Mobile) [1028:0819]
     Subsystem: Dell GM108M [GeForce MX130] [1028:0819]
  InstallationDate: Installed on 2020-03-30 (11 days ago)
  InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
  MachineType: Dell Inc. Latitude 5591
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.3.0-45-generic 
root=UUID=68c5a16c-e29b-4e94-b10c-a14954bc07f3 ro quiet splash vt.handoff=7
  SourcePackage: xorg
  Symptom: display
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 11/11/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.11.1
  dmi.board.name: 0DVVG1
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 10
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: 
dmi:bvnDellInc.:bvr1.11.1:bd11/11/2019:svnDellInc.:pnLatitude5591:pvr:rvnDellInc.:rn0DVVG1:rvrA00:cvnDellInc.:ct10:cvr:
  dmi.product.family: Latitude
  dmi.product.name: Latitude 5591
  dmi.product.sku: 0819
  dmi.sys.vendor: Dell Inc.
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.99-1ubuntu1
  version.libgl1-mesa-dri: libgl1-mesa-dri 19.2.8-0ubuntu0~19.10.3
  version.libgl1-mesa-glx: libgl1-mesa-glx N/A
  version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
  version.xserver-xorg-core: xserver-xorg-core 2:1.20.5+git20191008-0ubuntu1
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.0.1-1ubuntu1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20190815-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

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