qhd (joined) via hdmi 1.4 not working

[Andreas]

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

[Daniel van Vugt (vanvugt)]

Sounds like this might be another case of:

https://gitlab.gnome.org/GNOME/mutter/-/issues/182

[Andreas (blueeyedcreature)]

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.

hope this helps someone. I'll wait for a new driver/fix/kernel/ubuntu release (20 April still go? ) :)

Andreas

[Andreas (blueeyedcreature)]

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

[Andreas (blueeyedcreature)]

solution: I gave away the laptop.