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rated 0 times [  0] [ 0]  / answers: 1 / hits: 9784  / 2 Years ago, mon, august 1, 2022, 2:00:18

I have a fresh install of Ubuntu 22.04 on a new laptop, with no other OS installed. When I connect to my monitor with the laptop open (so that the built-in display is active) everything freezes - I can't even move my mouse pointer. If I close the lid, the monitor works (the system responds and I can continue). How can I use both screens at the same time?


More information:



  • I have a Framework laptop and have followed Framework's Ubuntu 22.04 installation guide, installing the 22.04 LTS ISO using balenaEtcher

  • Laptop screen resolution is 2256 x 1504 (3:2)

  • My monitor is an ASUS ProArt Display PA278QV

  • Monitor resolution is 2560 x 1440 (16:9)

  • I'm connecting mini-DP (monitor-end) to DP (laptop-end) via a Framework-specific DisplayPort expansion card

  • The monitor works as one of multiple displays when connected to my Windows desktop PC

  • I have my laptop display set up to use 100% scale, but after connecting the monitor it reverts to 200%

  • After connecting via display port, my desktop background is displayed on the external monitor, so clearly Ubuntu starts to send some display data to it before things go wrong.

  • Sometimes some of the windows I have open on my desktop are displayed on the monitor, sometimes they remain on my laptop screen


Happy to share more information and diagnostics on request (wasn't sure what other information would be helpful). Thanks in advance for any answers or hints!


Update 1


When using x11 (enabled via instructions from linuxconfig.org), the monitor is not detected when plugged in.


The output from sudo lshw -c video is


  *-display                 
description: VGA compatible controller
product: TigerLake-LP GT2 [Iris Xe Graphics]
vendor: Intel Corporation
physical id: 2
bus info: pci@0000:00:02.0
logical name: /dev/fb0
version: 01
width: 64 bits
clock: 33MHz
capabilities: pciexpress msi pm vga_controller bus_master cap_list rom fb
configuration: depth=32 driver=i915 latency=0 mode=2256x1504 resolution=2256,1504 visual=truecolor xres=2256 yres=1504
resources: iomemory:600-5ff iomemory:400-3ff irq:190 memory:605c000000-605cffffff memory:4000000000-400fffffff ioport:3000(size=64) memory:c0000-dffff memory:4010000000-4016ffffff memory:4020000000-40ffffffff

Update 2


ubuntu-drivers list returns nothing.


The Additional Drivers tab of the Software & Updates application shows "No additional drivers available" - see screenshot of Additional Drivers tab of Software & Updates app (I don't have the reputation to embed images into posts). This is despite having the main, universe, restricted and multiverse package repositories enabled and a working internet connection. This happens with various choices of server.


Update 3


Reinstalling hasn't helped. Interestingly, when I run "Try Ubuntu" from the bootable USB device, I can connect the monitor and have Ubuntu working on both screens. It seems that, somehow, the problem is with the installed OS, rather than the OS itself.


Update 4


I've installed Ubuntu 20.04.4 and the laptop screen and monitor work together.


More From » multiple-monitors

 Answers
4

It turns out that the DisplayPort expansion card I was using was defective. After using a new expansion card, my laptop and monitor work together without any problems.


[#524] Tuesday, August 2, 2022, 2 Years  [reply] [flag answer]
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