Bug 2156230 - KDE stopped working with multiple monitors
Summary: KDE stopped working with multiple monitors
Keywords:
Status: CLOSED EOL
Alias: None
Product: Fedora
Classification: Fedora
Component: kde-settings
Version: 37
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: ---
Assignee: Rex Dieter
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-12-25 19:14 UTC by brian
Modified: 2023-12-06 11:49 UTC (History)
5 users (show)

Fixed In Version:
Doc Type: ---
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-12-06 11:49:00 UTC
Type: Bug
Embargoed:


Attachments (Terms of Use)
Output of the dnf history info of transaction 192. (82.24 KB, text/plain)
2022-12-25 19:14 UTC, brian
no flags Details

Description brian 2022-12-25 19:14:11 UTC
Created attachment 1934462 [details]
Output of the dnf history info  of transaction 192.

Description of problem:
After dnf update on 12/24/2024, my workstation with 2 3840x2160 monitors stopped working driving the second monitor.  The Display Config utility sees the second monitor, but its not Enabled.  When I try to re-enable it, no video shows on the monitor and eventually the utility will report "An output has been removed.  Settings have been reloaded".

If I turn off & unhook the working monitor, the second monitor works fine.  If I launch GNOME instead of KDE (X11), the both monitors work fine.  Using Wayland has no effect on the problem.

On bootup, both monitors show the boot sequence, the GDM login screen enables both monitors working, but when KDE starts it quickly turns the second monitor off before the desktop comes up.

So clearly there is not a cabling or card problem.

I've run this monitor configuration for multiple years across several upgrades and many updates without any problems.  Suddenly on 12/24 it broke.

Version-Release number of selected component (if applicable):
I honestly don't know what package is at fault.  My 12/24 upgrade included 445 packages according to the dnf history.  I don't see any kde components in the list, but xorg-x11 and akmod-nvidia updates were in the list.  I'll attach a list of the dnf transaction to this report.

How reproducible:
100% after the upgrade, I've not been able to correct the problem.

Steps to Reproduce:
1.  Upgrade.
2.  Reboot.
3.  Login with KDE

Actual results:
Only single monitor is activated.

Expected results:
Desktop spanning across 2 monitors.

Additional info:
Graphics card is NVidia 1080, both monitors hooked up with DisplayPort cables.

Comment 1 Aoife Moloney 2023-11-23 00:50:32 UTC
This message is a reminder that Fedora Linux 37 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora Linux 37 on 2023-12-05.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
'version' of '37'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, change the 'version' 
to a later Fedora Linux version. Note that the version field may be hidden.
Click the "Show advanced fields" button if you do not see it.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora Linux 37 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora Linux, you are encouraged to change the 'version' to a later version
prior to this bug being closed.

Comment 2 Aoife Moloney 2023-12-06 11:49:00 UTC
Fedora Linux 37 entered end-of-life (EOL) status on None.

Fedora Linux 37 is no longer maintained, which means that it
will not receive any further security or bug fix updates. As a result we
are closing this bug.

If you can reproduce this bug against a currently maintained version of Fedora Linux
please feel free to reopen this bug against that version. Note that the version
field may be hidden. Click the "Show advanced fields" button if you do not see
the version field.

If you are unable to reopen this bug, please file a new report against an
active release.

Thank you for reporting this bug and we are sorry it could not be fixed.


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