Bug 468113 - On X11, HDMI second monitor is refreshing only when cursor is on its desktop
Summary: On X11, HDMI second monitor is refreshing only when cursor is on its desktop
Status: NEEDSINFO FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: multi-screen (show other bugs)
Version: 5.27.3
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords: regression, X11-only
: 468081 (view as bug list)
Depends on:
Blocks:
 
Reported: 2023-04-03 09:37 UTC by shinjii
Modified: 2025-04-12 02:06 UTC (History)
3 users (show)

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Latest Commit:
Version Fixed In:
Sentry Crash Report:

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Description shinjii 2023-04-03 09:37:45 UTC 
STEPS TO REPRODUCE
1.  Upgraded KDE from 5.27.2 to 5.27.3
2. Upgraded Nvidia official drivers to 530.41.03

OBSERVED RESULT
I don't know if it's bug from KDE Plasma or Nvidia Drivers because both were upgraded on the same time.
Anyway - on Plama Session in X11 when I restart notebook - second monitor is black - when I move cursor on it - it's waking up lol and when I'm logged in when I try to open some windows/programs on second monitor - they  only show after I move cursor to that second desktop... so it's not visible if I'm not move it in... it's weird - it looks like screen is freezing while cursor is not on that second screen/desktop.... because when I try for example play video from youtube on that second screen it's freezing while i'm not moving mouse on that desktop lol.... weird.

EXPECTED RESULT
Refreshing/not freezing as on 5.27.2 : )

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora 37
(available in About System)
KDE Plasma Version: 5.27.3
KDE Frameworks Version: 5.104.0
Qt Version: 5.15.8

ADDITIONAL INFORMATION
Comment 1 shinjii 2023-04-03 10:46:46 UTC 
UPDATE: it's working fine on Wayland Session so it's something with X11.
Comment 2 David Edmundson 2023-04-03 11:07:07 UTC 
*** Bug 468081 has been marked as a duplicate of this bug. ***
Comment 3 shinjii 2023-04-11 10:10:47 UTC 
Update: On Plasma 5.27.4 still broken ;)
Comment 4 TraceyC 2025-02-24 17:59:18 UTC 
Adding the x11-only keyword
Comment 5 Fushan Wen 2025-04-12 02:06:37 UTC 
Is it still reproducible? I cannot reproduce