https://bugs.kde.org/show_bug.cgi?id=471262
Bug ID: 471262
Summary: kscreen crashes after sleep
Classification: Plasma
Product: KScreen
Version: 5.27.5
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
***
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See
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***
I have a laptop that is attacked to two monitors (1440p@75Hz), with only the
external monitors being used when in this setup.
If the laptop goes to sleep and re-awakes one of the monitors suddenly has a
lower resolution and refresh rate than before. This decrease starts at 1440p
and goes from 1080p to 1050p eventually. I tried to use **kscreen-doctor** to
investigate the issue but when trying to output the "broken" monitor's details
**kscreen-doctor** always end with the core being dumped.
STEPS TO REPRODUCE
1. Attach two external displays
2. Let the laptop go to sleep
3. Wake the laptop up
OBSERVED RESULT
One of the external monitors has a lower resolution and refresh rate than its
default.
EXPECTED RESULT
All external monitors use the setting 1440p@75Hz
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: endeavour OS
(available in About System)
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
ADDITIONAL INFORMATION
```
# kscreen-doctor output
kscreen-doctor -o
Output: 1 eDP-1 disabled connected priority 0 Panel Modes: 0:2880x1800@90*!
1:1600x1200@60 2:1280x1024@60 3:1024x768@60 4:2560x1600@60 5:1920x1200@60
6:1280x800@60 7:2880x1620@60 8:2560x1440@60 9:1920x1080@60 10:1600x900@60
11:1368x768@60 12:1280x720@60 Geometry: 0,0 1920x1200 Scale: 1.5 Rotation: 1
Overscan: 0 Vrr: incapable RgbRange: Automatic
Output: 2 DP-1 enabled connected priority 2 DisplayPort Modes: 0:1920x1080@60
1:1920x1080@60! 2:1920x1080@60 3:1920x1080@50 4:1680x1050@60* 5:1280x1024@75
6:1280x1024@60 7:1440x900@60 8:1280x960@60 9:1280x800@60 10:1152x864@75
11:1280x720@60 12:1280x720@60 13:1280x720@60 14:1280x720@50 15:1280x720@50
16:1440x576@50 17:1440x576@50 18:1024x768@75 19:1024x768@70 20:1024x768@60
21:1440x480@60 22:1440x480@60 23:1440x480@60 24:1440x480@60 25:832x624@75
26:800x600@75 27:800x600@72 28:800x600@60 29:800x600@56 30:720x576@50
31:720x576@50 32:720x576@50 33:720x480@60 34:720x480@60 35:720x480@60
36:720x480@60 37:720x480@60 38:640x480@75 39:640x480@67 40:640x480@60
41:640x480@60 42:640x480@60 43:720x400@70 Geometry: 0,0 1680x1050 Scale: 1
Rotation: 1 Overscan: 0 Vrr: incapable RgbRange: Automatic
Output: 3 HDMI-A-1 enabled connected priority 1 HDMI Modes: 0:2560x1440@75*!
1:2560x1440@60 2:1920x1080@60 3:1920x1080@60 4:1920x1080@60 5:1920x1080@50
6:1680x1050@60 7:1280x1024@75 8:1280x1024@60 9:1440x900@60 10:1280x960@60
11:1280x800@60 12:1152x864@75 13:1280x720@60 14:1280x720@60 15:1280x720@60
16:1280x720@50 17:1280x720@50 18:1440x576@50 19:1440x576@50 20:1024x768@75
21:1024x768@70 22:1024x768@60 23:1440x480@60 24:1440x480@60 25:1440x480@60
26:1440x480@60 27:832x624@75 28:800x600@75 29:800x600@72 30:800x600@60
31:800x600@56 32:720x576@50 33:720x576@50 34:720x576@50 35:720x480@60
36:720x480@60 37:720x480@60 38:720x480@60 39:720x480@60 40:640x480@75
41:640x480@67 42:640x480@60 43:640x480@60 44:640x480@60 45:720x400@70 Geometry:
1680,0 2560x1440 Scale: 1 Rotation: 1 Overscan: 0 Vrr: incapable RgbRange:
Automatic
malloc_consolidate(): unaligned fastbin chunk detected
[1] 66238 IOT instruction (core dumped) kscreen-doctor -o
```
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