https://bugs.kde.org/show_bug.cgi?id=504837
Bug ID: 504837
Summary: Screen went to 640x480 after lockscreen
Classification: Plasma
Product: kwin
Version First 6.3.5
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: doug...@gmail.com
Target Milestone: ---
SUMMARY
First time that it has happened. Desktop when to lock screen, the main monitor
went to blackscreen and a bit after without me doing anything came back as big
font while locked, only the main monitor.
I then unlocked and it stayed as it showed. Working, out of monitor order, but
changed.
I then checked the display configuration, and it was because the monitor went
back to 640x480 with a different name. And with no other resolution available,
nor the higher refresh rate or HDR.
STEPS TO REPRODUCE
1. Not sure
OBSERVED RESULT
I described in the summary.
EXPECTED RESULT
To continue working normally.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Arch Linux based distro, all updated (wayland)
KDE Plasma Version: 6.3.5
KDE Frameworks Version: 6.14.0
Qt Version: 6.9.0
ADDITIONAL INFORMATION
```
Output: 2 DP-2
enabled
connected
priority 2
DisplayPort
Modes: 31:640x480@60*!
Geometry: 1920,0 640x480
Scale: 1
Rotation: 1
Overscan: 0
Vrr: Automatic
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
Color profile source: sRGB
Color power preference: prefer efficiency and performance
Brightness control: supported, set to 100% and dimming to 100%
```
This is the correct output from the same monitor.
```
Output: 1 DP-2
enabled
connected
priority 1
DisplayPort
Modes: 1:2560x1440@60! 2:2560x1440@360* 3:2560x1440@240
4:2560x1440@144 5:2560x1440@120 6:2560x1440@100 7:2368x1332@360
8:2368x1332@240 9:1920x1080@360 10:1920x1080@240 11:1920x1080@120
12:1024x768@60 13:800x600@60 14:640x480@60
Geometry: 0,0 2560x1440
Scale: 1
Rotation: 1
Overscan: 0
Vrr: Never
RgbRange: unknown
HDR: enabled
SDR brightness: 650 nits
SDR gamut wideness: 20%
Peak brightness: 673 nits
Max average brightness: 400 nits
Min brightness: 0.0994 nits
Wide Color Gamut: enabled
ICC profile: /home/user/.dotfiles/configs/pg27aqn_color_profile.icm
Color profile source: ICC
Color power preference: prefer efficiency and performance
Brightness control: supported, set to 50% and dimming to 100%
```
Last logs in time range of when it happened was.
```
mai 26 16:10:06 desktop-pc kernel: kauditd_printk_skb: 4781 callbacks
suppressed
mai 26 16:14:28 desktop-pc kernel: kauditd_printk_skb: 183 callbacks suppressed
mai 26 16:14:28 desktop-pc plasmashell[3411]: kf.plasma.quick: Exposed with no
visual parent. Window positioning broken.
mai 26 16:14:28 desktop-pc plasmashell[3411]: kf.plasma.quick: Exposed with no
visual parent. Window positioning broken.
mai 26 16:14:28 desktop-pc plasmashell[3411]: error creating screencast "Could
not find window id {54f517f4-eab3-4415-8fef-e5f6ac2eeea9}"
mai 26 16:14:29 desktop-pc kwin_wayland[3290]: kwin_core:
KWin::LayerShellV1Window doesn't support setting maximized state
mai 26 16:14:29 desktop-pc kwin_wayland[3290]: kwin_core:
KWin::LayerShellV1Window doesn't support setting fullscreen state
mai 26 16:14:30 desktop-pc plasmashell[3411]: error creating screencast "Could
not find window id {54f517f4-eab3-4415-8fef-e5f6ac2eeea9}"
mai 26 16:14:30 desktop-pc org_kde_powerdevil[3458]: No traced function stack
for current thread
mai 26 16:14:31 desktop-pc org_kde_powerdevil[3458]: No traced function stack
for current thread
mai 26 16:14:31 desktop-pc kwin_wayland[3290]: kwin_core:
KWin::LayerShellV1Window doesn't support setting maximized state
mai 26 16:14:31 desktop-pc kwin_wayland[3290]: kwin_core:
KWin::LayerShellV1Window doesn't support setting fullscreen state
mai 26 16:14:31 desktop-pc plasmashell[3411]: error creating screencast "Could
not find window id {54f517f4-eab3-4415-8fef-e5f6ac2eeea9}"
mai 26 16:14:32 desktop-pc org_kde_powerdevil[3458]: [ 3581]
(i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept
for 1000 millisec
mai 26 16:14:32 desktop-pc kwin_wayland[3290]: kwin_core: EDID colorimetry
xy(0.330078, 0.297852) xy(0.597656, 0.149414) xy(0.0605469, 0.314453)
xy(0.328125, 0.00292969) is is invalid
mai 26 16:14:32 desktop-pc kwin_wayland[3290]: kwin_core: EDID colorimetry
xy(0.330078, 0.297852) xy(0.597656, 0.149414) xy(0.0605469, 0.314453)
xy(0.328125, 0.00292969) is is invalid
mai 26 16:14:33 desktop-pc org_kde_powerdevil[3458]: [ 3581]
(i2c_check_open_bus_alive) Retrying i2c_check_edid_exists_by_dh() (c): Slept
for 1000 millisec
mai 26 16:14:33 desktop-pc org_kde_powerdevil[3458]: [ 3581] /dev/i2c-3:
Checking EDID succeeded after 4 tries (G)
mai 26 16:14:33 desktop-pc org_kde_powerdevil[3458]: org.kde.powerdevil:
[DDCutilDisplay]: ddca_get_non_table_vcp_value -5
mai 26 16:14:33 desktop-pc org_kde_powerdevil[3458]: No traced function stack
for current thread
mai 26 16:14:34 desktop-pc org_kde_powerdevil[3458]: No traced function stack
for current thread
mai 26 16:14:34 desktop-pc kernel: kauditd_printk_skb: 464 callbacks suppressed
mai 26 16:14:56 desktop-pc kernel: kauditd_printk_skb: 41 callbacks suppressed
mai 26 16:15:00 desktop-pc kscreenlocker_greet[5491]: qt.qpa.wayland: Could not
create EGL surface (EGL error 0x3003)
mai 26 16:15:00 desktop-pc kscreenlocker_greet[5491]: qt.qpa.wayland: Could not
create EGL surface (EGL error 0x3003)
mai 26 16:15:00 desktop-pc kscreenlocker_greet[5491]: Failed to write to the
pipe: Bad file descriptor.
mai 26 16:15:04 desktop-pc kernel: kauditd_printk_skb: 1560 callbacks
suppressed
mai 26 16:15:04 desktop-pc kwin_wayland[3290]: Module 'org.kde.kwin.decoration'
does not contain a module identifier directive - it cannot be protected from
external registrations.
mai 26 16:15:10 desktop-pc kernel: kauditd_printk_skb: 4588 callbacks
suppressed
mai 26 16:15:15 desktop-pc kernel: kauditd_printk_skb: 3026 callbacks
suppressed
mai 26 16:15:15 desktop-pc kwin_wayland[3290]: kf.windowsystem: static bool
KX11Extras::mapViewport() may only be used on X11
mai 26 16:15:20 desktop-pc kernel: kauditd_printk_skb: 434 callbacks suppressed
```
Here is a display configuration screenshot -
https://i.postimg.cc/bzWQrcS6/Screenshot-20250526-161907.png
--
You are receiving this mail because:
You are watching all bug changes.
