Bug 437599

Summary:	Display configuration shows mismatch between resolution
Product:	[Plasma] KScreen	Reporter:	Andrea Ippolito <andrea.ippo>
Component:	common	Assignee:	kscreen-bugs-null <kscreen-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	meven29
Priority:	NOR
Version First Reported In:	5.21.4
Target Milestone:	---
Platform:	Ubuntu
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	screenshot

Description Andrea Ippolito 2021-05-24 09:52:50 UTC

Created attachment 138735 [details]
screenshot

SUMMARY
Display configuration shows mismatch between resolution

See screenshot here:
https://i.redd.it/2qkw2sjma8071.png
Reddit post: https://www.reddit.com/r/kde/comments/ngttkr/resolution_settings_bug/


STEPS TO REPRODUCE
I don't remember exactly how I ended up like this. I think I have set 125% scaling because FullHD at 100% was too small on my 13" screen.
Then I tried to go back to 100% but still got big fonts, hence also manually overrode font DPI to 96.
However now the settings menu is showing this mismatch between the selected resolution (1920x1200) and the one in the "layout preview" area.
This mismatch is staying there even if I change resolution, restore some custom scaling, toggle font DPI between 96 and 120dpi...basically none of the fiddling around I've tried seems to remove this weird resolution.
OBSERVED RESULT


EXPECTED RESULT
If 1920x1200 is selected from the dropdown, the layout preview above should display that resolution, not 1536x960


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.21.4 (Kubuntu 21.04 - 5.11.0-17-generic, X11)
(available in About System)
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
kscreen/hirsute,now 4:5.21.4-0ubuntu1 amd64 [installed,automatic]

Operating System: Kubuntu 21.04
KDE Plasma Version: 5.21.4
KDE Frameworks Version: 5.80.0
Qt Version: 5.15.2
Kernel Version: 5.11.0-17-generic
OS Type: 64-bit
Graphics Platform: X11
Processors: 8 × 11th Gen Intel® Core™ i5-11300H @ 3.10GHz
Memory: 7,5 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics



ADDITIONAL INFORMATION
Pls let me know if I can provide any logs/config files, I'm at your disposal.

Thanks!

Comment 1 Méven Car 2021-07-06 07:31:53 UTC

Well 1920x1200@1.25 is 1536x960, so the resolution is correct in fact after the scaling.

From a user perspective we might want not to match the logical size of the screen, and this would be a usability improvement.

What strikes me more, is the fact that the global scale progress bar is not at 125%.

Please not that global scale changes are only taken into account after a deconnection/reconnection under X (with Wayland it is directly applied).

Do you still the UI discrepancy after a deconnection/reconnection ?

Comment 2 Bug Janitor Service 2021-07-21 04:33:32 UTC

Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!

Comment 3 Andrea Ippolito 2021-07-21 10:08:23 UTC

Couldn´t reproduce, hence closing. Will reopen or file a new one if I manage to reproduce again and provide reliable steps.