https://bugs.kde.org/show_bug.cgi?id=448398
Bug ID: 448398
Summary: [Feature Request] Ability to switch between
resolutions like X11 / Windows
Product: kwin
Version: 5.23.5
Platform: Other
OS: Linux
Status: REPORTED
Severity: wishlist
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: cai...@gmail.com
Target Milestone: ---
SUMMARY
Today on wayland it is not possible to switch between resolutions that the
display's manufacturer didn't report to the operating system (see bug #448091)
however there are some setups of which this feature would be VERY interesting,
like in the scenario of some XPS laptops by dell (including my model 9560)
where the display reports only 3840x2160 as the resolution and all we can
change is the scale.
However, as the iGPU for this machine is an Intel UHD Graphics 630 (same as 15"
inch macbook pros of 2017 and 2018), they seem not capable enough to run smooth
animations at that resolution. In macOS they "fixed" this by restricting the
eDP resolution to 2,880x1,800, and only having vendor specific resolutions on
external displays (which uses the dGPU connection instead of iGPU).
Windows "fixed" this the same way X11 did, by creating dummy resolutions you
can choose from.
The only Desktop Protocol which seems not to have any fixes regarding this
issue is Linux's Wayland. Today we can use X11 and be restricted to a lot of
things, including poor touchscreen support and very bad implementations of
HiDPI, but if we move on to Wayland with KDE, we are going to face a HUGE
slowdown on some iGPUs like mine (you see, my laptop is not THAT old).
An implementation of dummy screen resolutions that could be triggered by a
simple checkbox would totally fix it.
I know it will require some effort from you guys but I think it would
definitely worth it.
STEPS TO REPRODUCE
1. Open System Settings
2. Open Display Configurations
3. Try to switch between resolutions from the Drop-Down menu
OBSERVED RESULT
There are no other options on the drop-down menu
EXPECTED RESULT
It should have some options to the drop-down menu (at least resolutions that
would be considered HiDPI)
SOFTWARE/OS VERSIONS
Windows:
macOS:
Linux/KDE Plasma: Kubuntu 21.10
(available in About System)
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
Installed via recommended Kubuntu backports.
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