Bugzilla – Bug 1220302
MComix smart scroll up doesn't work on wayland
Last modified: 2024-05-21 07:56:56 UTC
Operating System: openSUSE Tumbleweed 20240223 KDE Plasma Version: 5.27.10 KDE Frameworks Version: 5.115.0 Qt Version: 5.15.12 Kernel Version: 6.7.5-1-default (64-bit) Graphics Platform: Wayland Processors: 12 × AMD Ryzen 5 5625U with Radeon Graphics Memory: 13,5 GiB of RAM Graphics Processor: AMD Radeon Graphics Manufacturer: LENOVO Product Name: 82SG System Version: IdeaPad 5 15ABA7 Issue description: When on wayland, smart scroll in MComix doesn't work as expected, as it's only possible to smart scroll down, but not up. Observed behavior: Default keyboard shortcut for smart scroll up (shift + space) does the same thing as smart scroll down (space). Expected behavior: Smart scroll down scrolls down, smart scroll up scrolls up. Additional information: On X11 smart scrolling works as expected. Other keyboard shortcuts that also use the shift key work properly on wayland and X11.
Sorry for the late replay. I tested smart scroll up (shift + space) and it works with both X11 and Wayland on current tumbleweed (plasma6). Do you still have the issue?
(In reply to Giacomo Comes from comment #1) > Sorry for the late replay. > I tested smart scroll up (shift + space) and it works with both X11 and > Wayland > on current tumbleweed (plasma6). > Do you still have the issue? It still doesn't work on wayland plasma 6 with the default shift + space. What I found out though is that when I set it to something else (I set it to ctrl + space for testing), it works properly.
I tested * Xorg/xfce > weston[X11 backend] > mcomix[Wayland backend] * fbcon > weston[libdrm backend] > mcomix[Wayland backend] in both cases, Space goes forward, and Ctrl-Space goes backward as expected. Versions: Tumbleweed 20240404(not pure/mixed with 20240419), weston-13.0.0, libinput-1.25.0, libxkbcommon-1.7.0, mcomix-2.3.0
...shift-space that is.
(In reply to piotrus3g from comment #2) > It still doesn't work on wayland plasma 6 with the default shift + space. > What I found out though is that when I set it to something else (I set it to > ctrl + space for testing), it works properly. That sounds more like the combination shift + space is intercepted by some other application and never reaches mcomix. You could try a fresh installation (only kde role + mcomix) and test the issue. If you don't want to wipe your current installation you could use a spare PC, a spare hard disk or a virtual machine. If, in the fresh installation, you don't see the problem, then the issue you observe is most probably due to your current setup.
Isn't it IBus or such input engine that catches that key combo?
(In reply to Takashi Iwai from comment #6) > Isn't it IBus or such input engine that catches that key combo? I haven't dealt with IBus in a long time. After enabling it, I verified that it does not interfere with mcomix (shift + space still works). Also while in the past the combination shift + space probably was used to to select the next input method, nowadays such combination is super + space.
Then I guess it's rather an issue in Wayland implementation, not an issue of the application side. Tossed back.
The ibus theory is easy to test: just stop ibus.