[kde] [Bug 471801] New: Upgrading 5.27.5 -> 5.27.6 broke dvorak layout and advanced keyboard behavior

[Adam Fontenot]

https://bugs.kde.org/show_bug.cgi?id=471801

            Bug ID: 471801
           Summary: Upgrading 5.27.5 -> 5.27.6 broke dvorak layout and
                    advanced keyboard behavior
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Archlinux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: adam.m.fontenot+kde at gmail.com
  Target Milestone: ---

Created attachment 160002
  --> https://bugs.kde.org/attachment.cgi?id=160002&action=edit
upgrade log from pacman

SUMMARY

I ran a full upgrade on my Arch Linux system. This upgraded KDE components from
5.27.5 to 5.27.6 and Qt from 5.15.9 to 5.15.10.

After this upgrade, my selected keyboard layout (dvorak) was broken in KDE.
Oddly, possibly as a side effect of this, all "advanced" keyboard behavior
(anything in the advanced tab of the keyboard KCM) was broken as well. For
example, I have the Caps Lock key configured to be an additional Menu key, but
pressing that key only activated caps lock after the upgrade.

I've included the full Pacman log from the upgrade in case it's somehow
relevant.

NOTES

 * I normally have a layout switcher with two layouts visible on my taskbar,
thanks to the keyboard layout widget. This widget was entirely hidden because
only one layout was active (US Qwerty).

 * Going into the keyboard layout setting and removing all layouts except
Dvorak from my configured layouts did not solve the problem. Even with US
(Qwerty) removed, my keyboard behaved like US Qwerty and advanced configuration
didn't work.

RESOLUTION / WORKAROUND

I was able to solve the problem by removing the dvorak layout and then
re-adding it to my configuration. This also fixed the advanced behavior. I
noted, when re-adding the keyboard, that there was no bare "dvorak" layout
anymore. I had to select "English (Dvorak)", with the flag of the United
States. I don't think this layout previously existed? Previously, the switcher
widget did not show a flag for Dvorak, instead showing the letters "dvk" or
"dvorak".

I think what probably happened here is that this bare "dvorak" layout was
removed in 5.27.6 in favor of localized Dvorak layouts with a flag, but this
broke existing configurations because the layout name defined in the system
configuration no longer exists.

If this is the case, IMO this should be fixed with a point release so that
users who have the existing configuration are seamlessly upgraded to the new
configuration for Dvorak layouts. Basically, fixing this issue as early as
possible would be ideal so that this bites as few users as possible. I haven't
used Qwerty in over a decade (it's only there for other people borrowing this
computer), so this bug effectively made my computer unusable for me until I
found the workaround.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.27.6
KDE Frameworks Version: 5.107.0
Qt Version: 5.15.10
Kernel Version: 6.3.9-arch1-1 (64-bit)
Graphics Platform: X11

ADDITIONAL INFORMATION

Apologies for putting this in kde/general. I wasn't able to determine which
system component is responsible for managing keyboard configurations. As far as
I know, the systemsettings KCM is just an interface, and Kwin probably handles
the keyboard mapping itself, but I wasn't able to guess further than that.

Hopefully someone can help me by triaging. Thanks!

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