Fedora 34 Change: IBus 1.5.24 (System-Wide Change proposal)

[Ben Cotton]

https://fedoraproject.org/wiki/Changes/IBus_1.5.24

== Summary ==
IBus will use the mmap(2) feature to show emoji and Unicode tables in
order to reduce the physical memory usage.

== Owner ==
* Name: [[User:Fujiwara|Takao Fujiwara]]
* Email: fujiwara [at] redhat [dot] com


== Detailed Description ==
Currently IBus disables the emoji and Unicode features in some system
users likes gdm, liveuser, gnome-initial-setup not to exhaust the
limited memory usage with LiveDVD. The emoji data requires about 10MB
and the Unicode data requires about 15MB and the total 25MB is
required roughly to show the tables. The Fedora testers ask to test
the emoji feature and Unicode feature in LiveDVD and the next IBus
will use mmap to be available the emoji and Unicode data with
liveuser.


== Feedback ==
Fedora I18N testers asks to test the emoji and Unicode data without
installing Fedora to disc.


== Scope ==
* Proposal owners:
* Other developers: N/A
* Release engineering: (a check of an impact with Release Engineering is needed)
* Policies and guidelines: N/A
* Trademark approval: N/A
* Alignment with Objectives:


== Upgrade/compatibility impact ==
About 25MB free disc space will be needed.

== How To Test ==
# Run Fedora LiveDVD and log into the Fedora desktop
# Run `gnome-control-center region` and add both XKB and input method
sources. E.g. "English (US)" and "Hangul"
# Enable an XKB source with mouse or Super-space shortcut key. E.g.
"English (US)"
# Type Ctrl-Shift-e, "smile", space, and Enter key.

U+1F603 is output.


== User Experience ==
The physical memory usage will be reduced.


== Dependencies ==
N/A

== Contingency Plan ==
* Contingency mechanism: Revert the change to IBus.
* Contingency deadline: Beta release
* Blocks release? No
* Blocks product? None

== Documentation ==
TBD

-- 
Ben Cotton
He / Him / His
Senior Program Manager, Fedora & CentOS Stream
Red Hat
TZ=America/Indiana/Indianapolis