I ran the following test with a script that logged memory usage in MB every
minute:
Automatic screen blank/lock was disabled, WhiteSur was enabled for GDM and
firefox, seconds visualization was enabled in the clock, text shadow was
enabled as described by Alessandro, and my cursor was hovered over the clock
for the duration of the test (which may or may not be necessary, but it made
the shadow more visible for me).
I observed the following over two 4 hour tests:
With 48.0-1ubuntu1.2 (unpatched): Starting memory utilization at
2025-10-12 11:47:24 was 1297 MB, ending at 2025-10-12 15:29:26 was 1416
MB, with a roughly linear increase.
With 48.0-1ubuntu1.3 (patched): Starting memory utilization at
2025-10-12 16:45:45 was 1299 MB, ending at 2025-10-12 21:18:47 was 1293
MB, utilization remained roughly flat throughout the test.
Patched environment:
ubuntu@ubuntu:~$ apt-cache policy gnome-shell
gnome-shell:
Installed: 48.0-1ubuntu1.3
Candidate: 48.0-1ubuntu1.3
Version table:
*** 48.0-1ubuntu1.3 100
100 http://us.archive.ubuntu.com/ubuntu plucky-proposed/main amd64
Packages
100 /var/lib/dpkg/status
48.0-1ubuntu1.2 500
500 http://us.archive.ubuntu.com/ubuntu plucky-updates/main amd64
Packages
48.0-1ubuntu1 500
500 http://us.archive.ubuntu.com/ubuntu plucky/main amd64 Packages
Originally I was going to have this run for longer, but since the trend
is clearly visible already with the clock set to update every second,
I'm happy to call this verified if you are.
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https://bugs.launchpad.net/bugs/2121786
Title:
Using a custom theme leaks 10-15 MB per hour
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