Date and time jump around on locked screen when showing seconds (and also sometimes display strange shadows behind them)

[Wise Melon]

I am running Ubuntu GNOME 15.10 with GNOME 3.18, and I have noticed that when I enable seconds to be displayed in the time in the gnome-tweak-tool that the date and time seem to jump around a lot on the locked screen. As I couldn't take a screencast of this, I downloaded Ubuntu GNOME 15.10 with GNOME 3.18 and put it into a VM, but when running it in the VM in addition to the jumping around there were also strange shadows being made most of the time behind the text which is not something that happens on the host so it's all very strange... I have attached a screencast of this.

Though I also tested this in a Ubuntu GNOME 16.04 with GNOME 3.18 and there are no strange shadows nor jumping there, so it doesn't seem to be an issue with the GNOME version, but rather something more linked to the Ubuntu GNOME version. I also tested it in Ubuntu GNOME 16.04 with GNOME 3.19, and it was fine there as well.

[Wise Melon (wise-melon-deactivatedaccount)]

Though this may turn out to have more to do with Ubuntu GNOME than GNOME, I thought I would file a report on this upstream anyway: https://bugzilla.gnome.org/show_bug.cgi?id=763231

[Wise Melon (wise-melon-deactivatedaccount)]

I have found this now also to be present in an Ubuntu GNOME 16.04 with GNOME 3.20 64-bit VM.

[Daniel van Vugt (vanvugt)]

Looks like the text rendering occasionally gets an incorrect stride value.

I wonder if this was at least partially fixed in:
https://gitlab.gnome.org/GNOME/gnome-shell/issues/34

[Daniel van Vugt (vanvugt)]

^^^
which is fixed in gnome-shell 3.29.3

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Fixed in Ubuntu 18.10 and later, it seems.

If you would like a fix for earlier Ubuntu versions then please click "Nominate for series".

[SunBear (sunbear-c22)]

I would like to nominate the fix be made available to Ubuntu 18.04. It seems strange the fix isn't made available to a LTS version which is more highly used than a .10 version.

I tried pressing the nomination button, but it complained that: "You do not have permission to nominate this bug."

I had filed a similar bug report here https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1840265.

[Daniel van Vugt (vanvugt)]

I was just trying to be strictly accurate with the version numbers. Actually Ubuntu 19.04 is the only version with the fix that's currently supported.

[SunBear (sunbear-c22)]

Any chance that this bug will be fixed for Ubuntu 18.04? It still has about 1.5 years of support life to it?

[Daniel van Vugt (vanvugt)]

Ubuntu 18.04 has 4 years of free support remaining, and 9 years of paid support remaining.

https://wiki.ubuntu.com/Releases

[SunBear (sunbear-c22)]

:) All the more reason for Ubuntu 18.04 to receive the fix? Any timeline planned?

My bad for mixing 16.04 end of life with 18.04.

[Daniel van Vugt (vanvugt)]

By adding the tag rls-bb-incoming in comment #9 I am requesting that it be considered for inclusion in 18.04. I think.