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UPDATE: It seems to be related with `amdgpu` driver, which is the
default driver in Ubuntu. After disabling `amdgpu`, problem vanishes.
However, software rendering is not a perfect solution.
IT SEEMS THAT `amdgpu` in later updates of Ubuntu 23.10 & 24.04 are
BUGGY. As no driver alternatives are available right now for Ubuntu
24.04, now I am having a hard time.
[UPDATE] Updating to Ubuntu 24.04 DO NOT SOLVE THIS PROBLEM
Before updating to Ubuntu 24.04, I do sudo apt upgrade to update my packages on
Ubuntu 23.10 first.
[UPDATE] Updating to Ubuntu 24.04 DO NOT SOLVE THIS PROBLEM
Then I found that every program in GTK4/Libadwaita renders with missing
characters, even gdm (I cannot take a screenshot of gdm, but the
problems are the same).
I toggled "Antialising" in GNOME tweaks, and some characters return
TEMPORARILY. Then I opened a new GTK4/Libadwaita program, problems re-
occur.
Besides, problems exist in Xorg/Wayland, as Ubuntu 23.10 uses Xwayland.
Problems exist in Plasma. Texts in desktop icons are missing, too.
AND I FOUND THAT the "Graphics" Section (the driver name) has been
changed to "AMD Readon 680M" after the update (I think it is something
like "AMD Rembrandt" before sudo apt upgrade). (I toggled in GNOME
tweaks to make the window display graphics info; if I re-open it, fonts
will be missing again)
If I hover on the place where text should display, some texts may
display but icons would not.
This problem affects my life qualify, thus I need to make clear where it
is the problem. GTK4? Libadwaita? Graphics? Ubuntu? Because problems
does not occur on GTK3 based apps, thus I can submit this issue in
Firefox.
I tried to open GNOME Calendar and use journalctl to capture logs
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 gnome-calendar[4462]:
gcal_range_union: assertion 'a != NULL' failed
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 gnome-calendar[4462]:
gcal_range_contains_datetime: assertion 'self' failed
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 gnome-calendar[4462]: Unable to bind
the same property on the same instance
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 dbus-daemon[898]: [system] Activating
via systemd: service name='org.freedesktop.GeoClue2' unit='geoclue.service'
requested by ':1.103' (uid=1000 pid=4462 comm="/usr/bin/gnome-calendar
--gapplication-service" label="unconfined")
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 systemd[1]: Starting geoclue.service -
Location Lookup Service...
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 dbus-daemon[898]: [system]
Successfully activated service 'org.freedesktop.GeoClue2'
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 systemd[1]: Started geoclue.service -
Location Lookup Service.
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 gnome-shell[3604]: Can't update stage
views actor <unnamed>[<MetaWindowActorX11>:0x5e35cde82a20] is on because it
needs an allocation.
Apr 26 09:02:00 amber-XiaoXinPro-14-ARP8 gnome-shell[3604]: Can't update stage
views actor <unnamed>[<MetaSurfaceActorX11>:0x5e35cb8dff80] is on because it
needs an allocation.
Apr 26 09:02:03 amber-XiaoXinPro-14-ARP8 gnome-calendar[4462]: Finalizing
GcalMonthView 0x612b02571230, but it still has children left:
- GcalMonthPopover 0x612b02a78630
If I opened gnome-calendar in terminal, terminal has no new errors
messages appending.
Disabling amdgpu makes the problem to vanish, however software rendering
is not an acceptable option for a Ubuntu Desktop user.
Thanks in advance.
** Affects: gtk4 (Ubuntu)
Importance: Undecided
Status: New
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amdgpu causes GTK4/Libadwaita, etc. rendering text with missing characters
https://bugs.launchpad.net/bugs/2063520
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