I had the same problem while testing the Live Session in Ubuntu Desktop (Legacy) amd64 in Focal 20.04.6 using a Lenovo ThinkPad X201 (64Bit Intel Core i7-M 620 @2.67GHzx4; 4GB RAM; Intel HD Graphics; 1xSSD-160GB)
Error Message: gnome-font-view: The program 'gnome-font-viewer' received an X Window System error. This probably reflects a bug in the program. The error was 'BadDrawable (invalid Pixmap or Window parameter)'. (Details: serial 1658 error_code 9 request_code 139 (RENDER) minor_code 4) (Note to programmers: normally, X errors are reported asynchronously; that is, you will receive the error a while after causing it. To debug your program, run it with the GDK_SYNCHRONIZE environment variable to change this behavior. You can then get a meaningful -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-font-viewer in Ubuntu. https://bugs.launchpad.net/bugs/1845362 Title: gnome-font-viewer crashed with signal 5 in _XEventsQueued() Status in gnome-font-viewer package in Ubuntu: Fix Released Status in gnome-font-viewer package in Debian: New Bug description: Reproducible crash (tested on Ubuntu and Xubuntu) or freezing of application during ISO testing of a live-session. Application will crash if there is an attempt to close it or scroll through fonts. On one occasion my laptop was rendered unusable when Firefox was launched while trying to report the crash to Launchpad. After the bug report has been sent gnome-font-viewer will freeze when automatically restarted. No fonts are displayed. Work around ----------- gnome-font-viewer appears to start correctly when started from the command line of my Ubuntu 20.04 installation. Then subsequent attempts to start the program succeed when started from the dock or the Application Overview. I have found that this work around wasn't necessary when using Xubuntu 20.04. ProblemType: Crash DistroRelease: Ubuntu 19.10 Package: gnome-font-viewer 3.34.0-1 ProcVersionSignature: Ubuntu 5.3.0-10.11-generic 5.3.0-rc8 Uname: Linux 5.3.0-10-generic x86_64 ApportVersion: 2.20.11-0ubuntu7 Architecture: amd64 CasperVersion: 1.416 CurrentDesktop: XFCE Date: Wed Sep 25 17:34:17 2019 ExecutablePath: /usr/bin/gnome-font-viewer LiveMediaBuild: Xubuntu 19.10 "Eoan Ermine" - Beta amd64 (20190925) ProcCmdline: gnome-font-viewer ProcEnviron: LANGUAGE=en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=C.UTF-8 SHELL=/bin/bash Signal: 5 SourcePackage: gnome-font-viewer StacktraceTop: ?? () from /lib/x86_64-linux-gnu/libX11.so.6 ?? () from /lib/x86_64-linux-gnu/libX11.so.6 _XEventsQueued () from /lib/x86_64-linux-gnu/libX11.so.6 XPending () from /lib/x86_64-linux-gnu/libX11.so.6 ?? () from /lib/x86_64-linux-gnu/libgdk-3.so.0 Title: gnome-font-viewer crashed with signal 5 in _XEventsQueued() UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo separator: To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-font-viewer/+bug/1845362/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
