Public bug reported:
When I use the terminal, my Ubuntu desktop GUI freezes.
Here are the log entries from just before it froze:
Apr 07 22:30:01 luis-ubuntu CRON[23698]: pam_unix(cron:session): session opened
for user root(uid=0) by root(uid=0)
Apr 07 22:30:01 luis-ubuntu CRON[23700]: (root) CMD (if [ -x
/etc/init.d/anacron ] && ! [ -d /run/systemd/system ]; then exec
/usr/sbin/invoke-rc.d anacron start >/dev/null; fi)
Apr 07 22:30:01 luis-ubuntu CRON[23698]: pam_unix(cron:session): session closed
for user root
Apr 07 22:30:06 luis-ubuntu systemd[1]: Starting sysstat-collect.service -
system activity accounting tool...
Apr 07 22:30:06 luis-ubuntu systemd[1]: sysstat-collect.service: Deactivated
successfully.
Apr 07 22:30:06 luis-ubuntu systemd[1]: Finished sysstat-collect.service -
system activity accounting tool.
Apr 07 22:30:08 luis-ubuntu ptyxis[12087]: vkAcquireNextImageKHR(): A swapchain
no longer matches the surface properties exactly, but can still be used to
present to the surface successfully. (VK_SUBOPTIMAL_KHR) (1000001003)
Apr 07 22:30:08 luis-ubuntu ptyxis[12087]: vkAcquireNextImageKHR(): A surface
has changed in such a way that it is no longer compatible with the swapchain.
(VK_ERROR_OUT_OF_DATE_KHR) (-1000001004)
Apr 07 22:30:08 luis-ubuntu ptyxis[12087]: vkAcquireNextImageKHR(): A swapchain
no longer matches the surface properties exactly, but can still be used to
present to the surface successfully. (VK_SUBOPTIMAL_KHR) (1000001003)
I'm using an NVIDIA graphics card and the 595 driver.
lsb_release -rd
Description: Ubuntu Resolute Raccoon (development branch)
Release: 26.04
apt-cache policy ptyxis
ptyxis:
Installiert: 50.1-1ubuntu1
Installationskandidat: 50.1-1ubuntu1
Versionstabelle:
*** 50.1-1ubuntu1 500
500 http://archive.ubuntu.com/ubuntu resolute/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: ptyxis 50.1-1ubuntu1
ProcVersionSignature: Ubuntu 7.0.0-12.12-generic 7.0.0-rc6
Uname: Linux 7.0.0-12-generic x86_64
NonfreeKernelModules: zfs
ApportVersion: 2.33.1-0ubuntu7
Architecture: amd64
CasperMD5CheckMismatches: ./boot/grub/i386-pc/eltorito.img
CasperMD5CheckResult: fail
CurrentDesktop: ubuntu:GNOME
Date: Tue Apr 7 23:06:37 2026
InstallationDate: Installed on 2026-03-28 (10 days ago)
InstallationMedia: Ubuntu 26.04 "Resolute Raccoon" - Daily amd64 (20260325)
ProcEnviron:
LANG=de_DE.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
SourcePackage: ptyxis
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ptyxis (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug resolute wayland-session
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https://bugs.launchpad.net/bugs/2147480
Title:
Ubuntu Desktop GUI freezes
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