Public bug reported:
After upgrading to kernel 7.0.0-38-generic, multiple desktop applications fail
to start or require several repeated attempts before launching. The issue is
not present on kernel 7.0.0-34-generic, where everything works perfectly and
responsively.
Affected applications (observed):
Telegram Desktop – does not launch at all (process either hangs or exits
silently).
Terminal emulator – takes 3–4 consecutive attempts to open a new window.
Text editor (gedit / mousepad) – same behaviour: multiple failed attempts
before the window finally appears.
Many other GUI applications exhibit similar symptoms (long unresponsive delay
on click, or simply never open).
Steps to reproduce:
Boot into kernel 7.0.0-38-generic.
Log into a desktop session (GNOME/KDE/X11/Wayland – specify yours).
Attempt to launch Telegram Desktop, a terminal emulator, or a text editor.
Observe that the application either does not start or requires 3–4 repeated
clicks/attempts.
Reboot into kernel 7.0.0-34-generic.
Repeat step 3. All applications launch instantly and normally.
Expected behavior:
All applications launch promptly on the first attempt, as they do on kernel
7.0.0-34-generic.
Actual behavior:
Applications fail to launch or hang indefinitely. Terminal and text editor
require 3–4 attempts before a window finally appears. The desktop feels
unresponsive and sluggish.
Workaround:
Boot into kernel 7.0.0-34-generic. The issue is completely absent.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-7.0.0-34-generic 7.0.0-34.34~24.04.1
ProcVersionSignature: Ubuntu 7.0.0-34.34~24.04.1-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.28.3-0ubuntu0.1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: afanasev 3632 F.... pipewire
afanasev 3636 F.... wireplumber
/dev/snd/seq: afanasev 3632 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Wed Oct 7 08:35:38 2026
DistributionChannelDescriptor:
# This is the distribution channel descriptor for the OEM CDs
# For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
canonical-oem-somerville-focal-amd64-20200502-85
InstallationDate: Installed on 2022-03-17 (1664 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
MachineType: Dell Inc. Latitude 3520
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-7.0.0-34-generic
root=UUID=171895d7-baa8-4e7e-8201-985003417b5a ro quiet splash vt.handoff=7
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-7.0.0-34-generic N/A
linux-backports-modules-7.0.0-34-generic N/A
linux-firmware 20240318.git3b128b60.0ubuntu3.1
SourcePackage: linux-hwe-7.0
UpgradeStatus: Upgraded to noble on 2026-09-09 (28 days ago)
WifiSyslog:
dmi.bios.date: 03/31/2026
dmi.bios.release: 1.47
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.47.0
dmi.board.name: 0KJMV3
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.47.0:bd03/31/2026:br1.47:svnDellInc.:pnLatitude3520:pvr:rvnDellInc.:rn0KJMV3:rvrA00:cvnDellInc.:ct10:cvr:sku0B21:pfaLatitude:
dmi.product.family: Latitude
dmi.product.name: Latitude 3520
dmi.product.sku: 0B21
dmi.sys.vendor: Dell Inc.
** Affects: linux-hwe-7.0 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
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https://bugs.launchpad.net/bugs/2169796
Title:
Kernel 7.0.0-38-generic: Applications fail to launch or experience
severe startup delay; 7.0.0-34-generic works flawlessly
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