Public bug reported:
After updating to 6.14.0-33-generic, I've experienced various graphical
glitches on my Lenovo Legion 7 15IMHg05 when it's under load.
I mostly use my laptop for light gaming + dev work and have an external
monitor.
The laptop is in good condition, recently cleaned and repasted.
Here are some examples:
1. If I switch to Performance Mode in the NVIDIA PRIME profiles, most of the
bugs disappear, but certain games (e.g: Slay the Spire) just stop rendering
altogether - I just have the window outline with nothing inside of it. Under
load, the laptop gets pretty laggy.
2. If I switch to NVIDIA on-demand, I get random screen freezes when
browsing with a stream going on in the background. If I start a more
demanding game on Steam and I alt tab, the game just crashes + the
screen freezes for a few seconds.
The logs collected by the `ubuntu-bug linux` command are taken after one
such crash.
I also seem to get some minor screen freezes, as the mouse just jumps
around from time to time.
When I switch back to 6.14.0-32-generic, none of these issues happen
under the same conditions.
For added context, the kernel wasn't installed properly initially and I
had to install and add the kernel headers (?) manually. Not sure if I
did that correctly.
I can provide more info if needed.
Thanks!
MC
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.14.0-33-generic 6.14.0-33.33~24.04.1
ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-33-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: mihaiac 2989 F.... wireplumber
/dev/snd/controlC0: mihaiac 2989 F.... wireplumber
/dev/snd/seq: mihaiac 2984 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 9 21:12:09 2025
InstallationDate: Installed on 2025-05-19 (143 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64
(20240827.1)
MachineType: LENOVO 81YU
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
0 i915drmfb
1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-33-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.14.0-33-generic N/A
linux-backports-modules-6.14.0-33-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.17
SourcePackage: linux-hwe-6.14
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/25/2021
dmi.bios.release: 4.63
dmi.bios.vendor: LENOVO
dmi.bios.version: E9CN63WW(V4.08)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: No DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Legion 7 15IMHg05
dmi.ec.firmware.release: 4.63
dmi.modalias:
dmi:bvnLENOVO:bvrE9CN63WW(V4.08):bd05/25/2021:br4.63:efr4.63:svnLENOVO:pn81YU:pvrLenovoLegion715IMHg05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrLenovoLegion715IMHg05:skuLENOVO_MT_81YU_BU_idea_FM_Legion715IMHg05:
dmi.product.family: Legion 7 15IMHg05
dmi.product.name: 81YU
dmi.product.sku: LENOVO_MT_81YU_BU_idea_FM_Legion 7 15IMHg05
dmi.product.version: Lenovo Legion 7 15IMHg05
dmi.sys.vendor: LENOVO
** Affects: linux-hwe-6.14 (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-hwe-6.14 in Ubuntu.
https://bugs.launchpad.net/bugs/2127215
Title:
Graphics bugs after upgrading to kernel 6.14.0-33-generic
Status in linux-hwe-6.14 package in Ubuntu:
New
Bug description:
After updating to 6.14.0-33-generic, I've experienced various
graphical glitches on my Lenovo Legion 7 15IMHg05 when it's under
load.
I mostly use my laptop for light gaming + dev work and have an external
monitor.
The laptop is in good condition, recently cleaned and repasted.
Here are some examples:
1. If I switch to Performance Mode in the NVIDIA PRIME profiles, most of the
bugs disappear, but certain games (e.g: Slay the Spire) just stop rendering
altogether - I just have the window outline with nothing inside of it. Under
load, the laptop gets pretty laggy.
2. If I switch to NVIDIA on-demand, I get random screen freezes when
browsing with a stream going on in the background. If I start a more
demanding game on Steam and I alt tab, the game just crashes + the
screen freezes for a few seconds.
The logs collected by the `ubuntu-bug linux` command are taken after
one such crash.
I also seem to get some minor screen freezes, as the mouse just jumps
around from time to time.
When I switch back to 6.14.0-32-generic, none of these issues happen
under the same conditions.
For added context, the kernel wasn't installed properly initially and
I had to install and add the kernel headers (?) manually. Not sure if
I did that correctly.
I can provide more info if needed.
Thanks!
MC
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.14.0-33-generic 6.14.0-33.33~24.04.1
ProcVersionSignature: Ubuntu 6.14.0-33.33~24.04.1-generic 6.14.11
Uname: Linux 6.14.0-33-generic x86_64
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: mihaiac 2989 F.... wireplumber
/dev/snd/controlC0: mihaiac 2989 F.... wireplumber
/dev/snd/seq: mihaiac 2984 F.... pipewire
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 9 21:12:09 2025
InstallationDate: Installed on 2025-05-19 (143 days ago)
InstallationMedia: Ubuntu 24.04.1 LTS "Noble Numbat" - Release amd64
(20240827.1)
MachineType: LENOVO 81YU
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB:
0 i915drmfb
1 nvidia-drmdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-33-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-6.14.0-33-generic N/A
linux-backports-modules-6.14.0-33-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.17
SourcePackage: linux-hwe-6.14
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 05/25/2021
dmi.bios.release: 4.63
dmi.bios.vendor: LENOVO
dmi.bios.version: E9CN63WW(V4.08)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: No DPK
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo Legion 7 15IMHg05
dmi.ec.firmware.release: 4.63
dmi.modalias:
dmi:bvnLENOVO:bvrE9CN63WW(V4.08):bd05/25/2021:br4.63:efr4.63:svnLENOVO:pn81YU:pvrLenovoLegion715IMHg05:rvnLENOVO:rnLNVNB161216:rvrNoDPK:cvnLENOVO:ct10:cvrLenovoLegion715IMHg05:skuLENOVO_MT_81YU_BU_idea_FM_Legion715IMHg05:
dmi.product.family: Legion 7 15IMHg05
dmi.product.name: 81YU
dmi.product.sku: LENOVO_MT_81YU_BU_idea_FM_Legion 7 15IMHg05
dmi.product.version: Lenovo Legion 7 15IMHg05
dmi.sys.vendor: LENOVO
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