Public bug reported:
I have a Lenovo Legion 7 with an AMD Radeon 610M integrated graphics
card and an Nvidia GeForce RTX 4090 laptop dedicated graphics card.
After Xorg was deprecated in Ubuntu 25.10, I experienced major slowdown
and stability issues. I usually watch two or three streams at a time
and despite that not being a particularly taxing workload, the streams
will stammer, slow to a crawl, and sometimes crash Firefox. I have
mitigated this issue somewhat by lowering my display's refresh rate from
240 Hz to 60 Hz, although response is still sluggish at times.
ProblemType: Bug
DistroRelease: Ubuntu 25.10
Package: xorg 1:7.7+24ubuntu1
ProcVersionSignature: Ubuntu 6.17.0-8.8-generic 6.17.2
Uname: Linux 6.17.0-8-generic x86_64
.proc.driver.nvidia.capabilities.fabric-imex-mgmt:
DeviceFileMinor: 4323
DeviceFileMode: 256
DeviceFileModify: 1
.proc.driver.nvidia.capabilities.gpu0: Error: path was not a regular file.
.proc.driver.nvidia.capabilities.mig: Error: path was not a regular file.
.proc.driver.nvidia.gpus.0000.01.00.0: Error: path was not a regular file.
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
NVRM version: NVIDIA UNIX Open Kernel Module for x86_64 580.95.05 Release
Build (dvs-builder@U22-I3-B17-02-5) Tue Sep 23 09:55:41 UTC 2025
GCC version: gcc version 15.2.0 (Ubuntu 15.2.0-4ubuntu4)
ApportVersion: 2.33.1-0ubuntu3
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Tue Dec 30 16:55:17 2025
DistroCodename: questing
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, if not too technical
GraphicsCard:
NVIDIA Corporation AD103M / GN21-X11 [GeForce RTX 4090 Laptop GPU] [10de:2757]
(rev a1) (prog-if 00 [VGA controller])
Subsystem: Lenovo Device [17aa:3c74]
Advanced Micro Devices, Inc. [AMD/ATI] Raphael [1002:164e] (rev d8) (prog-if
00 [VGA controller])
Subsystem: Lenovo Device [17aa:3c74]
InstallationDate: Installed on 2024-07-11 (538 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
MachineType: LENOVO 82WS
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.17.0-8-generic
root=UUID=91fc5100-e322-4273-9ec1-1097543f00b2 ro quiet splash
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to questing on 2025-11-03 (58 days ago)
dmi.bios.date: 01/10/2024
dmi.bios.release: 1.49
dmi.bios.vendor: LENOVO
dmi.bios.version: LPCN49WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0T76461 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion Pro 7 16ARX8H
dmi.ec.firmware.release: 1.49
dmi.modalias:
dmi:bvnLENOVO:bvrLPCN49WW:bd01/10/2024:br1.49:efr1.49:svnLENOVO:pn82WS:pvrLegionPro716ARX8H:rvnLENOVO:rnLNVNB161216:rvrSDK0T76461WIN:cvnLENOVO:ct10:cvrLegionPro716ARX8H:skuLENOVO_MT_82WS_BU_idea_FM_LegionPro716ARX8H:
dmi.product.family: Legion Pro 7 16ARX8H
dmi.product.name: 82WS
dmi.product.sku: LENOVO_MT_82WS_BU_idea_FM_Legion Pro 7 16ARX8H
dmi.product.version: Legion Pro 7 16ARX8H
dmi.sys.vendor: LENOVO
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.125-1ubuntu0.1
version.libgl1-mesa-dri: libgl1-mesa-dri 25.2.3-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.18-1ubuntu1.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:22.0.0-1build1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20210115-1build1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.18-1
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug performance possible-manual-nvidia-install questing
ubuntu wayland-session
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https://bugs.launchpad.net/bugs/2137297
Title:
Slowdown and stability issues on hybrid graphics system
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