Several days ago I found huge lags over all system on my Ubuntu 20.04.1 LTS. Today I think found the problem, but not the reason. So when I open Settings -> Sound menu, the CPU usage comes to about 100%. If I close Settings window or go to other tab, it becomes OK. Nothing special in my sound configuration - monitor and notebook with built in audio and Bluetooth headset. Same worked just fine on Ubuntu 18.04 LTS.
xorg:
Installed: 1:7.7+19ubuntu14
Candidate: 1:7.7+19ubuntu14
Version table:
*** 1:7.7+19ubuntu14 500
500 http://ru.archive.ubuntu.com/ubuntu focal/main amd64 Packages
100 /var/lib/dpkg/status
ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: xorg 1:7.7+19ubuntu14
ProcVersionSignature: Ubuntu 5.4.0-52.57-generic 5.4.65
Uname: Linux 5.4.0-52-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.driver.nvidia.capabilities.gpu0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/gpu0'
.proc.driver.nvidia.capabilities.mig: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/capabilities/mig'
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.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 x86_64 Kernel Module 450.80.02 Wed Sep 23 01:13:39 UTC 2020
GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)
ApportVersion: 2.20.11-0ubuntu27.10
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: skip
CompositorRunning: None
CurrentDesktop: ubuntu:GNOME
Date: Thu Oct 29 18:27:20 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus:
nvidia, 450.80.02, 5.4.0-52-generic, x86_64: installed
virtualbox, 6.1.10, 5.4.0-51-generic, x86_64: installed
virtualbox, 6.1.10, 5.4.0-52-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation UHD Graphics 630 (Mobile) [8086:3e9b] (prog-if 00 [VGA controller])
Subsystem: Dell UHD Graphics 630 (Mobile) [1028:0824]
Subsystem: Dell GP107M [GeForce GTX 1050 Ti Mobile] [1028:0824]
InstallationDate: Installed on 2020-09-12 (47 days ago)
InstallationMedia: Ubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
MachineType: Dell Inc. G5 5587
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic root=UUID=ef73abac-57c7-4134-90f3-1f52f41127a8 ro quiet splash vt.handoff=7
SourcePackage: xorg
Symptom: display
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/11/2019
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.9.0
dmi.board.name: 03PVDF
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvr1.9.0:bd02/11/2019:svnDellInc.:pnG55587:pvr:rvnDellInc.:rn03PVDF:rvrA00:cvnDellInc.:ct10:cvr:
dmi.product.family: GSeries
dmi.product.name: G5 5587
dmi.product.sku: 0824
dmi.sys.vendor: Dell Inc.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.101-2
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.8-0ubuntu1~20.04.1
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 2:1.20.8-2ubuntu2.4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20200226-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1
Oddly, confirmed. Only when in Sound settings...
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1841 dan 20 0 1125668 168248 120056 S 12.9 1.0 103:17.70 Xorg
1984 dan 20 0 5481060 435396 90896 S 8.3 2.7 89:49.05 gnome-shell
346704 dan 20 0 1611480 120968 90512 S 6.0 0.7 0:06.76 gnome-control-c