Incomplete turbo boost on all cores in Ubuntu 22.04 and 22.10

[Andrew]

I have an HP laptop with Core i5-8300h and it almost doesn't use all-core turbo after couple minutes after boot. When I run a single threaded task, it maintains frequencies of 3.5-4 GHz, but as I run anything on all cores the clock drops to rates near the base frequency of 2.3 GHz (runs at 1.7-2.5Ghz). The first couple minutes after boot all cores run on full multi-core boost frequency of 3.9 GHz if loaded. It can't be a thermal issue as the temperature drops to about 55°C and the fans go almost silent (much more quiet than under single-core load).

The issue was present on 18.04 and original 20.04, disappeared with some update in 20.04 branch (the laptop would maintain 3.9 GHz turbo on all cores) and now returned in 22.04 and 22.10 (I've tried various DE flavors). Under the Windows the full multi-core turbo sustains for indefinite time during non SIMD workloads.

Switching governors makes no difference. I've tried disabling intel_pstate, turning thermald on or off, throttled and auto-cpufreq custom daemons and nothing helped.

ProblemType: Bug
DistroRelease: Ubuntu 22.10
Package: linux-image-generic 5.19.0.31.28
ProcVersionSignature: Ubuntu 5.19.0-31.32-generic 5.19.17
Uname: Linux 5.19.0-31-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.23.1-0ubuntu3
Architecture: amd64
CRDA: N/A
CasperMD5CheckResult: pass
CurrentDesktop: Budgie:GNOME
Date: Sun Feb 26 19:42:19 2023
InstallationDate: Installed on 2023-02-25 (0 days ago)
InstallationMedia: Ubuntu-Budgie 22.10 "Kinetic Kudu" - Release amd64 (20221018.1)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 004: ID 0bda:b00b Realtek Semiconductor Corp. Realtek Bluetooth 4.2 Adapter
 Bus 001 Device 003: ID 04f2:b56d Chicony Electronics Co., Ltd HP Wide Vision HD
 Bus 001 Device 002: ID 1d57:fa21 Xenta 2.4G Receiver
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: HP HP Pavilion Notebook
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-31-generic root=UUID=72585e83-b773-4fed-b0fc-bc0b92c5c7e3 ro quiet splash noresume vt.handoff=7
RelatedPackageVersions:
 linux-restricted-modules-5.19.0-31-generic N/A
 linux-backports-modules-5.19.0-31-generic N/A
 linux-firmware 20220923.gitf09bebf3-0ubuntu1.4
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/20/2018
dmi.bios.release: 15.18
dmi.bios.vendor: AMI
dmi.bios.version: F.18
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 84F8
dmi.board.vendor: HP
dmi.board.version: 08.10
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.chassis.version: Chassis Version
dmi.ec.firmware.release: 8.10
dmi.modalias: dmi:bvnAMI:bvrF.18:bd06/20/2018:br15.18:efr8.10:svnHP:pnHPPavilionNotebook:pvr:rvnHP:rn84F8:rvr08.10:cvnHP:ct10:cvrChassisVersion:sku4HC20EA#ACB:
dmi.product.family: 103C_5335KV HP Pavilion
dmi.product.name: HP Pavilion Notebook
dmi.product.sku: 4HC20EA#ACB
dmi.sys.vendor: HP

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.