I'm experiencing the same issue on Ubuntu 21.04 (5.11.0-22-generic)
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DistroRelease: Ubuntu 21.04
InstallationDate: Installed on 2020-03-14 (487 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200309)
ProcVersionSignature: Ubuntu 5.11.0-22.23-generic 5.11.21
UpgradeStatus: Upgraded to hirsute on 2021-06-03 (40 days ago)
dmi.bios.date: 11/30/2020
dmi.bios.release: 1.41
dmi.bios.vendor: LENOVO
dmi.bios.version: BHCN41WW
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: LNVNB161216
dmi.board.vendor: LENOVO
dmi.board.version: SDK0R32862 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Legion Y540-15IRH-PG0
dmi.ec.firmware.release: 1.41
dmi.modalias:
dmi:bvnLENOVO:bvrBHCN41WW:bd11/30/2020:br1.41:efr1.41:svnLENOVO:pn81SY:pvrLegionY540-15IRH-PG0:rvnLENOVO:rnLNVNB161216:rvrSDK0R32862WIN:cvnLENOVO:ct10:cvrLegionY540-15IRH-PG0:
dmi.product.family: Legion Y540-15IRH-PG0
dmi.product.name: 81SY
dmi.product.sku: LENOVO_MT_81SY_BU_idea_FM_Legion Y540-15IRH-PG0
dmi.product.version: Legion Y540-15IRH-PG0
dmi.sys.vendor: LENOVO
lscpu
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Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 39 bits physical, 48 bits virtual
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 2
Core(s) per socket: 6
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 158
Model name: Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz
Stepping: 10
CPU MHz: 2600.000
CPU max MHz: 2600.0000
CPU min MHz: 800.0000
BogoMIPS: 5199.98
Virtualization: VT-x
L1d cache: 192 KiB
L1i cache: 192 KiB
L2 cache: 1.5 MiB
L3 cache: 12 MiB
NUMA node0 CPU(s): 0-11
Vulnerability Itlb multihit: KVM: Mitigation: VMX disabled
Vulnerability L1tf: Mitigation; PTE Inversion; VMX vulnerable
Vulnerability Mds: Vulnerable; SMT vulnerable
Vulnerability Meltdown: Vulnerable
Vulnerability Spec store bypass: Vulnerable
Vulnerability Spectre v1: Vulnerable: __user pointer sanitization and
usercopy barriers only; no swapgs barriers
Vulnerability Spectre v2: Vulnerable, IBPB: disabled, STIBP: disabled
Vulnerability Srbds: Vulnerable
Vulnerability Tsx async abort: Not affected
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep
mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe
syscall nx pdpe1g
b rdtscp lm constant_tsc art arch_perfmon pebs
bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64
monitor ds_c
pl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm
pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c
rdrand lahf_lm
abm 3dnowprefetch cpuid_fault epb
invpcid_single ssbd ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid
ept_ad fsgsbase tsc_adjust bm
i1 avx2 smep bmi2 erms invpcid mpx rdseed adx
smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts
hwp hwp_not
ify hwp_act_window hwp_epp md_clear flush_l1d
--
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https://bugs.launchpad.net/bugs/1738534
Title:
Processor turbo dsiabled/throttled after suspend
Status in linux package in Ubuntu:
Confirmed
Bug description:
After suspending/resuming my laptop on battery power, I noticed choppy
video playback. I've narrowed it down to the CPU being locked to
lower frequencies after suspend/resume (only on battery). Plugging
the laptop back in does not restore the normal performance, nor does
suspend/resume after plugging it back in. The performance doesn't
drop until after the suspend/resume, I'm not sure if it is _supposed_
to throttle when on battery, but either way the behaviour is wrong.
Doing a full shutdown and restart restores the performance to normal.
Prior to a suspend/resume cycle, cpupower reports:
$ sudo cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 800 MHz - 3.00 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 800 MHz and 3.00 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 1.26 GHz (asserted by call to kernel)
boost state support:
Supported: yes
Active: yes
2800 MHz max turbo 4 active cores
2800 MHz max turbo 3 active cores
2800 MHz max turbo 2 active cores
3000 MHz max turbo 1 active cores
Afterwards, the frequency is clamped (cpufreq-set -r --max=3.0GHz has
no effect) and turbo is disabled:
$ sudo cpupower frequency-info
analyzing CPU 0:
driver: intel_pstate
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: Cannot determine or is not supported.
hardware limits: 800 MHz - 3.00 GHz
available cpufreq governors: performance powersave
current policy: frequency should be within 800 MHz and 1.80 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency: Unable to call hardware
current CPU frequency: 950 MHz (asserted by call to kernel)
boost state support:
Supported: no
Active: no
2800 MHz max turbo 4 active cores
2800 MHz max turbo 3 active cores
2800 MHz max turbo 2 active cores
3000 MHz max turbo 1 active cores
Trying to re-enable turbo mode by setting the no_turbo intel_pstate
/sys/ entry back to 0 is rejected:
$ echo 0 | sudo tee /sys/devices/system/cpu/intel_pstate/no_turbo
0
tee: /sys/devices/system/cpu/intel_pstate/no_turbo: Operation not permitted
However, these two commands *do* work around the problem, forcing
turbo mode back on and then restoring the normal frequency range:
sudo x86_energy_perf_policy --turbo-enable 1
sudo cpufreq-set -r --min=0.8GHz --max=3.0GHz
I also see this error in dmesg after some resumes (but the above
problem sometimes happens without this error message):
Dec 16 11:36:25 shauns-laptop kernel: intel_pstate: Turbo disabled by
BIOS or unavailable on processor
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: linux-image-4.13.0-19-generic 4.13.0-19.22
ProcVersionSignature: Ubuntu 4.13.0-19.22-generic 4.13.13
Uname: Linux 4.13.0-19-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: shaun 1194 F.... pulseaudio
CurrentDesktop: ubuntu:GNOME
Date: Sat Dec 16 11:18:12 2017
InstallationDate: Installed on 2017-12-14 (1 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
Lsusb:
Bus 001 Device 004: ID 2232:1024 Silicon Motion
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: SAMSUNG ELECTRONICS CO., LTD. 900X3C/900X3D/900X4C/900X4D
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.13.0-19-generic
root=UUID=7352de8c-0017-44e1-81fb-0145ad9c1185 ro rootflags=subvol=@ quiet
splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.13.0-19-generic N/A
linux-backports-modules-4.13.0-19-generic N/A
linux-firmware 1.169.1
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/12/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: P03AAC
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: SAMSUNG_NP1234567890
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvrP03AAC:bd07/12/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn900X3C/900X3D/900X4C/900X4D:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rnSAMSUNG_NP1234567890:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.family: ChiefRiver System
dmi.product.name: 900X3C/900X3D/900X4C/900X4D
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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