Hi and thanks for the response. I ran the commands you mentioned and got
the following:
[jonathan@dom0 ~]$ lsmod | grep xen_acpi_processor
xen_acpi_processor 20480 0
[jonathan@dom0 ~]$ xenpm get-cpufreq-para
cpu id : 0
affected_cpus : 0
cpuinfo frequency : max [2701000] min [400000] cur [2700000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2701000 2700000 2500000 2200000 1900000 1600000
1300000 1000000 700000 *400000
scaling frequency : max [2700000] min [400000] cur [400000]
turbo mode : enabled
[CPU1] failed to get cpufreq parameter
Appreciate any help in interpreting the above!
Best
Jonathan
On Thursday, April 1, 2021 at 8:48:29 PM UTC+1 Josef Johansson wrote:
> Hi,
>
> Just curious, is xen-acpi-processor module loaded in dom0 (lsmod /
> modprobe xen-acpi-processor) and what does xenpm get-cpufreq-para tell you?
>
> On Monday, 29 March 2021 at 16:07:53 UTC+2 [email protected] wrote:
>
>> Hi there
>>
>> I've been using Qubes for about 18 months now, and it's great. My only
>> complaint is the poor battery life I get. I've followed various
>> recommendations within qubes-users about using powertop and tlp, but
>> nothing seems to address the rapid decline in power I experience when
>> running on battery.
>>
>> Some system information:
>>
>> Kernel Version Linux version 5.4.88-1.qubes.x86_64
>> System Name PurismLibrem 15 v44.0 (Pureboot)
>> CPU Information 2 Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz
>> OS Information Qubes release 4.0 (R4.0)
>>
>> Probably the biggest clue I have received was from running tlp stat,
>> which suggests:
>>
>> "Reconfigure your Linux kernel with PM_RUNTIME=y to reduce your laptop's
>> power consumption."
>>
>> This seems to be reinforced by the following output from powertop:
>>
>> Untunable Software Issues
>> Description
>> I2C Adapter i2c-3 has no runtime power management
>> I2C Adapter i2c-4 has no runtime power management
>>
>> Optimal Tuned Software Settings
>> Description
>> NMI watchdog should be turned off
>> Enable SATA link power management for host0
>> Enable SATA link power management for host1
>> Enable Audio codec power management
>> Runtime PM for I2C Adapter i2c-1 (i915 gmbus dpb)
>> Runtime PM for I2C Adapter i2c-2 (i915 gmbus dpd)
>> Runtime PM for I2C Adapter i2c-0 (i915 gmbus dpc)
>> Runtime PM for I2C Adapter i2c-5 (SMBus I801 adapter at efa0)
>> Runtime PM for PCI Device Samsung Electronics Co Ltd Device a808
>> Runtime PM for PCI Device Intel Corporation Xeon E3-1200 v5/E3-1500
>> v5/6th Gen Core Processor Thermal Subsystem
>> Runtime PM for PCI Device Qualcomm Atheros AR9462 Wireless Network Adapter
>> Runtime PM for PCI Device Intel Corporation Device 9d24
>> Runtime PM for PCI Device Intel Corporation Device 9d30
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP HD Audio
>> Runtime PM for PCI Device Intel Corporation Xeon E3-1200 v6/7th Gen Core
>> Processor Host Bridge/DRAM Registers
>> Runtime PM for PCI Device Intel Corporation Device 9d4e
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP Thermal
>> subsystem
>> Runtime PM for PCI Device Intel Corporation HD Graphics 620
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP USB 3.0 xHCI
>> Controller
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP SMBus
>> Runtime PM for PCI Device Intel Corporation Xeon E3-1200 v5/v6 / E3-1500
>> v5 / 6th/7th Gen Core Processor Gaussian Mixture Model
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP PCI Express
>> Root Port #5
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP PMC
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP SATA
>> Controller [AHCI mode]
>> Runtime PM for PCI Device Intel Corporation Sunrise Point-LP PCI Express
>> Root Port #9
>>
>> Looking at
>> https://github.com/QubesOS/qubes-linux-kernel/blob/master/config-base, I
>> can see CONFIG_PM_RUNTIME is absent from the config. I'm willing to try
>> recompiling the Linux kernel for Qubes with PM_RUNTIME=y, but my
>> understanding is that I would need to set up a VM running Fedora 25. Before
>> I head down that rabbit hole, I wanted to ask if anyone had experienced
>> similar problems and tried this solution. Further, is there a reason that
>> flag is not currently included in the base config?
>>
>> Thanks in advance,
>>
>>
>> Jonathan
>>
>>
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