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 -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/c9f32b26-92c2-43e9-8063-551b348ecbb5n%40googlegroups.com.
