Librem 14: PureOS, Qubes and LibremKey

fsflover · January 27, 2021, 7:48am

Power Consumption 2-3x after first suspend/resume

opened 12:55AM - 01 Aug 19 UTC

closed 02:33PM - 07 Dec 24 UTC

C: Xen P: default C: power management affects-4.1 eol-4.1

**Qubes OS version** R4.0.2-rc1 **Affected component(s) or functionality** …Power Management (Xen) **Brief summary** Power usage 2-3X after first suspend/resume cycle **To Reproduce** (Tested on Lenovo T470 and T490) 1. Turn off laptop 2. Turn on laptop and login to desktop 3. Note power usage using powertop, and look at power consumption - you can wait as long as you like for sampling 4. Suspend computer by closing lid or through system menu 5. Resume computer 6. Note that power usage reported in powertop is 2-3x what it was before, and is sustained until the machine is rebooted **Expected behavior** Power management is restored after resumption, and not materially different than before putting laptop to sleep. **Actual behavior** Laptop consumes 2-3x power consumption in watts before suspend **Screenshots** N/A **Additional context** Not sure how many systems this impacts. I lived with this for years on the T470, but when I got the T490 the symptoms were way more noticeable and I can't carry around a spare battery anymore to mitigate it. **Solutions you've tried** * Setting xempm cpufreq to "ondemand" * Using tlp in dom0 before/after suspend * Testing on more than one device (T470/T490) * Updating to kernel-latest **Relevant [documentation](https://www.qubes-os.org/doc/) you've consulted** * https://wiki.xenproject.org/wiki/Xenpm_command * https://www.qubes-os.org/doc/newer-hardware-troubleshooting/ * https://groups.google.com/forum/#!searchin/qubes-users/T470%7Csort:date/qubes-users/eqhw02hHtCk/zf77k7q5EwAJ * https://groups.google.com/forum/#!searchin/qubes-users/T490%7Csort:date/qubes-users/Z0Kfm53zMxQ/oRRR155qDQAJ **Related, [non-duplicate](https://www.qubes-os.org/doc/reporting-bugs/#new-issues-should-not-be-duplicates-of-existing-issues) issues** none

I’m running Qubes on Librem 15 and it’s pretty quiet after this bug is fixed.