On Mon, 2023-10-09 at 11:06 -0400, Matt Morgan wrote: > I really appreciate this. But when I run Powertop, almost everything > is marked as good. The few that were marked bad all had to do with > power to USB devices upon suspend, which sounds like it wouldn't be > relevant while the computer is running. In any case, I changed > everything I could, and still the battery runs down at about > 1%/minute, i.e. it lasts about 100 minutes. In any case, I learned > something from your replies, so even though it hasn't helped with the > computer, I'm glad I asked!
With a lot of devices battery life is extended by the OS switching off things, or putting them into low power: Monitoring the WiFi signal use, and reducing transmission power if it's not needed to blast out at full power. Putting the sound system into standby if it's not doing anything. Throttling the CPU back when idle. Reducing the screen brightness when idle, or all the time. Putting drives into low power mode, etc. This all has consequences. It's judgement of how low it can turn the WiFi down may be wrong. You may miss the first second of everything going through the sound system (I have this, and it means system beeps and alerts aren't heard, and sound editing is messed up). Drives that keep going to sleep and waking up again every few seconds don't save power, and wear the drives out prematurely. Et cetera... Individually, these things don't use a great deal of power, so things like powertop mayn't paint the full picture. But collectively, and continually, it adds up. One of things that pained me when I got into Linux about 20 years ago was CUPS continually polling and logging something every few seconds. Certain services may do that, and some of them probably aren't needed on a laptop, particularly if you're not networking between things on a LAN. -- uname -rsvp Linux 3.10.0-1160.99.1.el7.x86_64 #1 SMP Wed Sep 13 14:19:20 UTC 2023 x86_64 Boilerplate: All unexpected mail to my mailbox is automatically deleted. I will only get to see the messages that are posted to the mailing list. _______________________________________________ users mailing list -- users@lists.fedoraproject.org To unsubscribe send an email to users-le...@lists.fedoraproject.org Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@lists.fedoraproject.org Do not reply to spam, report it: https://pagure.io/fedora-infrastructure/new_issue
