gnome – upowerd: “energy_full is greater than energy_full_design” – causes laptop to suspend prematurely (Lenovo Thinkpad T440P)

I am running Ubuntu 18.04.4 LTS x86_64 on a Lenovo Thinkpad T440p. The laptop only runs for about 20 minutes on battery power. In the process of troubleshooting this issue, I have installed tlp and powertop. The output of tlp-stat tipped me off to the fact that the upower daemon is reporting “energy_full” as being greater than “energy_full_design.” This is confirmed by running “systemctl status upower” – I get the following:

“Jul 06 23:21:06 cannon upowerd(2055): energy_full (71.280000) is greater than energy_full_design (47.520000)”

Apparently this is a known bug (see below links) that causes the battery percentage to be inaccurately reported to the OS, causing a premature suspend, but I can’t seem to find a fix.

https://bugs.launchpad.net/ubuntu/+source/upower/+bug/583271
https://bugs.freedesktop.org/show_bug.cgi?id=92547

I have stopped and started the upower daemon, and rebooted the machine to no effect.

Any help is greatly appreciated. This bug effectively makes my laptop a desktop.

Can’t secure boot Dell Vostro laptop running Ubuntu 18.04

I have a Dell Vostro 5481 that runs only Ubuntu 18. I’m not able to boot the operating system, the laptop gets stuck on a screen that says
[FAILED] Failed to start VirtualBox Linux kernel module.
I looked this up and the most common solution was to turn off secure boot before installing stuff on Ubuntu.

I have tried holding F2, F10, and F12 while booting but it takes me straight to this error screen instead of BIOS.

Any help would be appreciated.

How is laptop fan noise volume measured and compared to other sounds?

I’m buying myself a new laptop later this year with the intent of using it for sporadic gaming while not at home (4 weeks around Christmas, maybe 1 week during the year and 2-3 hours every 2 weeks or so). The problem is that I’m usually gaming on my laptop with other people in the room who get bothered the moment the fans start spinning up, so the laptop needs to be low noise while gaming. I’ve been checking a lot of laptop reviews and apparently modern gaming laptop fans at most put out 50 decibels, with most being around 40-45.

When I mentioned this to my father, he said that’s too loud, and I’m not sure what to think of this. He said that 50 decibels was the volume of the noise my mother’s toothbrush made because that was what a site told him, and that was already too loud for him because he could hear it going on in the bathroom from his bedroom. However, I then checked this toothbrush myself and it was well over 70 decibels at a rough 2 arm’s length away according to the sound meter app on my iPhone (NIOH SLM). There’s also a difference between 50 Decibels of annoying toothbrush rattling and 50 Decibels of gentle fan whirring.

I’m currently trying to figure out what exactly 40-50 Decibels mean as fan noise in relation to other noise and what common household object I might be able to compare this to. I’ve done some research, and apparently the testing for laptops during reviews is generally done from the position of the head relative to the laptop, while someone who’s sitting 2 meters away from the laptop would have 6-12 Decibels less than recorded during testing because Decibels decay by 6 decibels every time the distance doubles. Like, if my father says 50 decibels is too loud, that would impact my choice of laptops and how I can use them.

xcode – macos laptop WakeUp with mouse

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This question does not appear to be about Apple hardware or software within the scope defined in the help center.

Closed 12 hours ago by nohillside♦.

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MacOs, How with a laptop, use the mouse or the keyboard (connected in USB) To WakeUp?

On a laptop the WakeUp with MacOs is always achieved by pressing the PowerButton key, the USB ports are made inactive during standby.

DSDT or SSDT does not seem to be the solution. Maybe with the Kernel and a Kext dedicated to the mouse and the keyboard in USB?

Thank you for your answers.

Scrcpy unable to detect my device as device is connected. I have a device having android 8. In laptop wireless card is broadcom

INFO: scrcpy 1.14 https://github.com/Genymobile/scrcpy
adb: error: failed to get feature set: no devices/emulators found
ERROR: "adb push" returned with value 1

version control – Versioning files in Windows 10 Personal Laptop

Often when I am working on a Word Report or a R script etc. I find myself naming a series of files as "foo_file_4_July_3pm_" or "foo_file_4_July_5pm_" etc. just to allow me the ability to roll back in case I make a mistake that messes up things badly.

THis becomes messy pretty soon and clutters my directory with all kinds of files that I really need just for a backup. I remember when I was using Linux I had set up a neat system where periodically I could just commit a file and thus have a versioned set of files every time I made some major changes. I had set up a similar system on Windows a decade ago using Bazaar but that project seems now moribund.

Anyway to do this on Windows? Any recommendations for software that would do this?

PS. I am not looking for a software project sort of collaborative workflow with projects, merges etc. That’s overkill. Just a quick and low-overhead way to version certain files in my laptop’s ecosystem.

Performance and temperature both massively increase while plugged in on my lenovo ideapad gaming laptop but stay extremely low while on battery

Laptop specs: Processor; Intel core i5-10300H 2.50 GHz , 8 gigs ram ideapad gaming laptop lenovo 81Y4 (less than a month old with all drivers updated) Nvidia geforce 1650 and intel uhd graphics which isnt used

Overview: Whilst plugged in, the laptops potential performance, temperature and fans drastically increase, i’m talking from 40-50 fps to 300-400 fps whilst playing low end games such as minecraft and temperatures of up to 70 degrees (and on high end games even apparently 100 degrees!) and obviously the fan roars during such occurrences. The temperature does calm down to around 45-60 with settings lowered but the temperature stays pretty high even when lowered to 30 fps. The major problem with this is that gaming often takes alot of battery power over long terms and it is both distracting and worrying to have the fans roaring at max speed while playing modded minecraft (not very graphically intensive whatsoever) only while plugged in and having to unplug the charger to allow my laptop to cool down. Lastly i’ve noticed that while on desktop, even though charging only increases the 44c to 47-49 the fan noise increases from inaudible to very noticable.

What i’ve tried: To be clear, any research or changes done to my laptops settings have been both minimal and after i have dealt with this problem for a couple of weeks. I was unable to find any performance related tweaks on the basic windows settings and the nvidia cap of 30 fps on battery was still only reaching 40-50 fps when capped at 60 proving that charging was definitely performing much better for some reason.

Sorry if i am a bit unclear in some areas, this is my first time making a post like this; feel free to ask about any areas i have been unclear on, hopefully i can get some insight on how to solve my strange problem.

mint – I want to disable the wifi hardware key on my laptop, it keeps fluctuating on/off on it’s own. I want it to be always on

The keeps on fluctuating on it’s own, and it’s really frustrating because i have to work and it wastes much of my time,for example, the switch is on and all of a sudden it tells me that hardware disabled, then i turn it off and turn it on again and that fixes the problem but it happens every 5 minutes or so.

I use Linux Mint as my primary operating system.

USB Issues – WD19TB dock – Dell XPS 15 laptop – Ubuntu 20.04

I have a Dell XPS 15 (4K OLED) running Ubuntu 20.04 connected to the Dell WD19TB dock.

The dock has connected to it:

  • 2x4K external displays
  • Ethernet
  • USB receiver for my wireless keyboard/mouse

It mostly works (ignoring fractional scaling weirdness). The main issue I have is that sometimes the USB drops meaning my keyboard/mouse stop working. Sometimes its just for a couple of seconds, other times I need to reboot my machine or plug/unplug the dock. I already have “No Security” set for Thunderbolt and Ubuntu shows the dock as “Authorised”. I’m unsure how to proceed.

Thanks,
Gordon

usb – What docking station will work to connect multiple monitors to a new HP Pavilion 15t laptop

I am looking for a USB docking station for my new HP Pavilion 15t laptop. There are currently 2 USB 3.1 Gen 1 Type-A (Data Transfer Only); 1 USB 3.1 Gen 1 Type-C™ (Data Transfer Only, 5 Gb/s signaling rate) ports that I could use. Given this are “data-transfer only” ports is there any docking station that would work?

I tried a basic USB-C dock (read cheap) however given the ports were data transfer only, it did not recognize the monitors.

Thank you