Re: Chrome OS Flex on ThinkPad Edge E530

From	Max Nikulin <manikulin@gmail.com>
Newsgroups	linux.debian.user
Subject	Re: Chrome OS Flex on ThinkPad Edge E530
Date	2024-09-21 16:40 +0200
Message-ID	<Jp9rb-dReD-9@gated-at.bofh.it> (permalink)
References	<Jp4KR-dO8n-5@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 21/09/2024 16:35, Roberto Catanuto wrote:
> Hi, the truth is I use Chrome OS Flex on TP Edge E530.
[...]
> Even when the good old laptop is connected to the power supply, the 
> battery begins discharging after about one hour.
[...]
> Do any of you have suggestions about solving this mystery ?

If google allows it, try

     grep '' /sys/class/power_supply/*/*

to see some numbers related to the battery an perhaps to the AC power 
supply. Otherwise boot a Linux live image (e.g. from USB) and try the 
same command and a one that may present battery state in a more readable 
form:

     upower --dump

> The charger is fine when used in another laptop.

Another laptop may be power hungry in less degree. It is better to try 
another power supply with this laptop in addition.

My experience is that if AC adapter is put into a bag twice a day then 
it has to be replaced or repaired after a couple of years due to cable 
wearing. Additional resistance of about ~1 Ohm due to broken wires at a 
bending point is enough to cause issues under some CPU load. In my case 
first symptom was some noise on an external monitor connected by a VGA 
cable, so I suspected a more severe problem.

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Thread

Chrome OS Flex on ThinkPad Edge E530 Roberto Catanuto <roberto03@gmail.com> - 2024-09-21 11:40 +0200
  Re: Chrome OS Flex on ThinkPad Edge E530 "Andrew M.A. Cater" <amacater@einval.com> - 2024-09-21 12:00 +0200
    Re: Chrome OS Flex on ThinkPad Edge E530 Roberto Catanuto <roberto03@gmail.com> - 2024-09-21 15:10 +0200
    Re: Chrome OS Flex on ThinkPad Edge E530 <tomas@tuxteam.de> - 2024-09-22 09:00 +0200
  Re: Chrome OS Flex on ThinkPad Edge E530 Charles Curley <charlescurley@charlescurley.com> - 2024-09-21 14:50 +0200
  Re: Chrome OS Flex on ThinkPad Edge E530 Max Nikulin <manikulin@gmail.com> - 2024-09-21 16:40 +0200

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