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Re: Laptop fails to suspend

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Il 30/03/19 00:56, Sam Smith ha scritto:


> I have an older Lenovo T520 laptop that I've ran Debian on for years and 
> I have never had any issues with putting it to "sleep" or suspending 
> when closing the lid. However after upgrading from stretch to Buster, 
> suspend fails to work.

While researching a similar bug [1] on my EEEpc (similar in the sense 
that it affected suspend and manifested itself after upgrade), I recall 
seeing a few bugs that specifically mentioned Lenovo:
https://bugzilla.kernel.org/

So, first thing, have a look if the issue is already known and perhaps 
fixed upstream.

Next, try these guides:
https://wiki.ubuntu.com/DebuggingKernelSuspend
https://wiki.archlinux.org/index.php/Power_management/Suspend%20and%20hibernate

If you want to bisect kernel changes to find out exactly when it broke, 
just use the archives.[2]

Good luck :)


[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=919227
[2] https://snapshot.debian.org/

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Thread

Laptop fails to suspend Sam Smith <debian@net153.net> - 2019-03-30 01:00 +0100
  Re: Laptop fails to suspend Esteban L <esteban@little-beak.com> - 2019-03-30 04:40 +0100
  Re: Laptop fails to suspend Andrea Borgia <andrea@borgia.bo.it> - 2019-03-30 08:10 +0100
    Re: Laptop fails to suspend Sam Smith <debian@net153.net> - 2019-04-28 00:30 +0200
      Re: Laptop fails to suspend Andrea Borgia <andrea@borgia.bo.it> - 2019-04-28 20:10 +0200
      Re: Laptop fails to suspend Sam Smith <debian@net153.net> - 2019-05-08 17:50 +0200

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