In my Ubuntu 18.10 neither udev rule or hdparms.conf works.
Instead I needed to edit /etc/default/tlp changing DISK_APM_LEVEL_ON_BAT value.
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https://bugs.launchpad.net/bugs/1650074
Title
Work around:
https://wiki.archlinux.org/index.php/hdparm#Persistent_configuration_using_udev_rule
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https://bugs.launchpad.net/bugs/1650074
Title:
Default on battery APM level causes SSD
Full explanation at:
https://askubuntu.com/questions/844459/ubuntu-ssd-was-fast-is-now-extremely-slow
** Changed in: apmd (Ubuntu)
Status: Confirmed => Triaged
** Changed in: ubuntu
Status: Confirmed => Triaged
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: apmd (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1650074
Title:
Defau
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu
Status: New => Confirmed
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Title:
Default on b
** Changed in: ubuntu
Importance: Undecided => High
** Changed in: apmd (Ubuntu)
Importance: Undecided => High
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https://bugs.launchpad.net/bugs/1650074
Title:
Default on battery
** Also affects: apmd (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1650074
Title:
Default on battery APM level causes SSD runing very slow
To m
Thank you for taking the time to report this bug and helping to make
Ubuntu better. It seems that your bug report is not filed about a
specific source package though, rather it is just filed against Ubuntu
in general. It is important that bug reports be filed about source
packages so that people