Red Hat Bugzilla – Bug 1270838
[udisks2] APM level reset to default value 128 after resume from suspend
Last modified: 2017-07-25 15:35:09 EDT
Description of problem:
After setting the APM level of my hard disk to 255 by means of gnome-disk-utility, the APM level is actually set to 255 as verifified by means of executing 'hdparm -B /dev/sda'. However, after suspend and resume, the APM level is set to 128 as verified by executing 'hdparm -B /dev/sda' again.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Set APM level to 255.
2. Suspend and resume.
3. Run 'hdparm -B /dev/sda'.
The APM level is 128.
The APM level is 255.
- The hard disk is a Hitachi HTS723216L9SA60 installed in a Lenovo ThinkPad T400.
- Moreover, after resume from suspend, gnome-disk-utility erroneously reports the target value 255 instead of the real value 128.
It seems that udisk2 needs to provide systemd support with a script in /usr/lib/systemd/system-sleep/ similar to the following which resets the APM level to 254 after resume from suspend:
[ "$1" = "post" ] && exec /usr/sbin/hdparm -B 254 /dev/sda
This issue affects Fedora 23 but likewise Fedora 24 including package udisks2-2.1.7-1.fc24.
Do you have a freedesktop Bugzilla account? This would be good to report upstream. Ideally you would do that, so you stay CCed on the issue, but I can forward it if you prefer.
udisks is retired. Reassigning to storaged maintainers to assess whether the bug might affect storaged.
Fedora 24 is using udisks2 by default unlike Fedora 25 which is why I have reported the present issue a second time for storaged and Fedora 25 (storaged just behaves the same): bug 1270838 for udisks2 and Fedora 24 and bug 1357190 for storaged and Fedora 25.
What is needed for Fedora 24 is a new build of the existing package storaged which obsoletes udisks2; only then it is justified to set the component from udisks2 to storaged.
This package has changed ownership in the Fedora Package Database. Reassigning to the new owner of this component.
There's been some discussion about this upstream: I have even created some workaround in storaged to re-set the APM level on resume. However storaged/udisks2 is a D-Bus activated service and nothing guarantees it would be running at the time tha APM level needs to be set (e.g., on boot).
(In reply to Tomas Smetana from comment #7)
According to my comment from 2016-07-22 at https://github.com/storaged-project/storaged/issues/72, the test build storaged-2.6.2-2.6.fc23 does restore the correct APM level after resume from suspend. However, there was an issue regarding the precise moment when drive settings got applied.
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