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|description=DeviceKit-power is a little service that takes data from the kernel, and processes it so that it's easy to consume. Known consumers are gnome-power-manager and the XFCE battery widget. DeviceKit-power gets all the data from the kernel over the dbus service DeviceKit. | |description=DeviceKit-power is a little service that takes data from the kernel, and processes it so that it's easy to consume. Known consumers are gnome-power-manager and the XFCE battery widget. DeviceKit-power gets all the data from the kernel over the dbus service DeviceKit. | ||
|actions= | |actions= | ||
# yum install gnome-power-manager DeviceKit-power | # Ensure packages are installed by typing: <pre># yum install gnome-power-manager DeviceKit-power</pre> | ||
# Remove | # Remove and insert the AC adaptor while watching output from the following commands: <pre># devkit --monitor</pre> and <pre># devkit-power --monitor</pre> | ||
# | # Launch ''Applications -> System Tools -> Power Statistics'' and inspect the displayed performance metrics | ||
# | # Examine wake-ups by typing: <pre># devkit-power --wakeups</pre> | ||
# Run devkit-power-daemon in verbose mode: | # Run devkit-power-daemon in verbose mode: <pre># killall devkit-power-daemon; /usr/libexec/devkit-power-daemon --verbose</pre> | ||
# Crash test - devkit-power: use | # Crash test - devkit-power: use <pre># pkill -SIGSEGV devkit-power</pre>; use invalid input | ||
# Crash test - devkit-power-daemon: use dbus-send; use d-feet to execute methods | # Crash test - devkit-power-daemon: <pre># pkill -SIGSEGV devkit-power-daemon</pre>; use dbus-send; use d-feet to execute methods | ||
|results= | |results= | ||
# All steps | # All steps successfully executed with no SELinux errors or permission denials | ||
# If | # Inserting and removing AC adapter is observed by using ''devkit'' monitor tools | ||
# ''gnome-power-statistics'' - All percentages are 0..100 and the values look sensible (for instance, Voltage is 0..20V, not 340034V). If this is the case please open a bug and dump the output of /sys/class/power_supply/*/*. If the values in /sys are wrong, then it's not a DeviceKit-power bug, it's a kernel bug or hardware fault. | |||
# ''devkit-power'' - produces userspace and kernel wakeups, and that these are sensible. The first time you run this command, you'll probably get no data, but just try again in a few seconds, and you should have some values. We don't poll by default all the time, as this itself would use power. | |||
# devkit-power-daemon or devkit-power should not crash unless killed | # devkit-power-daemon or devkit-power should not crash unless killed | ||
{{admon/note|Kernel bug?|If you don't get changed signals in DeviceKit or DeviceKit-power then it's probably a kernel bug. This is known for some Sony laptops, and needs to be fixed in the kernel.}} | |||
}} | }} | ||
[[Category:DeviceKit_Test_Cases]] | [[Category:DeviceKit_Test_Cases]] | ||
Latest revision as of 14:58, 16 March 2009
Description
DeviceKit-power is a little service that takes data from the kernel, and processes it so that it's easy to consume. Known consumers are gnome-power-manager and the XFCE battery widget. DeviceKit-power gets all the data from the kernel over the dbus service DeviceKit.
How to test
- Ensure packages are installed by typing:
# yum install gnome-power-manager DeviceKit-power
- Remove and insert the AC adaptor while watching output from the following commands:
# devkit --monitor
and# devkit-power --monitor
- Launch Applications -> System Tools -> Power Statistics and inspect the displayed performance metrics
- Examine wake-ups by typing:
# devkit-power --wakeups
- Run devkit-power-daemon in verbose mode:
# killall devkit-power-daemon; /usr/libexec/devkit-power-daemon --verbose
- Crash test - devkit-power: use
# pkill -SIGSEGV devkit-power
; use invalid input - Crash test - devkit-power-daemon:
# pkill -SIGSEGV devkit-power-daemon
; use dbus-send; use d-feet to execute methods
Expected Results
- All steps successfully executed with no SELinux errors or permission denials
- Inserting and removing AC adapter is observed by using devkit monitor tools
- gnome-power-statistics - All percentages are 0..100 and the values look sensible (for instance, Voltage is 0..20V, not 340034V). If this is the case please open a bug and dump the output of /sys/class/power_supply/*/*. If the values in /sys are wrong, then it's not a DeviceKit-power bug, it's a kernel bug or hardware fault.
- devkit-power - produces userspace and kernel wakeups, and that these are sensible. The first time you run this command, you'll probably get no data, but just try again in a few seconds, and you should have some values. We don't poll by default all the time, as this itself would use power.
- devkit-power-daemon or devkit-power should not crash unless killed
Kernel bug?
If you don't get changed signals in DeviceKit or DeviceKit-power then it's probably a kernel bug. This is known for some Sony laptops, and needs to be fixed in the kernel.
If you don't get changed signals in DeviceKit or DeviceKit-power then it's probably a kernel bug. This is known for some Sony laptops, and needs to be fixed in the kernel.