On 10/09/2014 07:13 AM, Lars Noodén wrote:
On 10/06/2014 09:41 PM, Jape Person wrote:
On 10/06/2014 10:49 AM, Lars Noodén wrote:
...
What needs to be added or configured to get a brightness slider or other
brightness control for the backlight?
...
I think at this version they switched from using a notification area
applet for the power manager and eliminated the old display brightness
applet from the items available for the panel.
Try adding xfce4-power-manager-plugins to the panel. You should see a
display brightness setting in the menu you get when you left-click on
this item in the panel.
I've also got xfce4-power-manager-plugins 1.4.1-1 installed. Adding it
to the panel gives me only battery status.
So when you left-click on that applet's icon in the panel, the only
thing displayed in the menu dropdown is the battery status? I get an
indicator for the main battery, the battery on the wireless mouse, the
battery on the wireless keyboard, a Display Brightness slider bar, a
checkbox for Presentation Mode, and a line called "Power Manger
settings..." which brings up the Xfce Power Manager dialog.
There should also be a checkbox on the Xfce Power Manager dialog's
Display tab that might re-enable your display brightness buttons.
...
I've rummaged around there again. There are four tabs in the power
manager dialog (general, system, display, devices) and though some can
turn off the screen or put the machine into hibernate or suspend, none
seem to offer the option of changing the display brightness.
Maybe it's in another package.
On the Display tab of the Xfce Power Manager dialog I have a checkbox fo
"Handle display power management which has set of sliders under it for
controlling the timing for blanking, sleeping, and switching off.
Under that is a section called Brightness reduction which the timing and
degree of brightness reduction of the panel for "on battery" and
"plugged in" status.
There are so many possible issues to look for. I mean there is the
question of dependencies and recommends, then the involvement of acpi /
acpid, upower, and polkit.
If I had this problem, I'd start aptitude in interactive (ncurses) mode
and examine each involved entity to see if all of its recommends were
present on the system.
Regards,
/Lars
I'm sorry I haven't been able to help.
Regards,
Jape
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