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Bug 2024

Summary:	Can't monitor battery and change power settings with KPowerSave
Product:	TDE	Reporter:	Jan Stolarek <jwstolarek>
Component:	other (any)	Assignee:	Timothy Pearson <kb9vqf>
Status:	NEW ---
Severity:	normal	CC:	bugwatch, contact, kb9vqf
Priority:	P5
Version:	R14.0.x [Trinity]
Hardware:	amd64
OS:	Debian Wheezy
Compiler Version:		TDE Version String:
Application Version:		Application Name:
Attachments:	backlight snapshot battery snapshot

Description Jan Stolarek 2014-04-08 04:49:35 CDT

I recently upgraded from Squeeze to Wheezy and at the sam time I upgraded Trinity to 3.5.13.2. I just realized that after this upgrade KPowerSave: 

a) always indicates that the power cord is plug in, even if it's not; 

b) does not show battery level

c) after going into KPowerSave settings display and selecting a power scheme on the first tabs display brightness and CPU speed are greyed out and marked as "not supported".

Calling `acpi -b` indicates battery level correctly.

I also notcied that in KControlCenter I can't control brightness in Display settings. OTOH I can change display broghtness by using function keys. 

I tried purging hal-related packages with no result.

I originally reported this on trinity-users but since no one offered a working solution I'm filling this as a bug. My original mail:

http://trinity-users.pearsoncomputing.net/?0::5918

Identical problem was reported in 2012 by another user:

http://trinity-users.pearsoncomputing.net/?0::2964

Comment 1 Philip Ashmore 2014-12-19 13:37:14 CST

I'm seeing this on my Samsung NP-RF711-S07UK with R14.0.
The brightness buttons don't work.
Power always looks plugged in.
Acpi partial:
our computer seems to have a partial ACPI installation. ACPI was probably enabled, but some of the sub-options were not - you need to enable at least 'AC Adaptor' and 'Control Method Battery' and then rebuild your kernel.

Comment 2 Timothy Pearson 2014-12-19 14:12:29 CST

(In reply to Philip Ashmore from comment #1)
> I'm seeing this on my Samsung NP-RF711-S07UK with R14.0.
> The brightness buttons don't work.
> Power always looks plugged in.
> Acpi partial:
> our computer seems to have a partial ACPI installation. ACPI was probably
> enabled, but some of the sub-options were not - you need to enable at least
> 'AC Adaptor' and 'Control Method Battery' and then rebuild your kernel.

It would be informative to open the TDE Hardware Control Center (Trinity Control Center->Peripherals->Hardware Device Manager), expand the following categories, and post screenshots:
Battery
Power Supply
Unknown Device

Comment 3 Philip Ashmore 2015-04-11 16:04:00 CDT

I've switched to Ubuntu, similar problems.
Sorry for the delay, I thought I'd provided the snapshots already.
Attachments for battery and backlight attached.

Comment 4 Philip Ashmore 2015-04-11 16:06:00 CDT

Created attachment 2478 [details]
backlight snapshot

Comment 5 Philip Ashmore 2015-04-11 16:07:00 CDT

Created attachment 2479 [details]
battery snapshot

Comment 6 Philip Ashmore 2015-04-11 16:10:28 CDT

The first backlight device works great from the Hardware Device Manager, it even goes down to zero brightness.
The second one controls the brightness as well but the slider always resets its position to 100%, even while I'm controlling the slider with the mouse.
Also, (in Ubuntu 14.10 which I'm using) the power manager applet never shows, with the same "you need to recompile your kernel..." message.