Working Power Manager in Lubuntu 14.04?

Israel israeldahl at
Sun Aug 17 18:53:51 UTC 2014

Hi Juraj,
I don't know a lot about those specific cards.  I have a similar one in
an old PowerPC iBook, and I am not sure if suspend works with it...
14.04 had some issues with PPC and some kernel modules get messed up,
due to a bug in hw-detect.  I haven't had the time to debug it, so I use
12.04... which is unfortunate, as the LXDE components do not get
updated, and there is no PPA for PPC :)

That said, there may be a workaround.

I have found with certain cards you can add a boot parameter (in GRUB2)
that can help.
You may do a quick duckduckgo search to see if anyone else has had this
issue in recent Kernels with your card, and see if you can find anything.

For my current Nvidia card I had perfect suspend with 12.04 and the open
source drivers.  Then, in 14.04 they broke and I have to use the
not-as-good closed source drivers, only to have suspend :(

If I have time I will try to check out your issue on the internet, but I
am very busy these days...

On 08/17/2014 11:55 AM, Juraj Fiala wrote:
> Hi Israel, thanks for the reply.
> lspci | grep VGA outputs:
> 01:05.0 VGA compatible controller: Advanced Micro Devices, Inc.
> [AMD/ATI] RS780M [Mobility Radeon HD 3200]
> It's an integrated graphics card, taking 256MB from the (1GB) RAM.
> On Sun, 17 Aug 2014 07:56:47 -0500
> Israel <israeldahl at> wrote:
>> Hi Juraj,
>> I have had no trouble with the xfce4-power-manager putting my computer
>> to sleep.
>> The graphics card is usually the main issue with Suspend.  What kind of
>> card do you have?
>> you can use something like
>> lspci | grep VGA
>> to get the exact model.
>> This might help us figure out how to help you better :)
>> On 08/17/2014 12:52 AM, Juraj Fiala wrote:
>>> Hiya. First mail to a mailing list ever so I apoligize for anything I
>>> shouldn't have done. Thought that maybe this should be a question on
>>> askubuntu, but this way it's problably better.
>>> I'm running Lubuntu 14.04, and loving the blazing speed. It's the
>>> fastest OS I ever had. I can run a 64 bit system on 738MB RAM.
>>> The only thing I don't like is the power manager. I can't get it to
>>> work. I set 'Laptop Mode' on in 'Default applications for LXSession',
>>> xfce4-power-manager starts up correctly, handles everything correctly,
>>> except putting the computer to sleep.
>>> I heard that xfce4-power-manager isn't patched to work with systemd. I
>>> found a solution on Ask Ubuntu that will enable xfce4-power-manager to
>>> put the laptop to sleep when the lid shuts down, by setting
>>> "HandleLidSwitch" in /etc/systemd/logind.conf to "ignore". I tried, and
>>> indeed, xfce4-power-manager was able to put the laptop to sleep on lid
>>> close, but it was buggy (it didn't sleep every time), and it didn't
>>> lock the screen.
>>> So I tried the opposite, as suggested in the answer. I set
>>> "HandleLidSwitch" to the default (suspend), and turned off all lid
>>> actions in xfce4-power-manager. A little improvment, but still, doesn't
>>> work all the time, sometimes fails or just ignores, but at least it
>>> locks the screen.
>>> Has anyone here got a working power manager? If yes, how?
>> -- 
>> Regards
>> -- 
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