Working Power Manager in Lubuntu 14.04?

Israel israeldahl at
Sat Aug 30 13:00:06 UTC 2014

Hi Juraj,
I am on 14.04, though I have an iBook on 12.04...
My machine with NVidia graphics had perfect suspend using the default
drivers in 12.04, but for 14.04 I need proprietary drivers to suspend :(

Suspend is pretty much dependent on your graphics card, from what I know.

Hmmm, Jorn was talking the other day about certain aspects of X that
have changed in 14.04, I do not know a whole lot about this, but he may
know more of where you could start testing to figure out where to look.

On 08/30/2014 06:59 AM, Juraj Fiala wrote:
> Thanks. Didsome more research today. Pretty sure it's not my VGA,
> didn't have any trouble before.
> You say you are on 12.04, right? Well according to what I found, the
> bug isn't present there.
> I found this bug, which is marked as "resolved":
> <>.
> And then this bug, which is newer and is marked as "confirmed":
> <>.
> The newer bug seams to be the problem.
> On Sun, 17 Aug 2014 13:53:51 -0500
> Israel <israeldahl at> wrote:
>> 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?
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