[Goodies-dev] xfce4-power-manager turning off monitor on lid close

[Ali Abdallah]

Adam Black wrote:
> I don't have much knowledge of C or C++, and I would like to try and 
> expand my knowledge of these languages in the future.
>
> For the time I'm busy with uni and don't have much time to spare 
> anyway, but I had a quick look at the xset source code and it seems 
> the XResetScreenSaver() function is the one which is worth investigating.

This function is used just for resetting the screen saver bit, usually 
it is used by media player while playing a video stream to avoid screen 
blanking, having XResetScreenSaver interfering here shows a dpms bug then.

>
> I'm not sure whether the problem is due to my particular laptop model. 
> I have a dell xps m1330, and I had the same issues when I tried out 
> the gnome power manager a while back. It could turn off the monitor 
> but couldn't turn it back on automatically.

That's why i said isn't related to the running power manager, i mean 
DPMSForceLevel DPMSModeOn should turn on the screen, if not then dpms is 
broken for your system, and i think it should be reported to X guys.

anyway, i will post on your bug report if i figure out something else.

>
> Adam.
>
>
> Ali Abdallah wrote:
>> Adam Black wrote:
>>>
>>>
>>> Ali Abdallah wrote:
>>>> Adam wrote:
>>>>>
>>>>> Without the "xset s reset" line the screen would remain blank.
>>>>>
>>>>> If someone can take a look at this issue it would be appreciated.
>>>> Do you have a screen saver application running? please check that, 
>>>> try to stop any screen saver daemon and test, see if your screen 
>>>> remains blank.
>>> I do not have a screensaver daemon running.
>>>
>>> If I remotely log into the machine and enter the commands:
>>> >xset dpms force off
>>>
>>> followed by:
>>> >xset dpms force on
>>>
>>> My screen remains blank but the backlight turns on.
>>>
>>> Not sure if this piece of information is relevant or not.
>>
>> Please open a bug report, not sure if this is related to 
>> xfce4-power-manager, but i have something in my mind that i want you 
>> to try.
>>
>> Cheers,
>> Ali.
>>
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