[arch-general] Screen lock stopped working

David Rosenstrauch darose at darose.net
Thu Dec 22 14:57:33 UTC 2016


I was able to pin this down to an issue with xfce4-power-manager:

https://bugzilla.xfce.org/show_bug.cgi?id=12857

DR

On 12/22/2016 09:51 AM, yaky83--- via arch-general wrote:
> Le 19 Sep, 2016, David Rosenstrauch a écrit:
>> On 09/16/2016 12:14 PM, David Rosenstrauch wrote:
>>> I've noticed that my screen lock / screensaver has stopped engaging as
>>> of a couple of days ago.  I check the settings (which I haven't changed
>>> recently), but they seem to be set correctly.
>>>
>>> Anyone have an idea what package upgrade might have caused this and/or
>>> which bugs I should watch for a resolution?
>>>
>>> I'm running XFCE desktop btw.
>>>
>>> Thanks,
>>>
>>> DR
>>
>> I've discovered something else odd going on that seems to be related
>> to this issue.
>>
>> If I activate the screen lock by hand, and the screensaver starts
>> running, I noticed that within say 30 seconds the screensaver pauses
>> and displays the login box - as if someone pressed a key on the
>> keyboard or moved the mouse.  This would explain why the screensaver
>> never engages - it keeps getting keyboard or mouse input (or at least
>> thinks it is) that prevents it.
>>
>> But that makes the problem even more puzzling, as my hands are not on
>> the keyboard or mouse.  My next guess was that perhaps there's a
>> broken key on the keyboard that keeps pressing.  But I used xev, and
>> it shows no keyboard or mouse events while my hands are off.
>>
>> Is anyone else seeing similar behavior?  If not, I guess I'll have to
>> assume this is a hardware problem.  But if so, I'd appreciate any
>> suggestion on how I might go about debugging.
>>
>> Thanks,
>>
>> DR
>
> Hi!
>
> Sorry for being so late.
>
> I had a similar problem a few weeks ago. I had just started using a HDMI
> cable, and there are two HDMI inputs on the monitor. When the screen locker
> was activated, the monitor simply switched to the other HDMI input which
> defeated the screen lock. The solution was to turn auto-switch input to
> off.
>
> RB


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