Review Request 126630: Do not unconditionally enable logging

[Daniel Vrátil]

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backends/fake/fake.cpp 
<https://git.reviewboard.kde.org/r/126630/#comment61957>

    Keep this one, fake backend is only for unit-tests.


- Daniel Vrátil


On Jan. 5, 2016, 12:27 p.m., Peter Wu wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/126630/
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> 
> (Updated Jan. 5, 2016, 12:27 p.m.)
> 
> 
> Review request for Plasma, Solid, Daniel Vrátil, and Sebastian Kügler.
> 
> 
> Repository: libkscreen
> 
> 
> Description
> -------
> 
> Logging is [enabled by default][1], there is no read to use setFilterRules
> and [override][2] any user preferences in QtProject/qtlogging.ini.
> 
>  [1]: https://doc.qt.io/qt-5/qloggingcategory.html#Q_LOGGING_CATEGORY
>  [2]: https://doc.qt.io/qt-5/qloggingcategory.html#configuring-categories
> 
> 
> Diffs
> -----
> 
>   backends/fake/fake.cpp 94586bc 
>   backends/kwayland/waylandbackend.cpp 0700e22 
>   backends/qscreen/qscreenbackend.cpp 56b5a7c 
>   backends/xcbeventlistener.cpp ee415d7 
>   backends/xrandr/xrandr.cpp fae1dcc 
>   backends/xrandr1.1/xrandr11.cpp 631bcc9 
>   src/debug_p.cpp 5934417 
> 
> Diff: https://git.reviewboard.kde.org/r/126630/diff/
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> 
> Testing
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> Tested on v5.5.2 (cherry-picked, ignored missing backends/kwayland/waylandbackend.cpp).
> 
> Test:
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>  1. Have no kscreen related lines in ~/.config/QtProject/qtlogging.ini
>  2. killall kscreen_backend_launcher
>  3. Change brightness levels via the keyboard. (Result: `RRNotify_OutputProperty` messages in `journalctl`)
>  4. Add the following lines to qtlogging.ini:
> ```
> kscreen.debug=false
> kscreen.xrandr.debug=false
> kscreen.xcb.helper.debug=false
> ```
>  5. killall kscreen_backend_launcher
>  6. Change brightness levels again. (Result: no log spam!)
> 
> 
> Thanks,
> 
> Peter Wu
> 
>

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