https://bugs.kde.org/show_bug.cgi?id=372667

--- Comment #5 from Mauro Carvalho Chehab <mchehab+...@kernel.org> ---
(In reply to knossos456 from comment #3)
> I can add for point 3 that I have 60 % signal under windows + Dvbviewer  and
> only 0,1 or 2 % signal under ubuntu for that dvbs2 card.
> Semms a driver problem

Well, the problem is that, with DVBv3 API, there were no standard to report the
signal scale. This is now fixed at the DVB Kernel core, but several drivers
still need to be updated and this is not an easy task, as an experienced
developer, with a signal generator, should do lots of experimental measurements
to adjust the scale.

On the drivers that still use percentages, the signal value returned by the
Kernel is divided by the maximum possible value (65535). However, on several
drivers, the signal is actually a value in dB x 100, with is divided by 65535,
providing very low values for signal.

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