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Raspberry PI2/Openelec 6.0/MediaPro III : Freeze or "no data" after some hours

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Want2Play:
This time, there is no freeze, but it was impossible to see a channel.

My HUB is a "DIGITUS / 4-Port USB 2.0 / Design HUB / DA-70220" with a power supply 5 V / 2 A. There is only the MediaPro connected to the HUB, nothing else.

Connected to the Raspberry, I have a keyboard and a Wifi dongle for a "Rii 8 " Keyboard - http://www.kubii.fr/peripheriques-usb-rapsberry-pi/671-mini-clavier-rii-mini-i8-azerty-6952917708002.html. But I kept the keyboard "power off" when I don't use it.



--- Zitat ---I guess it has something to do with some power failure, either the USB hub or the RPI might not have enough power.
--- Ende Zitat ---
If it is the HUB, what's the power necessary for the MediaPro III?

Sundtek:
Connect the tuner directly to the Raspberry PI if possible and use the other ports for the other devices.

The tuners are extremely low power, 200mA for DVB-C, still a bit more for DVB-T maybe 250-300mA.

The only known reason for such issue is a bad AC adapter (but in your case it could be due the hub as well)

Want2Play:
I'm waiting a 5V / 3 A power supply for the Raspberry... We'll see if it's the only problem - I hope that.

Sundtek:
First of all try to connect the tuner directly not via the USB hub.

Want2Play:
Bravo ! Good diagnostic !

This evening I've power on my Raspberry and my HUB. But VDR proclaims "no data" because my HUB's power supply is dead  :(

I've plugged the tuner directly on the Raspberry and it's WORKING !!  :)

For change the "scaling_governor" the solution is :

--- Code: ---cd /storage/.config
touch autostart.sh
chmod a+x autostart.sh
vi autostart.sh

--- Ende Code ---

This is my "autostart.sh"

--- Code: ---(
  for gov in /sys/devices/system/cpu/cpu[0-9]*/cpufreq/scaling_governor
  do echo "performance" > $gov
  done
) &

--- Ende Code ---

Two references :
* http://openelec.tv/forum/148-usage/77654-setting-cpu-scaling-governor-to-performance
* http://wiki.openelec.tv/index.php?title=Autostart.sh

About of your demands
--- Zitat ---First of all try to connect the tuner directly not via the USB hub.
--- Ende Zitat ---
All paper that I've read said to use a HUB to connect the tuner... Maybe for the previous version of the Raspberry Pi2 ???


But, don't be too optimistic, few minutes it's not enough to validate the solution. I'm going to schedule a record and see tomorrow if I can see a channel.

If this is the solution, the next step is to have the remote control usable  ;)

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