[pvrusb2] HVR-1900 dvb-t problems

[Armin Gerritsen]

Pietro Popoli <pietro.popoli at ...> writes:

> 
> I did some tests on loading the firmware dvb-fe-tda10048-1.0.fw.
> 
> I used the firmware downloaded from
> http://tw1965.myweb.hinet.net/Linux/firmware.tar.gz.
> 
> The upload of the firmware is required, if not already loaded into the
> HVR-1900, when an application DVB-T is launched.
> 
> This is the output of dmesg:
> tda10048_firmware_upload: waiting for firmware upload
> (dvb-fe-tda10048-1.0.fw)...
> usb 1-4.1: firmware: requesting dvb-fe-tda10048-1.0.fw
> tda10048_firmware_upload: firmware read 24878 bytes.
> tda10048_firmware_upload: firmware uploading
> tda10048_firmware_upload: firmware uploaded
> 
> In my version of the HVR-1900 73219 LF REV D1F5 after loading the firmware
> dvb-fe-tda10048-1.0.fw DVB-T still does not work.
> 
> I followed the suggestions of Leonardo Muffatti (post
> http://www.isely.net/pipermail/pvrusb2/2010-February/002729.html) I thank
> very much for sending me the necessary changes in sources of V4L.
> 
> With the changes of Leonardo now dvb-t works.
> 
> Leonardo also sent me his version of the firmware dvb-fe-tda10048-1.0.fw
> different from those found on the web.
> I tried both firmware. It seems to me, but it could be a subjective feeling,
> that with the firmware of Leonardo the video is more smooth.
> Thank to Aljaž, Leonardo and Mike for their cooperation.

Hello Pietro,

Could you elaborate a bit more on what 'the changes are'.

I seem to have the same issue as you have: analog works, with digital doesn't. 
It loads the firmware, but finds no frequencies using w_scan. Using tzap to 
tune to a know frequency doesn't produce a lock.

The patches however that you refer too, in case they are missing, would 
however have caused the tuner not to load the firmware at all, as it wouldn't 
detect the device at all.

I know this, as I had an older dvb drop, and had to apply these patches to 
make the tuner to be detected at all. And indeed as elsewhere noted, if you 
have a more recent drop, these patches are already in. The fact that you're 
system already detected it, also suggests you already had these patches.

So the question remains, what solved it for you?

But correct me if I'm wrong here.

Regards,

Armin