[linux-dvb] MSI Mega Sky 55801, cannot scan or tune

[Stephen Williams]

I've recently bought a couple of MSI Mega Sky 580s (identified as MSI
Mega Sky 55801) but I can't get them to scan or tune.

I've pulled the latest version of the v4l-dvb repository, compiled and
installed without any problems. On plugging the stick in I get the
following (promising) dmesg output:

   usb 5-5: new high speed USB device using ehci_hcd and address 6
   usb 5-5: configuration #1 chosen from 1 choice
   input: PC-DTV Receiver PC-DTV Receiver as /class/input/input6
   input: USB HID v1.01 Keyboard [PC-DTV Receiver PC-DTV Receiver] on
usb-0000:00:1d.7-5
   dvb-usb: found a 'MSI Mega Sky 55801 DVB-T USB2.0' in warm state.
   dvb-usb: will pass the complete MPEG2 transport stream to the
software demuxer.
   DVB: registering new adapter (MSI Mega Sky 55801 DVB-T USB2.0)
   DVB: registering frontend 0 (Zarlink ZL10353 DVB-T)...
   Quantek QT1010 successfully identified.
   dvb-usb: MSI Mega Sky 55801 DVB-T USB2.0 successfully initialized
and connected.
   usbcore: registered new interface driver dvb_usb_gl861

I note that this device is always reported as being in a 'warm state',
I assume this means that no firmware is required.

However when attempting to scan I just get:

   [root at localhost]# scandvb /usr/share/dvb-apps/dvb-t/uk-Mendip > channels.conf
   scanning /usr/share/dvb-apps/dvb-t/uk-Mendip
   using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
   initial transponder 754167000 0 2 9 1 0 0 0
   >>> tune to:
754167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
   WARNING: >>> tuning failed!!!
   >>> tune to:
754167000:INVERSION_AUTO:BANDWIDTH_8_MHZ:FEC_2_3:FEC_AUTO:QAM_16:TRANSMISSION_MODE_2K:GUARD_INTERVAL_1_32:HIERARCHY_NONE
  (tuning failed)
   WARNING: >>> tuning failed!!!
   ERROR: initial tuning failed
   dumping lists (0 services)
   Done.

Also, if I try to tune using a channels.conf file generated by a
(working) CinergyT2 in the same system I just get:

   [root at localhost]# tzap -a 0 "BBC ONE"
   using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
   tuning to 778166670 Hz
   video pid 0x0258, audio pid 0x0259
   status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 3794 | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 37c8 | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 369c | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 3704 | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 3860 | snr 0000 | ber 00000000 | unc 00000000 |
   status 00 | signal 3690 | snr 0000 | ber 00000000 | unc 00000000 |

Any help would be greatly appreciated!

Stephen