On Sun, Dec 14, 2008 at 2:01 PM, Klaus Schmidinger <Klaus.Schmidinger@xxxxxxxxxx> wrote:
>>> Some more info: apparently the problem only happens if a DVB-S2 card
>>> (a TT-budget S2 3200 in my case) is (attempted to be) tuned to a DVB-S2
>>> channel after the driver has been freshly loaded. Once the card has
>>> been tuned to a DVB-S channel, subsequent tuning to DVB-S2 channels
>>> works fine.
I have Twinhan 1041 that use the same driver so I could check the problem...
When I run scan-s2 with an initial tuning file that contains only a DVB-S2
transponder (Astra 19.2E)
S 11362000 H 22000000 2/3
and change scan.c so that it first tunes to DVB-S2, as in
/* set up list of delivery systems*/
//fe_delivery_system_t delset[]={SYS_DVBS,SYS_DVBS2};
fe_delivery_system_t delset[]={SYS_DVBS2,SYS_DVBS};
You can also start the entry in INI file with "S2" to scan only in DVB-S2 or "S1" to scan in DVB-S only mode.
I get this with a freshly loaded driver:
===============================================================================
API major 5, minor 0
ERROR: Cannot open rotor configuration file 'rotor.conf'.
scanning /home/kls/vdr/scan-s2-c728a0055904/dvb-s/Astra-19.2E
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder DVB-S2 11362000 H 22000000 2/3 AUTO AUTO
initial transponder DVB-S 11362000 H 22000000 2/3 AUTO AUTO
----------------------------------> Using DVB-S2
>>> tune to: 11362:hS1C23:S0.0W:22000:
DVB-S IF freq is 1612000
FE_SET_PROPERTY TUNE failed: Invalid argument
>>> tune to: 11362:hS1C23:S0.0W:22000:
DVB-S IF freq is 1612000
FE_SET_PROPERTY TUNE failed: Invalid argument
----------------------------------> Using DVB-S
>>> tune to: 11362:hS0C23:S0.0W:22000:
DVB-S IF freq is 1612000
WARNING: >>> tuning failed!!!
>>> tune to: 11362:hS0C23:S0.0W:22000: (tuning failed)
DVB-S IF freq is 1612000
WARNING: >>> tuning failed!!!
ERROR: initial tuning failed
dumping lists (0 services)
Done.
===============================================================================
There seems to be a problem in the driver with AUTO modulation setting. Some drivers do not allow it at all.
2 options:
Explicitly specify the modulation, such as:
S2 11362000 H 22000000 2/3 AUTO 8PSK
Or add the following case into switch in dtv_property_adv_params_sync function in dvb_frontend.c file of the drivers:
case QAM_AUTO:
Just in case, the function will start with:
void dtv_property_adv_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_frontend_parameters *p = &fepriv->parameters;
p->frequency = c->frequency;
p->inversion = c->inversion;
switch(c->modulation) {
case PSK_8:
case APSK_16:
case APSK_32:
case QPSK:
case QAM_AUTO:
p->u.qpsk.symbol_rate = c->symbol_rate;
p->u.qpsk.fec_inner = c->fec_inner;
break;
default:
break;
}
This will solve the problem. I'll send an email to Igor about that.
2 options:
Explicitly specify the modulation, such as:
S2 11362000 H 22000000 2/3 AUTO 8PSK
Or add the following case into switch in dtv_property_adv_params_sync function in dvb_frontend.c file of the drivers:
case QAM_AUTO:
Just in case, the function will start with:
void dtv_property_adv_params_sync(struct dvb_frontend *fe)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dvb_frontend_parameters *p = &fepriv->parameters;
p->frequency = c->frequency;
p->inversion = c->inversion;
switch(c->modulation) {
case PSK_8:
case APSK_16:
case APSK_32:
case QPSK:
case QAM_AUTO:
p->u.qpsk.symbol_rate = c->symbol_rate;
p->u.qpsk.fec_inner = c->fec_inner;
break;
default:
break;
}
This will solve the problem. I'll send an email to Igor about that.
If I run scan-s2 again, I get
===============================================================================
API major 5, minor 0
ERROR: Cannot open rotor configuration file 'rotor.conf'.
scanning /home/kls/vdr/scan-s2-c728a0055904/dvb-s/Astra-19.2E
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
initial transponder DVB-S2 11362000 H 22000000 2/3 AUTO AUTO
initial transponder DVB-S 11362000 H 22000000 2/3 AUTO AUTO
----------------------------------> Using DVB-S2
>>> tune to: 11362:hS1C23:S0.0W:22000:
DVB-S IF freq is 1612000
>>> parse_section, section number 0 out of 0...!
0x03F3 0x2B70: pmt_pid 0x0000 ZDFvision -- arte HD (running)
0x03F3 0x2B7A: pmt_pid 0x0000 IRT -- Simul SD (running)
0x03F3 0x2B84: pmt_pid 0x0000 IRT -- Simul HD (running)
>>> parse_section, section number 0 out of 0...!
service_id = 0x0
service_id = 0x2B70
pmt_pid = 0x1838
service_id = 0x2B7A
pmt_pid = 0x189C
service_id = 0x2B84
pmt_pid = 0x1900
>>> parse_section, section number 0 out of 0...!
VIDEO : PID 0x1842
AUDIO : PID 0x184D
AUDIO : PID 0x184E
TELETEXT : PID 0x1856
>>> parse_section, section number 0 out of 0...!
VIDEO : PID 0x18A6
AUDIO : PID 0x18B0
>>> parse_section, section number 0 out of 0...!
VIDEO : PID 0x190A
AUDIO : PID 0x1914
>>> parse_section, section number 0 out of 1...!
Network Name 'ASTRA'
>>> parse_section, section number 1 out of 1...!
dumping lists (3 services)
arte HD;ZDFvision:11361:hS1C23M5O35:S19.2E:22000:6210:6221=ger,6222=fra:6230:0:11120:1:1011:0
Simul SD;IRT:11361:hS1C23M5O35:S19.2E:22000:6310:6320=ger:0:0:11130:1:1011:0
Simul HD;IRT:11361:hS1C23M5O35:S19.2E:22000:6410:6420=ger:0:0:11140:1:1011:0
Done.
===============================================================================
So apparently not even scan-s2 is able to tune directly to a DVB-S2
transponder without first tuning to a DVB-S transponder.
Can anybody else confirm this, or am I doing something wrong?
Klaus
_______________________________________________
vdr mailing list
vdr@xxxxxxxxxxx
http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
_______________________________________________ vdr mailing list vdr@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/vdr
