* dvb-c: TT C-1501: tda827x.c: Cannot hold lock at 746 MHz
@ 2010-10-02 14:43 thomas schorpp
2010-10-02 15:19 ` thomas schorpp
0 siblings, 1 reply; 3+ messages in thread
From: thomas schorpp @ 2010-10-02 14:43 UTC (permalink / raw)
To: linux-media
Hello,
Klaas patch is not complete:
http://article.gmane.org/gmane.linux.drivers.dvb/47571
I found a hole at 746MHz with 2.6.34.0 kernel and DE provider kabelbw.de,
Picture fragments and audio bursts only:
Oct 2 15:53:03 tom1 vdr: [16380] receiver on device 1 thread ended (pid=16268, tid=16380)
Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:03 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
Oct 2 15:53:04 tom1 vdr: [16462] setting audio track to 1 (0)
Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:04 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
Oct 2 15:53:05 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
Oct 2 15:53:06 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
Oct 2 15:53:06 tom1 vdr: [16268] switching to channel 494
cycle: 78 d_time: 0.004 s Sig: 51657 SNR: 43690 BER: 1728 UBLK: 55 Stat: 0x00 []
cycle: 79 d_time: 0.004 s Sig: 52428 SNR: 60395 BER: 1728 UBLK: 57 Stat: 0x03 [SIG CARR ]
cycle: 80 d_time: 0.004 s Sig: 50886 SNR: 46517 BER: 1728 UBLK: 95 Stat: 0x00 []
cycle: 81 d_time: 0.007 s Sig: 52428 SNR: 44461 BER: 1728 UBLK: 54 Stat: 0x03 [SIG CARR ]
cycle: 82 d_time: 0.003 s Sig: 51657 SNR: 61423 BER: 1728 UBLK: 5 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
cycle: 83 d_time: 0.237 s Sig: 40092 SNR: 47288 BER: 1048575 UBLK: 66 Stat: 0x00 []
cycle: 84 d_time: 0.005 s Sig: 56283 SNR: 45232 BER: 1728 UBLK: 113 Stat: 0x00 []
cycle: 85 d_time: 0.006 s Sig: 53199 SNR: 46774 BER: 1728 UBLK: 136 Stat: 0x00 []
cycle: 86 d_time: 0.008 s Sig: 50115 SNR: 44975 BER: 1728 UBLK: 55 Stat: 0x00 []
cycle: 87 d_time: 0.004 s Sig: 53199 SNR: 53970 BER: 1728 UBLK: 287 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
cycle: 88 d_time: 0.020 s Sig: 50886 SNR: 61166 BER: 1728 UBLK: 62 Stat: 0x03 [SIG CARR ]
Current parameters:
Frequency: 746000.000 kHz
Inversion: ON
Symbol rate: 6.900000 MSym/s
FEC: none
Modulation: QAM 64
Card is just bought newly:
00:06.0 0480: 1131:7146 (rev 01)
Subsystem: 13c2:101a
Flags: bus master, medium devsel, latency 32, IRQ 17
Memory at fbeffc00 (32-bit, non-prefetchable) [size=512]
Kernel driver in use: budget_ci dvb
Other (tested favourite) channels are tuned in fine.
No network problems for this transponder reported in cable provider's support forums.
Anyone got the chips datasheet or a hint what to tweak in the tda827xa_dvbc[] for this frequency?
{ .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, ?
thx,
Y
tom
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: dvb-c: TT C-1501: tda827x.c: Cannot hold lock at 746 MHz
2010-10-02 14:43 dvb-c: TT C-1501: tda827x.c: Cannot hold lock at 746 MHz thomas schorpp
@ 2010-10-02 15:19 ` thomas schorpp
2010-10-02 16:54 ` thomas schorpp
0 siblings, 1 reply; 3+ messages in thread
From: thomas schorpp @ 2010-10-02 15:19 UTC (permalink / raw)
To: linux-media
Am 02.10.2010 16:43, schrieb thomas schorpp:
> Hello,
>
> Klaas patch is not complete:
> http://article.gmane.org/gmane.linux.drivers.dvb/47571
>
> I found a hole at 746MHz with 2.6.34.0 kernel and DE provider kabelbw.de,
> Picture fragments and audio bursts only:
>
> Oct 2 15:53:03 tom1 vdr: [16380] receiver on device 1 thread ended (pid=16268, tid=16380)
> Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:03 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
> Oct 2 15:53:04 tom1 vdr: [16462] setting audio track to 1 (0)
> Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:04 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
> Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
> Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
> Oct 2 15:53:05 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
> Oct 2 15:53:06 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
> Oct 2 15:53:06 tom1 vdr: [16268] switching to channel 494
>
> cycle: 78 d_time: 0.004 s Sig: 51657 SNR: 43690 BER: 1728 UBLK: 55 Stat: 0x00 []
> cycle: 79 d_time: 0.004 s Sig: 52428 SNR: 60395 BER: 1728 UBLK: 57 Stat: 0x03 [SIG CARR ]
> cycle: 80 d_time: 0.004 s Sig: 50886 SNR: 46517 BER: 1728 UBLK: 95 Stat: 0x00 []
> cycle: 81 d_time: 0.007 s Sig: 52428 SNR: 44461 BER: 1728 UBLK: 54 Stat: 0x03 [SIG CARR ]
> cycle: 82 d_time: 0.003 s Sig: 51657 SNR: 61423 BER: 1728 UBLK: 5 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
> cycle: 83 d_time: 0.237 s Sig: 40092 SNR: 47288 BER: 1048575 UBLK: 66 Stat: 0x00 []
> cycle: 84 d_time: 0.005 s Sig: 56283 SNR: 45232 BER: 1728 UBLK: 113 Stat: 0x00 []
> cycle: 85 d_time: 0.006 s Sig: 53199 SNR: 46774 BER: 1728 UBLK: 136 Stat: 0x00 []
> cycle: 86 d_time: 0.008 s Sig: 50115 SNR: 44975 BER: 1728 UBLK: 55 Stat: 0x00 []
> cycle: 87 d_time: 0.004 s Sig: 53199 SNR: 53970 BER: 1728 UBLK: 287 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
> cycle: 88 d_time: 0.020 s Sig: 50886 SNR: 61166 BER: 1728 UBLK: 62 Stat: 0x03 [SIG CARR ]
>
> Current parameters:
> Frequency: 746000.000 kHz
> Inversion: ON
> Symbol rate: 6.900000 MSym/s
> FEC: none
> Modulation: QAM 64
>
> Card is just bought newly:
>
> 00:06.0 0480: 1131:7146 (rev 01)
> Subsystem: 13c2:101a
> Flags: bus master, medium devsel, latency 32, IRQ 17
> Memory at fbeffc00 (32-bit, non-prefetchable) [size=512]
> Kernel driver in use: budget_ci dvb
>
> Other (tested favourite) channels are tuned in fine.
>
> No network problems for this transponder reported in cable provider's support forums.
>
> Anyone got the chips datasheet or a hint what to tweak in the tda827xa_dvbc[] for this frequency?
>
> { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, ?
>
> thx,
> Y
> tom
>
>
>
Hm, this gets complicated, tuning is fine at 722+754MHz but not on 746MHz,
this is within the same control segment
{ .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
{ .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: dvb-c: TT C-1501: tda827x.c: Cannot hold lock at 746 MHz
2010-10-02 15:19 ` thomas schorpp
@ 2010-10-02 16:54 ` thomas schorpp
0 siblings, 0 replies; 3+ messages in thread
From: thomas schorpp @ 2010-10-02 16:54 UTC (permalink / raw)
To: linux-media
Am 02.10.2010 17:19, schrieb thomas schorpp:
> Am 02.10.2010 16:43, schrieb thomas schorpp:
>> Hello,
>>
>> Klaas patch is not complete:
>> http://article.gmane.org/gmane.linux.drivers.dvb/47571
>>
>> I found a hole at 746MHz with 2.6.34.0 kernel and DE provider kabelbw.de,
>> Picture fragments and audio bursts only:
>>
>> Oct 2 15:53:03 tom1 vdr: [16380] receiver on device 1 thread ended (pid=16268, tid=16380)
>> Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:03 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:03 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
>> Oct 2 15:53:04 tom1 vdr: [16462] setting audio track to 1 (0)
>> Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:04 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:04 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
>> Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
>> Oct 2 15:53:04 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
>> Oct 2 15:53:05 tom1 vdr: [16279] frontend 0 lost lock on channel 496, tp 746
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:05 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
>> Oct 2 15:53:06 tom1 vdr: [16279] frontend 0 regained lock on channel 496, tp 746
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 5
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params:
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda827xa_set_params select tda827xa_dvbc
>> Oct 2 15:53:06 tom1 kernel: tda827x: tda8275a AGC2 gain is: 4
>> Oct 2 15:53:06 tom1 vdr: [16268] switching to channel 494
>>
>> cycle: 78 d_time: 0.004 s Sig: 51657 SNR: 43690 BER: 1728 UBLK: 55 Stat: 0x00 []
>> cycle: 79 d_time: 0.004 s Sig: 52428 SNR: 60395 BER: 1728 UBLK: 57 Stat: 0x03 [SIG CARR ]
>> cycle: 80 d_time: 0.004 s Sig: 50886 SNR: 46517 BER: 1728 UBLK: 95 Stat: 0x00 []
>> cycle: 81 d_time: 0.007 s Sig: 52428 SNR: 44461 BER: 1728 UBLK: 54 Stat: 0x03 [SIG CARR ]
>> cycle: 82 d_time: 0.003 s Sig: 51657 SNR: 61423 BER: 1728 UBLK: 5 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
>> cycle: 83 d_time: 0.237 s Sig: 40092 SNR: 47288 BER: 1048575 UBLK: 66 Stat: 0x00 []
>> cycle: 84 d_time: 0.005 s Sig: 56283 SNR: 45232 BER: 1728 UBLK: 113 Stat: 0x00 []
>> cycle: 85 d_time: 0.006 s Sig: 53199 SNR: 46774 BER: 1728 UBLK: 136 Stat: 0x00 []
>> cycle: 86 d_time: 0.008 s Sig: 50115 SNR: 44975 BER: 1728 UBLK: 55 Stat: 0x00 []
>> cycle: 87 d_time: 0.004 s Sig: 53199 SNR: 53970 BER: 1728 UBLK: 287 Stat: 0x1f [SIG CARR VIT SYNC LOCK ]
>> cycle: 88 d_time: 0.020 s Sig: 50886 SNR: 61166 BER: 1728 UBLK: 62 Stat: 0x03 [SIG CARR ]
>>
>> Current parameters:
>> Frequency: 746000.000 kHz
>> Inversion: ON
>> Symbol rate: 6.900000 MSym/s
>> FEC: none
>> Modulation: QAM 64
>>
>> Card is just bought newly:
>>
>> 00:06.0 0480: 1131:7146 (rev 01)
>> Subsystem: 13c2:101a
>> Flags: bus master, medium devsel, latency 32, IRQ 17
>> Memory at fbeffc00 (32-bit, non-prefetchable) [size=512]
>> Kernel driver in use: budget_ci dvb
>>
>> Other (tested favourite) channels are tuned in fine.
>>
>> No network problems for this transponder reported in cable provider's support forums.
>>
>> Anyone got the chips datasheet or a hint what to tweak in the tda827xa_dvbc[] for this frequency?
>>
>> { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1}, ?
>>
>> thx,
>> Y
>> tom
>>
>>
>>
>
> Hm, this gets complicated, tuning is fine at 722+754MHz but not on 746MHz,
> this is within the same control segment
>
> { .lomax = 720000000, .svco = 2, .spd = 0, .scr = 1, .sbs = 4, .gc3 = 1},
> { .lomax = 802000000, .svco = 2, .spd = 0, .scr = 2, .sbs = 4, .gc3 = 1},
>
Tweaking those parameters doesn't change anything.
Fixed. Bad IEC Connectors. Avoid Philips coaxial cable products or TT Tuner connectors :-/
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2010-10-02 16:54 UTC | newest]
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2010-10-02 14:43 dvb-c: TT C-1501: tda827x.c: Cannot hold lock at 746 MHz thomas schorpp
2010-10-02 15:19 ` thomas schorpp
2010-10-02 16:54 ` thomas schorpp
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