[linux-dvb] fragments and framedrops with Hauppauge DVB-s

[Dominic Scharfe <VivaLaMuerte@gmx.de>]

I have a problem with my Hauppauge DVB-s Card.

I installed the latest driver (linuxtv-dvb-1.0.0) succesful.

I load the modules with make 
insmod CARDS=av7110
and it also seems to succed

my /var/log/messages says:

Sep  8 20:13:05 localhost kernel: Linux video capture interface:
v1.00
Sep  8 20:13:05 localhost kernel: DVB: registering new adapter
(Siemens/Technotrend/Hauppauge PCI rev1.3).
Sep  8 20:13:05 localhost kernel: PCI: Found IRQ 12 for device
00:0c.0
Sep  8 20:13:05 localhost kernel: PCI: Sharing IRQ 12 with 00:07.2
Sep  8 20:13:05 localhost kernel: PCI: Sharing IRQ 12 with 00:07.3
Sep  8 20:13:05 localhost kernel: DVB: registering frontend 0:0
(Alps BSRV2)...
Sep  8 20:13:09 localhost kernel: DVB: AV7111(0) - firm f0240009,
rtsl b0250018, vid 71010068, app 8000261a
Sep  8 20:13:09 localhost kernel: DVB: AV7111(0) - firmware supports
CI link layer interface
Sep  8 20:13:09 localhost kernel: av7110(0): adac type set to 0
Sep  8 20:13:09 localhost kernel: Siemens/Technotrend/Hauppauge PCI
rev1.3 adapter 0 has MAC addr = 00:d0:5c:1e:9d:7d

but there is a problem. when i want to switch to a channel with szap
i get the following:

root:/usr/src/DVB/apps/szap# ./szap MTV\ Central
reading channels from file '/root/.szap/channels.conf'
zapping to 'MTV Central':
sat 0, frequency = 11739 MHz V, symbolrate 27500000, vpid = 0x0bd7,
apid = 0x0bd8
using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
status 01 | signal 1d1d | snr 5b5b | ber 00032e10 | unc ffffffff |
status 1f | signal 7070 | snr 6060 | ber 00032e10 | unc ffffffff |
FE_HAS_LOCK
status 0c | signal 1c1c | snr 0f0f | ber 00032e10 | unc ffffffff |
status 1f | signal 5c5c | snr 3c3c | ber 000935c6 | unc 00000052 |
FE_HAS_LOCK
status 1f | signal 5454 | snr 1a1a | ber 000935c6 | unc ffffffff |
FE_HAS_LOCK
status 0d | signal 4040 | snr 7979 | ber 0002b714 | unc ffffffff |
status 1f | signal 6666 | snr 2a2a | ber 0002b714 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 5656 | snr 2424 | ber 0002b714 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 6666 | snr 5e5e | ber 00039b20 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 5454 | snr 3434 | ber 00039b20 | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 6161 | snr 6969 | ber 0003364e | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 5e5e | snr 1919 | ber 0003364e | unc ffffffff |
FE_HAS_LOCK
status 1f | signal 6565 | snr 4040 | ber 0003364e | unc 00000027 |
FE_HAS_LOCK
status 1f | signal 5c5c | snr 5050 | ber 0002c772 | unc 00000010 |
FE_HAS_LOCK
status 1f | signal 4848 | snr 7979 | ber 0002c772 | unc 00000021 |
FE_HAS_LOCK
status 1f | signal 5c5c | snr 4d4d | ber 00015766 | unc 00000038 |
FE_HAS_LOCK
status 1f | signal 5454 | snr 3b3b | ber 00015766 | unc 00000034 |
FE_HAS_LOCK
status 0d | signal 3737 | snr 6a6a | ber 0001e96a | unc 00000040 |
status 1f | signal 5353 | snr 7e7e | ber 0001e96a | unc 0000006c |
FE_HAS_LOCK
status 1f | signal 6161 | snr 4c4c | ber 0001e96a | unc 0000004d |
FE_HAS_LOCK


i think the signal is ok, and mostly i hab FE_HAS_LOCK, but unc is
really high, so i get many fragments and framedrops.

i have this problem also with other channels, mtv, has the best
quality, at the most other channels i allways get unc ffffffff.

cat /proc/interrupts says:
CPU0
0:    1402683          XT-PIC  timer
1:      63950          XT-PIC  keyboard
2:          0          XT-PIC  cascade
10:     891513          XT-PIC  EMU10K1, radeon@PCI:1:0:0
11:     220076          XT-PIC  eth0
12:      78292          XT-PIC  usb-uhci,usb-uhci, saa7146(0)
14:      48021          XT-PIC  ide0
15:         82          XT-PIC  ide1
NMI:          0
ERR:          0

i also tried without usb-uhci, and i got also
that problem, so i don't think it's an interrupt problem.

my distribution is debian woody, but i also had the same problem with mandrake 9.1.
under windows it works, so it's not a hardware problem.

my pc:
cpu = athlon xp 1800
RAM = 512 SDRAM 133
kernel = 2.4.21 (also had the problem under2.4.18)
TV = Hauppauge WinTV DVBs rev 1.3
graphic = Radeon 9000 Pro vivo

i hope someone can help me.

PS: sorry for my bad english (i use to speak german)
     
_______________
Dominic Scharfe

+ www.FD-Soft.de.vu
+ UIN: 98183756


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