I just installed with the Live CD and I'm very impressed. But, I don't understand why I can only get the first 4 cameras working with my 8 port card. I'm using a Kword brand 8 port card. I added the monitors using /dev/video and Device Channels 0 - 7 but only Channels 0 - 3 are working.
Since my card has 4 RCA jacks and a "duaghter" card with 4 more ports - I'm thinking maybe I need to use something like /dev/video1 with Device Channels 0 - 3. But, I don't see a /dev/video1 in the /dev directory.
Do I have to create a /dev/video1 or is there something else I need to do?
Thanks,
Matt
8 port card but only 4 are working...
hi there
probly my configuration is close enough, so this may help u
configuration
PC:
DFI Lanparty NF2 Ultra B
256 MByte Infineon
AthlonXP 3200+
200 GByte WD (ATA)
Provideos PV-156 (BT878 based, 4xbt878 chip 8port - 4 onboard, another four w/ some extension mini-card)
some cheap AGP-Card (21€)
300W PSU
Cams:
im trying here with 2 BulletCams powered via PSU
ZM_LiveCD 1.19.1
Mandrake updated cooker Kernel 2.6.7
when i connect these cams to my card (#1 & #5) i figured out, that
ZM is only able to 'see' fout /dev/video devices 0-3
but somewhere i've read that if u have such cards with only 4 chips u have to add the cams as channel 0 (port #1) and channel 1 (for port #5) but both with /dev/video0
well, to cut it short ... it works ...
the cams r flickering though, but i rather think this is some hardware issue.
IMO this is because one chip works with 50 fps and used by 2 cams it can only digitalize 25 fps each. so this is how u're getting 8 cams to 4 bt878 chips, you assign each chip 2 channels (0&1)
well, i hope this helps
greetz flummox
probly my configuration is close enough, so this may help u
configuration
PC:
DFI Lanparty NF2 Ultra B
256 MByte Infineon
AthlonXP 3200+
200 GByte WD (ATA)
Provideos PV-156 (BT878 based, 4xbt878 chip 8port - 4 onboard, another four w/ some extension mini-card)
some cheap AGP-Card (21€)
300W PSU
Cams:
im trying here with 2 BulletCams powered via PSU
ZM_LiveCD 1.19.1
Mandrake updated cooker Kernel 2.6.7
when i connect these cams to my card (#1 & #5) i figured out, that
ZM is only able to 'see' fout /dev/video devices 0-3
but somewhere i've read that if u have such cards with only 4 chips u have to add the cams as channel 0 (port #1) and channel 1 (for port #5) but both with /dev/video0
well, to cut it short ... it works ...
the cams r flickering though, but i rather think this is some hardware issue.
IMO this is because one chip works with 50 fps and used by 2 cams it can only digitalize 25 fps each. so this is how u're getting 8 cams to 4 bt878 chips, you assign each chip 2 channels (0&1)
well, i hope this helps
greetz flummox
Hi Matt,
The post by flummox has good info if your card has 4 capture chips. I am not familiar with that card but suspect that it has only one capture chip. During bootup the kernel will usually find each capture chip and recognize each one as a device. Device file system (devfs) then creates an entry in /dev for each. You should not have to create /dev/video1 yourself.
You might post to one of the hardware forums to find better info on this particular card.
Best regards
Ross
The post by flummox has good info if your card has 4 capture chips. I am not familiar with that card but suspect that it has only one capture chip. During bootup the kernel will usually find each capture chip and recognize each one as a device. Device file system (devfs) then creates an entry in /dev for each. You should not have to create /dev/video1 yourself.
You might post to one of the hardware forums to find better info on this particular card.
Best regards
Ross