ZoneMinder Forums

I am setting up ZM with several cams. They will not show up at the same time. digging in the forums leads me to believe that the issue is shared memory. I set the shared memory like mentioned in the FAQ. that is not correcting the problem. I am wondering if I did not compile a necessary option at compile time.

Is it possible that my problem is not shared mem?


zmdc.log
04/04/08 10:18:28.091603 zmdc[5241].INF [Starting pending process, zmc -m 4]
04/04/08 10:18:28.099782 zmdc[5241].INF ['zmc -m 4' starting at 08/04/04 10:18:28, pid = 13469]
04/04/08 10:18:31.128770 zmdc[5241].ERR ['zmc -m 4' exited abnormally, exit status 255]
04/04/08 10:28:31.072576 zmdc[5241].INF [Starting pending process, zmc -m 4]
04/04/08 10:28:31.076775 zmdc[5241].INF ['zmc -m 4' starting at 08/04/04 10:28:31, pid = 14529]
04/04/08 10:28:34.117695 zmdc[5241].ERR ['zmc -m 4' exited abnormally, exit status 255]


/var/log/messages
Apr 4 10:55:50 zone-minder zmdc[17872]: INF ['zmc -d /dev/video1' started at 08/04/04 10:55:50]
Apr 4 10:55:50 zone-minder zmdc[17253]: INF ['zmc -d /dev/video1' starting at 08/04/04 10:55:50, pid = 17872]
Apr 4 10:55:50 zone-minder zmc_dvideo1[17872]: INF [Debug Level = 0, Debug Log = <none>]
Apr 4 10:55:50 zone-minder zmwatch[17288]: INF ['zmc -d /dev/video1' starting at 08/04/04 10:55:50, pid = 17872]
Apr 4 10:55:53 zone-minder zmc_dvideo1[17872]: INF [Starting Capture]
Apr 4 10:55:53 zone-minder zms[17319]: INF [Got signal (Terminated), exiting]
Apr 4 10:56:00 zone-minder zms[17892]: INF [Debug Level = 0, Debug Log = <none>]
Apr 4 10:56:05 zone-minder zms[17901]: INF [Debug Level = 0, Debug Log = <none>]
Apr 4 10:56:12 zone-minder zmc_dvideo0[17275]: INF [Cam1: 2000 - Capturing at 8.93 fps]
Apr 4 10:57:12 zone-minder zmc_dvideo1[17872]: INF [cam2: 1000 - Capturing at 12.66 fps]
Apr 4 10:58:04 zone-minder zmc_dvideo0[17275]: INF [Cam1: 3000 - Capturing at 8.93 fps]
Apr 4 10:58:21 zone-minder zmdc[17253]: INF [Starting pending process, zmc -m 4]
Apr 4 10:58:21 zone-minder zmdc[17253]: INF ['zmc -m 4' starting at 08/04/04 10:58:21, pid = 18027]
Apr 4 10:58:21 zone-minder zmdc[18027]: INF ['zmc -m 4' started at 08/04/04 10:58:21]
Apr 4 10:58:21 zone-minder zmc_m4[18027]: INF [Debug Level = 0, Debug Log = <none>]
Apr 4 10:58:21 zone-minder zmc_m4[18027]: INF [Starting Capture]
Apr 4 10:58:32 zone-minder zmc_dvideo1[17872]: INF [cam2: 2000 - Capturing at 12.50 fps]

root@zone-minder:/tmp# zmu -d /dev/video0 -q -v
Error, failed to open video device /dev/video0: Device or resource busy
root@zone-minder:/tmp# zmu -d /dev/video1 -q -v
Error, failed to open video device /dev/video1: Device or resource busy
root@zone-minder:/tmp#

lsusb
sudo lsusb
Password:
Bus 004 Device 011: ID 046d:08a2 Logitech, Inc. Labtec WebCam Pro
Bus 004 Device 007: ID 046d:c50e Logitech, Inc. MX-1000 Cordless Mouse Receiver
Bus 004 Device 005: ID 0424:2507 Standard Microsystems Corp.
Bus 004 Device 001: ID 0000:0000
Bus 003 Device 001: ID 0000:0000
Bus 002 Device 002: ID 04fc:0561 Sunplus Technology Co., Ltd Flexcam 100
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 003: ID 05fe:1010 Chic Technology Corp.
Bus 001 Device 001: ID 0000:0000

you can but if i recall they need to be on seperate buss's

There is no limit in zm for this, it just sees the video feed from linux. If linux cant do it then neither can zm

Would seperate PCI cards = seperate buses.

I read a post on the forum about 20' of USB cable being the Max.
Can anyone verify this. Also how about USB repeater cables. I wonder if those will work?