Not getting an image and 0 fps

sleeper0110 · Post by **sleeper0110** » Mon Oct 23, 2006 8:29 pm

So I have zoneminder up and running, I'm pretty sure my media cards are being detected correctly and the bttv driver is being loaded. When I add a camera I get no picture (not even a blue screen) and it says 0.0 fps.

Also, when I add a camera I use the default 600 for "section length" yet I seem to be getting serveral events ever second.

I know my camera isn't the problem because when I hook it up to another zoneminder machine, it works just fine.

Any ideas?

Thanks.

jameswilson · Post by **jameswilson** » Mon Oct 23, 2006 9:07 pm

if your getting blue screens then your card hasnt been recognised

what distro what card what have you done to modprobe etc etc

Always ALWAYS on issues with cams use tvtime or xawtv.

sleeper0110 · Post by **sleeper0110** » Wed Oct 25, 2006 6:24 pm

Here is some more info:

OS: Fedora Core 5
Card: Brooktree Corporation Bt878 Video Capture
(That taken from lspci -v)
the bttv driver is automatically used, so I haven't done anything with modprobe.

I took your advice and installed tvtime.l The camera works great with tvtime, so I think the media card and camera should work with zm. I know the camera works with zm because I have tested it out on another zm system.

I'm thinking I have misconfigured something in zm.

And again, the symptoms are that when I add a camera, I don't get a picture, it says 0.0fps at the bottom of the "camera screen". But it seems
to be recording multiple events per second even though I have the section length specified as 600.

Any ideas or help would be really appreciated.

Thanks.

Post by **cordel** » Wed Oct 25, 2006 6:35 pm

Might be helpful if we knew how you configured the system and what you have to to troubleshoot.
http://www.zoneminder.com/wiki/index.ph ... e_Shooting

zmu -m 0 -q -v -- Returns various information regarding a monitor configuration.

Regards,
Corey

sleeper0110 · Post by **sleeper0110** » Wed Oct 25, 2006 8:39 pm

Here is the output of zmu -m 2 -q -v :

Monitor 2(cam1)
Id : 2
Name : cam1
Type : Local
Device : /dev/video0
Channel : 0
Format : 1
Width : 320
Height : 240
Palette : 4
Colours : 3
Event Prefix : Event-
Label Format : %%s - %y/%m/%d %H:%M:%S
Label Coord : 0,0
Image Buffer Count : 40
Warmup Count : 25
Pre Event Count : 10
Post Event Count : 10
Alarm Frame Count : 1
Section Length : 6000
Maximum FPS : 0.00
Alarm Maximum FPS : 0.00
Reference Blend %ge : 7
Track Motion : 0
Function: 4 - Continuous Record
Zones : 1
Id : 2
Label : All
Type: 1 - Active
Shape : 4 points
0: 0,0
1: 319,0
2: 319,239
3: 0,239
Alarm RGB : ff0000
Check Method: 3 - Blobs
Min Pixel Threshold : 25
Max Pixel Threshold : 0
Min Alarm Pixels : 2304
Max Alarm Pixels : 57600
Filter Box : 3,3
Min Filter Pixels : 2304
Max Filter Pixels : 57600
Min Blob Pixels : 1536
Max Blob Pixels : 0
Min Blobs : 1
Max Blobs : 0

Maybe I should mention I'm in authentication mode, if that helps (so I hade to use -U and -P in the zmu command above).

Anybody see anything obvious?

Thanks.

Post by **cordel** » Wed Oct 25, 2006 8:46 pm

What does dmesg say about your card? Did it load? As what?
Are there any related errors listed in any of the logs mentioned in FAQ?
Etc.

Regards,
Corey

tobiw · Post by **tobiw** » Fri Oct 27, 2006 6:42 pm

Hi,

I've got the same problem! I use a Haupauge PCI card with a BT848 chip. It works fine with xawtv, bot overlay and frame grabber mode are working.

All logs seemed to be ok, my installation is up-to-date gentoo with glibc 2.5

the only thing I can see in the log file /var/log/message is this
Oct 27 18:38:54 www2 zmwatch[6195]: INF ['zmc -d /dev/video0' started at 06/10/27 18:38:54]
Oct 27 18:39:04 www2 zmwatch[6195]: INF [Restarting capture daemon for Mon01, shared memory not v
alid]
Oct 27 18:39:05 www2 zmdc[8859]: INF ['zmc -d /dev/video0' started at 06/10/27 18:39:05]
Oct 27 18:39:05 www2 zmdc[6156]: INF ['zmc -d /dev/video0' starting at 06/10/27 18:39:05, pid = 8
859]
Oct 27 18:39:05 www2 zmc_dvideo0[8859]: INF [Debug Level = 0, Debug Log = <none>]
Oct 27 18:39:05 www2 zmwatch[6195]: INF ['zmc -d /dev/video0' started at 06/10/27 18:39:05]

anyone any ideas what to check ?

Tobias

tobiw · Post by **tobiw** » Thu Nov 02, 2006 5:19 pm

I found the reason, at least for my problem. I lowered the pixel resolution to 320x240. The manual says you should copy the values from zmu, but those settings didnt work!

Now all fine !

jameswilson · Post by **jameswilson** » Thu Nov 02, 2006 9:01 pm

they will but the shared mem issue is differnt, if you search on the error you have or see the faq it will tell you