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Old 01-31-2009, 01:06 AM   #1
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Registered: Jan 2009
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Motion help please (Motion only supports mmap) ??

Hi I'm trying to get Motion to work with my Webcam and hope someone can help.

I'm using Ububntu 8.10 with a webcam Logitech Quickcam Chat.

I have used EasyCam to install the driver and tested it with Cheese Webcam Booth.

I then Installed Motion through Synaptic.

When I try to start Motion I get the below.

[0] Processing thread 0 - config file /etc/motion/motion.conf
[0] Motion 3.2.9 Started
[0] Thread 1 is from /etc/motion/motion.conf
[1] Thread 1 started
[1] cap.driver: "ivtv"
[1] cap.card: "Hauppauge WinTV PVR-150"
[1] cap.bus_info: "0000:02:09.0"
[1] cap.capabilities=0x01070051
[1] - TUNER
[1] - AUDIO
[0] motion-httpd/3.2.9 running, accepting connections
[0] motion-httpd: waiting for data on port TCP 8080
[1] Supported palettes:
[1] 0: HM12 (HM12 (YUV 4:2:0))
[1] 1: MPEG (MPEG)
[1] Unable to find a compatible palette format.
[1] ioctl(VIDIOCGMBUF) - Error device does not support memory map
[1] V4L capturing using read is deprecated!
[1] Motion only supports mmap.
[1] Capture error calling vid_start
[1] Thread finishing...

Could someone help me to sort this out with Motion if not is there another motion detector I could use.

Thanks in advance

Old 08-02-2010, 12:29 AM   #2
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Registered: Mar 2009
Distribution: Archlinux
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Fixes the error

Found this on another site. Try preloading

LD_PRELOAD=/usr/lib/libv4l/ motion -n

I'm posting here because this page came up on top of the google search I did...
Old 08-02-2010, 12:04 PM   #3
Registered: Jan 2010
Posts: 120

Rep: Reputation: 23
motion runs all the time
you wont be able to start any thing to do with the cam till you turn it off
wxcam has motion i think its a nice program

read and install all the page tell you to

hope that helps
Old 09-15-2011, 12:10 AM   #4
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Registered: Sep 2011
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Originally Posted by MorderVomUbel View Post
Found this on another site. Try preloading

LD_PRELOAD=/usr/lib/libv4l/ motion -n

I'm posting here because this page came up on top of the google search I did...
Thank you, this solved my problem with motion!
Old 09-06-2012, 12:25 PM   #5
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Registered: Sep 2012
Location: Orebro, Sweden
Distribution: Debian 7
Posts: 6

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Sorry to bump this old thread, but i have the exact same error with 1 of my webcams.
Where am i supposed to add the line "LD_PRELOAD=/usr/lib/libv4l/ motion -n"?

I'm running Debian.

Thanks in advance...

Last edited by Guldstrand; 09-06-2012 at 12:25 PM. Reason: spelling


motion, webcam

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