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Philips SPC900NC this time dark video

Posted: Thu Feb 21, 2008 6:46 pm
by robsmiler
Because of the trouble on my regular box I did set up another machine. Again Kubuntu 7.10 like the other machine.

As before I used SPC900NC (full story here: http://www.zoneminder.com/forums/viewtopic.php?t=10958). Camorama is working fine with it, xawtv, either.

ZoneMinder is working so far. The cam is signaled green when switching to modect.

When opening monitor window I see the time on the left upper edge, seconds counting and some schemes but all is nearly black. Using xawtv shows normal colors and brightness, though.

After some research I found, that Monitor Settings Brightness and contrast are set to 0, Hue contains 65535 and Color 32768. None of the values can be modified. So I looked into zm tables:

Code: Select all

mysql> select Brightness,Contrast,Hue from Monitors;
+------------+----------+-------+
| Brightness | Contrast | Hue   |
+------------+----------+-------+
|         90 |       45 | 65535 |
+------------+----------+-------+
1 row in set (0.00 sec)
Camorama shows for brightness 126, color 128, hue 255 and whitebalance 248.

Anyone having an idea what I did misconfigure or what values need to be set in zm.Monitors to get signal input fixed?

rob*

Posted: Fri Feb 22, 2008 9:05 am
by robsmiler
Found the solution myself:

Code: Select all

$ mysql -u root -p zm
mysql> update Monitors set Brightness=-1, Contrast=-1, Hue=-1, Colour=-1 where id=2;
This obviously activates automatic control mode for relevant parameters in webcam. Why this has been switched off - don't ask me!

rob*

Posted: Fri Feb 22, 2008 9:43 am
by cordel
Glad you got it figured out.
Might be worth posting it in the wiki for this cam.
Actualy never mind, I put it in the wiki in our HCL.

Posted: Sat Jan 08, 2011 6:53 am
by samlauncher
Appreciated info, its good to know..