Difference between revisions of "Grandtec Grand X Guard"
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These cards a relatively inexpensive by using one bt chip shared for all of the inputs. The upside is low cost, downside is performance. | |||
== X-Guard | * Using 1 source you get 25 fps | ||
* Using 2 source you get 5 fps each (10 fps total) | |||
* Using 4 sources you get 2.5 fps each (10 total) | |||
...and so on. | |||
if you use more than 1 source, total FPS is 10/12 | |||
Please note that this will only show up as one video input (''/dev/video0'' for me). You will use channels of the input to access the multiple ports. | |||
<span style="font-variant:small-caps">bttv supported card types</span> | |||
* 57 -> GrandTec 'Grand Video Capture' (Bt848) [4344:4142] | |||
* 77 -> GrandTec Multi Capture Card (Bt878) | |||
* 103 -> Grand X-Guard / Trust 814PCI [0304:0102] | |||
== GrandTec Grand X-Guard 4P== | |||
Autodetected correctly and confirmed working with bttv driver. | |||
== GrandTec Grand X-Guard 9P== | |||
Confirmed working under ZoneMinder 1.22 (probably earlier). bttv driver 0.9.17 incorrectly detects this as a card type 57. You need to edit modprobe.conf (see below), then do a rmmod bttv and modprobe bttv to get it to work correctly. | Confirmed working under ZoneMinder 1.22 (probably earlier). bttv driver 0.9.17 incorrectly detects this as a card type 57. You need to edit modprobe.conf (see below), then do a rmmod bttv and modprobe bttv to get it to work correctly. | ||
''/etc/modprobe.conf'' | |||
<pre> | <pre> | ||
options bttv card=103 | options bttv card=103 | ||
</pre> | </pre> | ||
I haven't had any problems testing with a single input but with each input added, the image gets brighter and more washed out. At 4 monitors, the image is no longer viewable with the default monitor brightness and contrast. | I haven't had any problems testing with a single input but with each input added, the image gets brighter and more washed out. At 4 monitors, the image is no longer viewable with the default monitor brightness and contrast. The current theory is that providing a live connection to each input will resolve the problem. | ||
== GrandTec Grand X-Guard 16P == | |||
Needs the same configurations changes as the 9P card above. | |||
Sources from | |||
[http://www.zoneminder.com/forums/viewtopic.php?p=4536&sid=071efc96ee14a2370e5d4f159aa2a685 davide post] | |||
[http://www.zoneminder.com/forums/viewtopic.php?t=3285 Another davide post] | |||
Revision as of 18:02, 13 July 2008
These cards a relatively inexpensive by using one bt chip shared for all of the inputs. The upside is low cost, downside is performance.
- Using 1 source you get 25 fps
- Using 2 source you get 5 fps each (10 fps total)
- Using 4 sources you get 2.5 fps each (10 total)
...and so on. if you use more than 1 source, total FPS is 10/12
Please note that this will only show up as one video input (/dev/video0 for me). You will use channels of the input to access the multiple ports.
bttv supported card types
- 57 -> GrandTec 'Grand Video Capture' (Bt848) [4344:4142]
- 77 -> GrandTec Multi Capture Card (Bt878)
- 103 -> Grand X-Guard / Trust 814PCI [0304:0102]
GrandTec Grand X-Guard 4P
Autodetected correctly and confirmed working with bttv driver.
GrandTec Grand X-Guard 9P
Confirmed working under ZoneMinder 1.22 (probably earlier). bttv driver 0.9.17 incorrectly detects this as a card type 57. You need to edit modprobe.conf (see below), then do a rmmod bttv and modprobe bttv to get it to work correctly.
/etc/modprobe.conf
options bttv card=103
I haven't had any problems testing with a single input but with each input added, the image gets brighter and more washed out. At 4 monitors, the image is no longer viewable with the default monitor brightness and contrast. The current theory is that providing a live connection to each input will resolve the problem.
GrandTec Grand X-Guard 16P
Needs the same configurations changes as the 9P card above.
Sources from davide post
