# Unable to open line scanner from configured devices in GeniCam Browser

**URL:** <https://forum.commonvisionblox.com/t/unable-to-open-line-scanner-from-configured-devices-in-genicam-browser/1658>\
**Category:** General Questions\
**Tags:** acquisition, linescan, filterdriver, genicam, gigevision\
**Created:** [March 22, 2022, 3:59pm UTC](https://forum.commonvisionblox.com/t/unable-to-open-line-scanner-from-configured-devices-in-genicam-browser/1658 "2022-03-22T15:59:11Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Chris](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.commonvisionblox.com/chris/32/1154_2.png) [@Chris](https://forum.commonvisionblox.com/u/Chris)\
**Post date:** [March 23, 2022, 6:44am UTC](https://forum.commonvisionblox.com/t/unable-to-open-line-scanner-from-configured-devices-in-genicam-browser/1658/2 "2022-03-23T06:44:35Z")

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Hi @keerthitheja ,

to discover your cameras please have a look at this example:  
[https://forum.commonvisionblox.com/t/api-device-discovery-with-allow-broadcast-acknowledge-ignore-subnet/1260/3](https://forum.commonvisionblox.com/t/api-device-discovery-with-allow-broadcast-acknowledge-ignore-subnet/1260/3)

Also here is some more information:  
[https://forum.commonvisionblox.com/t/discovering-loading-and-configuring-a-camera/951](https://forum.commonvisionblox.com/t/discovering-loading-and-configuring-a-camera/951)

Basically, you want to move all devices you want to work with to the configured devices tab and then save the configuration (Both cameras green on the right side).  
This however means you have to open the GenICam Browser and configure your camera everytime you change on of them.

The way with using the discover interface that is mentioend in the linked posts also allows you to simply change the cameras in your system without the need of much configuration.

Cheers  
Chris

Edit: You should also have all applications closed that work with the cameras otherwise they will appear red as well.

I assume you are on linux as you dont have a filter driver, make sure to remove any “IgnoreGevSD” tags when discovering. On windows we want to work on the filterdriver, this however does not apply for linux systems of course.

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