Balluff MATRIX VISION mvBlueNAOS, Technical Manual

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1.16.5.1 No GenICam devices are detected on a Linux system
Symptoms
After starting any mvIMPACT Acquire based application no GenICam compliant devices are accessible or detected
Cause
The environment variables which are necessary to us the mvGenTL Acquire package are defined by two shell scripts
which are set by profile.d. This causes the variables to be available within every login-shell run on the system.
Once an application is started from a non-login shell which is using mvIMPACT Acquire libraries the variables from
profile.d are not used. This results in a situation that the necessary runtime libraries can not be found which leads
to missing interfaces and devices.
Resolution
To avoid this situation there are two possible solutions:
• Use a login-shell to run the application using the MATRIX VISION driver package.
• Insert the variables from: /etc/profile.d/genicam.sh and /etc/profile.d/acquire.sh to a shell configuration file
which is read to configure environment variables.
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