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QLC+ 5.0.0 can't find DMX USB of ftdi in inputs/outputs
Posted: Tue Jan 05, 2021 2:10 pm
by davidtsai
Dear all:
I had QLC+ 4.12 work fine(universe 1 and universe 2 for DMX USB) in Fedora 33 ,But I had some problem for plugin of DMX USB when I want to try QLC+ 5.0.0 in Fedora ,I can't find DMX USB of ftdi for universe 1 and universe 2 in QLC+ 5 ,do I miss some file configuration in QLC+ 5.0.0?
Re: QLC+ 5.0.0 can't find DMX USB of ftdi in inputs/outputs
Posted: Wed Jan 06, 2021 9:15 am
by GGGss
It helps if you would provide make and model of your DMX interface...
Re: QLC+ 5.0.0 can't find DMX USB of ftdi in inputs/outputs
Posted: Fri Jan 08, 2021 12:21 pm
by davidtsai
thanks for your hlep, My FTDI chip come from Future Technology Devices International Ltd ,I attach my QLC+ 4.12 DMX USB Device (FT232R USB UART) as picture file ,
I can see DMX USB Device work well in QLC+4.12 ,but can't find anything for DMX USB Device. please help me to make DMX USB Device work again.thanks
Re: QLC+ 5.0.0 can't find DMX USB of ftdi in inputs/outputs
Posted: Tue Nov 02, 2021 12:11 am
by dawu
Hi there!
I just ran into the same issue (Linux Mint 20.1). My FTDI USB-DMX inteface is recognized by QLC 4 without problems, but QLC 5 hasn't shown it.
I found the following message while starting QLC:
Code: Select all
void IOPluginCache::load(const QDir&) "libdmxusb.so" doesn't contain an I/O plugin: "Cannot load library /tmp/.mount_QLC+_5I7AMcH/lib/qt5/plugins/qlcplus/libdmxusb.so: (libftdi1.so.2: Kann die Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden)"
After installing the package
libftdi1-2 (
libftdi1 was already installed, probably with the installation of QLC 4 as a DEB package), the message disappeared.
Maybe this would be notable in the future documentation QLC 5.
Regards
dawu