QAudioDeviceInfo::availableDevices does not detect USB audio headset

JoeCFD

const auto & device_info_list = QAudioDeviceInfo::availableDevices(QAudio::AudioOutput);
int size = device_info_list.size(); ===> always = 0 when USB audio headset is plugged or unplugged.

lsusb -v is used to check if it is available on Linux.

SGaist

Hi,

What version of Qt are you using ?
How did you install it ?
What Linux distribution are you running ?
What device is that ?

JoeCFD

qt 5.5.1
Linux desktop 4.15.0-29-generic
16.04.1-Ubuntu
SENNHeiser headset

Can detect it with ALSA without any issues.

SGaist

How did you install that old version of Qt ? Is it the one provided by your distribution ?

Note that Qt 5.5.1 is a bit outdated. The current version is 5.12.3 with 5.13 that is coming.