alsa-project/alsa-ucm-conf issue #99 was edited from hzhuang1:

In v1.2.2, the content of HDA-Intel.conf is in below. v1.2.2 is widely used, such as in ubuntu 20.04.

``` Syntax 3

Define.Use "" # a non-empty string to use UCM configuration for HDA devices

Define.AcpCardId "$${CardIdByName:acp}" ``` With this content, pulseaudio can't load configuration from UCM. Then I tried to edit the content. Change it to ``` Define.Use "2" ``` or ``` Define.Use "3" ``` Pulseaudio worked with "options snd-hda-intel probe_mask=1" on DELL laptop.

My question is what's the real meaning of **Define.Use** at here. Why the default value of **Define.Use** is empty string? Even in latest code, the **Define.Use** is also an empty string.

Issue URL : https://github.com/alsa-project/alsa-ucm-conf/issues/99 Repository URL: https://github.com/alsa-project/alsa-ucm-conf