[alsa-devel] Can not rmmod snd_hda_codec_hdmi

[Anssi Hannula]

24.12.2014, 11:49, Xuebing Wang kirjoitti:
> On Tue, 2014-12-23 at 17:21 +0100, Clemens Ladisch wrote:
>> Xuebing Wang wrote:
>>> rmmod: ERROR: Module snd_hda_codec_hdmi is in use
>>
>> rmmod snd-hda-intel first.
>>
> Clemens, thanks for your help.
> 
> I am using Fedora 21 (Ubuntu 14.04.1 has the same problem).
> 
> 'rmmod snd-hda-intel' shows this module is in use too. 
> 
> 'modinfo snd-hda-intel', nor file /lib/modules/.../modules.dep shows that any kernel modules depends
> on snd-hda-intel or snd_hda_codec_hdmi.
> 
> Is it possible that a kernel thread is using these 2 modules?
> 
> Any ideas? Thanks.

Run this to see if some userspace process is using the ALSA devices:
fuser -v /dev/snd/*

-- 
Anssi Hannula