Re: Sound issues on ThinkPad X220T (Lenovo)

[deloptes <deloptes@gmail.com>]

riveravaldez wrote:

> On 4/12/20, riveravaldez <riveravaldezmail@gmail.com> wrote:
>> On 4/12/20, Andrei POPESCU <andreimpopescu@gmail.com> wrote:
>>> On Sb, 11 apr 20, 21:02:39, riveravaldez wrote:
>>>>
>>>> Strangely, 'speaker-test -c2' doesn't produce a sound. But 'sudo
>>>> speaker-test -c2' works flawlessly. (The idea to check that came from
>>>> [1].)
>>>
>>> Some program might be blocking the sound card, check also the output of
>>> 'lsof | grep /dev/snd' (as root).
>>>
>>> Kind regards,
>>> Andrei
>>
>> Thanks a lot for your answer and help, Andrei.
>> I've got these:
>>
>> $ sudo lsof | grep /dev/snd/
>> timidity   644                        timidity  mem       CHR
>>     116,2                13463 /dev/snd/pcmC0D0p
>> timidity   644                        timidity    3r      CHR
>>    116,33       0t0      12547 /dev/snd/timer
>> timidity   644                        timidity    4u      CHR
>>     116,2       0t0      13463 /dev/snd/pcmC0D0p
>> timidity   644                        timidity    5u      CHR
>>     116,9       0t0      13479 /dev/snd/controlC0
>> timidity   644                        timidity    6u      CHR
>>     116,1       0t0      12548 /dev/snd/seq
>> alsamixer 2150                        thinkpad    3u      CHR
>>     116,9       0t0      13479 /dev/snd/controlC0
>>
>> Maybe a timidity configuration issue?
> 
> Oh, mother-bugger... Problem - practically - solved.
> 

IT is known issue with timidity. I did not know that sound can be played via
root account though. We learned a bit more.