Hello,

I've remarked that the speakers of the laptop are doing a small noise when
I do not listen music.
If I mute the speaker (mixerctl outputs.master.mute) this little noise
disappear.

I thought this was an Hardware issue. So, I've re-installed the orignial
disk I've received with the machine (which runs windows 10).
But when I run Windows, then there is no strange noise at all from the
speakers. Even when they are idle.
So, I don't think this noise in the speakers is an hardware issue.

So, it seems that azalia is generating some troubles. No ?

An another element ...
This strange noise is not in the headphone when I plug them.

No idea is this is related to the interrups problem.


rgds





whitout headphone
-----------------------

outputs.spkr_source=mix2
outputs.spkr_mute=off
outputs.spkr_eapd=on
outputs.hp_source=mix3
outputs.hp_mute=off
outputs.hp_boost=off
outputs.hp_eapd=on
outputs.line_source=mix2
outputs.line_mute=off
outputs.line_boost=off
outputs.line_eapd=on
outputs.hp_sense=unplugged
outputs.line_sense=unplugged
outputs.mic2_sense=unplugged
outputs.spkr_muters=hp,line
outputs.master=204,204
outputs.master.mute=off
outputs.master.slaves=dac-2:3,dac-0:1,spkr,hp,line


With headphone
---------------------

e5450:~$ mixerctl | grep outputs
outputs.spkr_source=mix2
outputs.spkr_mute=on
outputs.spkr_eapd=on
outputs.hp_source=mix3
outputs.hp_mute=off
outputs.hp_boost=off
outputs.hp_eapd=on
outputs.line_source=mix2
outputs.line_mute=off
outputs.line_boost=off
outputs.line_eapd=on
outputs.hp_sense=plugged
outputs.line_sense=unplugged
outputs.mic2_sense=unplugged
outputs.spkr_muters=hp,line
outputs.master=204,204
outputs.master.mute=off
outputs.master.slaves=dac-2:3,dac-0:1,spkr,hp,line




On Thu, Mar 1, 2018 at 6:53 PM, vincent delft <vincent.de...@gmail.com>
wrote:

> Hello Philip,
>
> After few minutes up, the vmstat result are the following:
> both executed within few seconds interval.
>
>
> vmstat -i
> ------------
> interrupt                       total     rate
> irq0/clock                      48183      388
> irq0/ipi                          197        1
> irq144/acpi0                       27        0
> irq145/inteldrm0                 7419       59
> irq96/xhci0                     67761      546
> irq114/em0                         90        0
> irq176/azalia1                      1        0
> irq115/iwm0                        13        0
> irq101/ehci0                      107        0
> irq102/ahci0                       24        0
> irq146/pckbc0                     204        1
> Total                          124026     1000
>
>
> vmstat -s
> ------------
>        4096 bytes per page
>     2002400 pages managed
>     1900813 pages free
>        5333 pages active
>        9210 pages inactive
>           0 pages being paged out
>          49 pages wired
>      237608 pages zeroed
>           4 pages reserved for pagedaemon
>           6 pages reserved for kernel
>           0 swap pages
>           0 swap pages in use
>           0 total anon's in system
>           0 free anon's
>      193397 page faults
>      191678 traps
>    19272320 interrupts
>       52590 cpu context switches
>         321 fpu context switches
>       81438 software interrupts
>      399151 syscalls
>           0 pagein operations
>         407 forks
>          25 forks where vmspace is shared
>          22 kernel map entries
>      165624 zeroed page hits
>        2245 zeroed page misses
>           0 number of times the pagedaemon woke up
>           0 revolutions of the clock hand
>           0 pages freed by pagedaemon
>           0 pages scanned by pagedaemon
>           0 pages reactivated by pagedaemon
>           0 busy pages found by pagedaemon
>       30862 total name lookups
>             cache hits (68% pos + 2% neg) system 0% per-directory
>             deletions 5%, falsehits 0%, toolong 0%
>           0 select collisions
>
>
>
>
>
> On Thu, Mar 1, 2018 at 9:46 AM, Philip Guenther <guent...@gmail.com>
> wrote:
>
>> On Thu, Mar 1, 2018 at 12:37 AM, vincent delft <vincent.de...@gmail.com>
>> wrote:
>>
>>> If I do a “boot –c” and “disable acpimadt” the machine does no more do
>>> lot
>>> of interrupts.
>>>
>>> But I miss lot of hardwares (2 cpu instead of 4, no mouse, …)
>>>
>>>
>>>
>>> Otherwise, I’ve tried to remove lot of CPU performance parameters in the
>>> Bios settings, but this has no effects.
>>>
>>>
>>>
>>> I’ve tried to disable HW elements like wifi, bluethoot, … But this has no
>>> effect on the number of interrupts.
>>>
>>
>> After a cold boot with acpimadt *enabled*, what's the output of "vmstat
>> -i" ?
>>
>>
>> Philip Guenther
>>
>> (You don't need to quote your previous message; there are list archives
>> and it just makes it more annoying to reply.)
>>
>>
>

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