Hi,
On 01-11-18 11:37, Dean Wallace wrote:
On 31-10-18, Pierre-Louis Bossart wrote:
Just thought it worth mentioning, this new patch that fixes sound
again, seems to have ressurected an old issue with PLL unlock. I'm
seeing journal entries after fresh boot ......
```
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard systemd[462]: Started Sound Service.
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
picard kernel: max98090_pll_work: 141 callbacks suppressed
picard kernel: max98090 i2c-193C9890:00: PLL unlocked
```
sound is ok, but sometimes plugging in headphones spams journal with
those PLL messages, and sound turns into "daleks", and I have to
remove/insert headphones few times or stop/start audio to fix it.
It's a very old issue, maybe you'd know more about it.
I noticed this error on my Orco device used for tests many moons ago, but I
could never find out what led to this error case, it wasn't deterministic
and didn't impact the audio quality. All I could do is rate_limit it... If
we have an A vs. B situation it'd be really helpful to diagnose further.
Is there really a causality between the changes from Hans and this PLL
unlock error? Are you 100% sure this was not present in the previous install
you used (4.18.14 as mentioned earlier in the thread)?
Thanks
-Pierre
Well, numerous boots, kernels, headphone inserting - no PLL or
'Daleks'. My laptop must have been haunted that day (halloween).
I'll put it to bed.
So you can no longer reproduce. Bummer. Note this might be caused by
the temperature of the laptop when you were running the tests...
Anyways if you hit this again and you can reproduce it, please
give adding a msleep(10) after code mucking with the clk a try.
Regards,
Hans
