mbox series

[SRU,OEM-5.6,0/1] Fix headset jack detection on Dell UFF desktops

Message ID 20200928065203.5964-1-kai.heng.feng@canonical.com
Headers show
Series Fix headset jack detection on Dell UFF desktops | expand

Message

Kai-Heng Feng Sept. 28, 2020, 6:52 a.m. UTC 
BugLink: https://bugs.launchpad.net/bugs/1897508

[Impact]
Headset jack detection doesn't work on Dell UFF desktops. MSI interrupt
doesn't work anymore if the HDA device ever gets runtime-suspended.

[Fix]
Disable runtime suspend on HDA device.
This is a temporary workaround, we are still finding the root cause.

[Test]
With the patch applied, jack detection always works.

[Regression Potential]
This fix will not enable HDA runtime suspend by defualt, so for systems
that doesn't use TLP or `powertop --auto-tune`, this will slightly
increase power consumption.

Hui Wang (1):
  Revert "ALSA: hda: call runtime_allow() for all hda controllers"

 sound/pci/hda/hda_intel.c | 1 -
 1 file changed, 1 deletion(-)

Comments

Timo Aaltonen Oct. 6, 2020, 1:34 p.m. UTC | #1 
On 28.9.2020 9.52, Kai-Heng Feng wrote:
> BugLink: https://bugs.launchpad.net/bugs/1897508
> 
> [Impact]
> Headset jack detection doesn't work on Dell UFF desktops. MSI interrupt
> doesn't work anymore if the HDA device ever gets runtime-suspended.
> 
> [Fix]
> Disable runtime suspend on HDA device.
> This is a temporary workaround, we are still finding the root cause.
> 
> [Test]
> With the patch applied, jack detection always works.
> 
> [Regression Potential]
> This fix will not enable HDA runtime suspend by defualt, so for systems
> that doesn't use TLP or `powertop --auto-tune`, this will slightly
> increase power consumption.
> 
> Hui Wang (1):
>    Revert "ALSA: hda: call runtime_allow() for all hda controllers"
> 
>   sound/pci/hda/hda_intel.c | 1 -
>   1 file changed, 1 deletion(-)
> 

applied to oem-5.6, thanks