1 High Definition Audio Device Draining battery in Modern Standby
Hey guys, been having this for a long time from my newly bought laptop. There's a huge battery drain (2-3% per hour) when I put my laptop to sleep (Modern Standby). After running Sleep Study I've found out that it's mainly due to High Definition Audio Device.
I've tried :
- Updating my Realtek Drivers
- Uninstalling Realtek and using generic drivers
- Looked up all over forums, but the problem others have is about "Audio stream is currently in use" - which isn't what I have encountered.
Here is my sleepstudy report attached, Any help please?
Update (06/09/2018)
Hi guys !
So I disabled my Realtek drivers.
Interestingly the fault still shows up as Audio device, but my device drain has been 0% for the past 9 hours!
Not sure if this is normal, I'll do another round of tests.
In the meantime- any ideas on what is going on here?
Cheers guys!
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Hi,
Just wondering if it is the cause. Just because it is on 100% of the time doesn't mean that it is draining much power. It doesn't mean that it is on at 100% of its power output.
Try disabling it in Device Manager and then putting the laptop into Modern Sleep mode and check what happens to the discharge rate.
Have you got the latest BIOS version installed? It mentions "Optimize system performance".
Also here's a link to the very latest Asus drivers. Try installing the drivers from here and see. Only install the Realtek ones at the moment as you don't want to confuse things by updating any others and then run into different problems perhaps.
Just some thoughts.
by jayeff
ah, let me give that a go and get back to you :)
Thanks for the link! Been looking for the latest Asus drivers.
My bios is the latest . Let's see what happens next
by khojordan
Hi,
It would appear that the audio is powered on all the time. Why it's draining so much power is the problem
Thought you might be interested in this link, regarding audio sub system power management for modern standby.
This is from the audio power management link in the page:
"A key requirement is that the codec itself remains powered at all times—even when it's in a low-power sleep mode—so that jack insertion and removal can be detected. The codec must generate an interrupt that can wake the SoC from its deepest idle state to handle headphone jack insertion and removal."
Apologies if you've seen it already.
by jayeff
Yeah I've seen it. I think i'll try disabling individual hardware components. Will start with microphone first. and then speakers next.
by khojordan
Hi,
Did you notice the Testing and Validation section of the 2nd link above (down right hand side of page) In it it says that you can download the WPA tool to check for correct operation between sleep and normal states.
Do you know anybody else with a similar model laptop? You may be trying to find a bug in the software for the audio
by jayeff
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