> Can you please run `watch -n0 cat /proc/interrupts` and check whether
"i2c_designware" or "SYNA8009:00" number is increasing without touching
the touchpad?
Tried this now, and yes, both of these ("idma64.0, i2c_designware.0" and
"SYNA8009:00") are increasing while not using the touchpad at all after
resuming from suspend. Right after a reboot these values remain stable
and do not increase while not using it.
> We have an internal bug tracking this and were working with the touchpad
> vendor but strong recommendation is to use Modern Standby/S0ix suspend
> support.
>
> Are you sure you're seeing worse battery time with S0ix? Recommendation from
> Intel is that it is the same as or better than S3 and on these Tigerlake
> CPU's is what Intel are recommending for use.
Awesome!
I only gave the modern standby/sleep a couple of chances in the
beginning, and at that point the laptop battery was drained by the next
morning if I closed the lid on it after work (around 5-6 pm the evening
before). Bear in mind that that was with the stock kernel that came with
Pop 21.04, which is 5.11.0. I can give it a try again now that I am
running 5.13.9, if a lot has changed regarding that since then.
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https://bugs.launchpad.net/bugs/1938096
Title:
[Lenovo X1 Carbon 9th] [SYNA8009:00 06CB:CE57] touchpad lagging after
resume from suspend
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