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18 Posts

07-30-2021

Spain

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  • Message 21 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-11, 10:48 AM

I suspended my p14s gen1 in the evening with 70% of the battery, and this morning, I had 30% left when I opened it again in a cafe without plugs. Last bios available on fwupd, 1.34, last kernel 5.14.1, using linux suspend (S3).

Given this is what Lenovo considers acceptable, I will be asking for a full refund, and will buy something else. I encourage everyone else to do the same thing, and link them this thread as proof if needed.

S0ix support is still quite bad, there's a small improvement in power usage, but closing the lid while suspended wakes the laptop, and it does not go back to suspended mode unless you open and close again. Furthermore it's really slow leaving suspension... so it is not really ready for customer use.

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407 Posts

03-06-2021

Germany

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  • Message 22 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-11, 12:37 PM

@ jixbo wrote:

....
S0ix support is still quite bad, there's a small improvement in power usage, but closing the lid while suspended wakes the laptop, and it does not go back to suspended mode unless you open and close again. Furthermore it's really slow leaving suspension... so it is not really ready for customer use.

 

No, it isn't. Literally, it cuts the drain in half on P14s machines. 

You have to look in the killed thread about what you need for that, or post in the split thread about not here.

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83 Posts

04-17-2021

Greece

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  • Message 23 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-12, 14:20 PM

Linux 5.14,  FW 1.35 0,75 W/h. It used to be close to 2 W/h.

 

With S0ix it is 0,44 W/h with a significant time delay when waking.

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83 Posts

04-17-2021

Greece

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  • Message 24 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-12, 14:23 PM

@ jixbo wrote:



Given this is what Lenovo considers acceptable, I will be asking for a full refund, and will buy something else. I encourage everyone else to do the same thing, and link them this thread as proof if needed.

 

If you are eligible for a full refund, go for it and forget thinkpads. It is the best you can do.

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18 Posts

07-30-2021

Spain

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  • Message 25 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-12, 16:44 PM

I know it improves battery drain, as I said in my comment. But I have suspended (s0ix) my laptop via UI, then closed the lid, put the laptop in my bag, to found it dead a few hours later... because it woke up when I closed the lid. That alone makes it not ready.

If people have to read a 90 pages thread to get a decent battery drain on s0ix, disabling features they might want in the bios... clearly isn't ready.

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59 Posts

01-27-2021

Netherlands

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  • Message 26 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-12, 19:16 PM

@ jixbo wrote:

I know it improves battery drain, as I said in my comment. But I have suspended (s0ix) my laptop […]

Please take this to the other thread and here only discuss S3 drain, thanks.

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59 Posts

03-29-2021

Germany

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  • Message 27 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-16, 15:32 PM

Short summary of my S3 observations with the following system: ThinkPad T14 Gen 1, R1BET66W(1.35 )

- the drain rate is much more stable and does not jump all over the place between successive standby periods anymore with a mean of ~0.45 W

- it decreased for short standby durations

- it increased for long standby durations by ~0.5 W

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778 Posts

07-22-2019

Canada

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  • Message 28 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-16, 18:14 PM

I'm pretty sure this doesn't apply to any of the above...but just in case anybody is measuring power draw (with the power supply connected) instead of battery drain.


One of my team members has been doing some testing with some extra equipment our team now has. He found that with the newer power supplies, once they get hot then the power draw increases - it's power supply related and nothing to do with the system under test.

 

Just thought I'd mention it as the change is ~0.5W and it could potentially skew results. If you're not using a power supply/meter during the tests please ignore.

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59 Posts

01-27-2021

Netherlands

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  • Message 29 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-16, 20:02 PM

@MarkRHPearson : Will you have the opportunity to reply to my earlier post about S3 P_sleep?

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51 Posts

01-21-2018

United Kingdom of Great Britain and Northern Ireland

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  • Message 30 of 48

Re:T14, T14s & X13 G1 AMD Linux - S3 standby battery drain improvements

2021-09-18, 23:54 PM

Just going around in circles now. It was already noted in the previous locked thread, by myself and many others, that e-cert is just a smokescreen to cover up the issue.

E-cert is NOTHING to do with how well a laptop functions or the user experience, and it makes absolutely no sense to even mention it. E-cert is about overall total energy use and environmental impact. Who is complaining about their energy bills or the environment?? Maybe that should go in a separate thread too..

 

The issue in hand is certain ThinkPad models have significantly higher sleep drain than other similar ThinkPad models (including the Gen 2 of the P14s) causing batteries to completely drain in a matter of a couple days. That is a poor user experience, and not typical of any laptop let alone high end business grade.

 

If Lenovo have no intention of fixing this issue (which it seems pretty blatant to everyone now), just say so. At least then we can stop wasting our time and holding onto these laptops out of hope. We can just sell the laptops to people who only want to use Windows with S0 and get something different that actually supports Linux..

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