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26 Posts

10-10-2020

Belgium

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 19:45 PM

@ t14g1amd wrote:

The T14 battery capacity is 50000 mwh. With a 1700 mwh "expected" drain that' 29 hours of sleep. This piece of garbage won' sleep through a weekend.

 

Well, it doesn't, and that's the problem since the beginning of this thread.

 

And like I felt before, they don't really care because it passes the energy cert. 

Which is crazy, because at the end I don't really care about these numbers, I care about the usability, and for now I almost cannot use the laptop unplugged.

 

So you have dozens of users complaining about this issue, and the only answer we get is that it's in the acceptable limits and it was certified.

And that they still don't have a clear idea of where the problem is.

 

Thanks Lenovo.

 

But let me reiterate my suggestion of trying to help.

Maybe they can give us a clear way to take the measurements by ourselves so we can contribute and compare "like-with-like" ?

Maybe they can ask a user of this forum to send his laptop to verify ?

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83 Posts

04-17-2021

Greece

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 20:01 PM

Maybe we should send email to help@rossmanngroup.com asking him for a video for the way lenovo treats top of the line models.

 

https://www.youtube.com/user/rossmanngroup

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1 Posts

06-24-2021

Austria

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 20:21 PM

Just to chime in and provide some info from the other side: On my AMD X13 this is not just happening with S3 but also using S0ix on Windows. While power drain of individual devices looks excellent on paper (powercfg /sleepstudy is a command I'd wish would exist for Linux), total drain during S0ix is > 1% per hour, which is unacceptable (and Windows appropriately displays these values in red).

 

My old X220 with a terribly damaged battery is more reliable than this. S3 is even worse, no difference between Windows and Linux. So S0ix on Linux would likely improve the situation only marginally. I've extensively tested S0ix modes of other manufacturers before and usually any errors come down to individual devices not playing along with the idea of modern standby. With the X13 the problem seems to be hidden somewhere in firmware.

 

I've opened the first ticket with support about this back in August, my current ticket has been in progress for over two months now. While support has been friendly, changing individual components did not help at all. I've provided support with extensive logs. My machine has now purely existed for debugging purposes the past few months since it's far from mobile, let alone ultra-mobile. Needless to stay, having your computer connected to mains overnight is a great way to wear down a battery as well.

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16 Posts

02-23-2021

Ukraine

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 20:27 PM

This is within the energy cert allowance so the system now passes which is good news 

@MarkRHPearson , are you serious or just trying to be funny?

If you are serious, then I'm willing to bet, nobody here cares about your certification.

If you are trying to be funny, then I'm willing to bet, not many here would appreciate your sense of humor. I certainly do not (after losing weeks of work due to faulty firmware you released, which anyway does not fix the issue).

All in all, this is an extremely unfortunate response to all the users waiting for a year by now for Lenovo to fix their product.

 

The energy consumption of sleep mode is 1.7W for Ubuntu (vs 1.26W for Windows)

This means, that Lenovo has all the numbers, and they indeed know how terrible these laptops are, but they still decide to ignore all the complaints. And with this you bragging about energy certification looks like a big f.ck you to all the loyal (not anymore I guess) customers.

 

 

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8 Posts

06-22-2021

Germany

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 20:51 PM

As Example:

 

According to the review of notebookcheck.net the HP EliteBook x360 1040 G7, i7-10810U consumes 1.6W in minimum idle, which is defined by notebookcheck.net as:  

 

"power consumption while the notebook is idle.
Minimum: all additional modules are off (Wi-Fi, Bluetooth, etc.), minimum brightness, and Windows power plan is set to "Energy Saving"."

 

So @MarkRHPearson the Lenovo T14s consumes in S3-sleep more than another laptop which is running in idle and switched-on display? In my opinion thats not acceptable....

 

The HP comsumes in standby (not defined) 0.44W

 

Source: https://www.notebookcheck.net/HP-EliteBook-x360-1040-G7-Review-A-Spectre-For-Professionals.526816.0.html

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83 Posts

04-17-2021

Greece

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 21:01 PM

There is no way for those numbers to br correct. They are doing something terribly wrong. Communication issues? Complete lack of fundamental knowledge?

 

In case those numbers are correct... It should NOT in any case be left on a laptop carrying bag when in sleep mode.

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35 Posts

01-23-2021

Argentina

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 21:31 PM

@ alexkal wrote:

Maybe we should send email to help@rossmanngroup.com asking him for a video for the way lenovo treats top of the line models.

 

https://www.youtube.com/user/rossmanngroup

 

I'd already sent them a mail, but they usually work with Macs. Maybe if we all here send them a mail we'll make some noise.

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83 Posts

04-17-2021

Greece

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 21:37 PM

He had an episode saying how good Lenovo is with their support and customers.

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15 Posts

06-22-2021

Germany

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 22:12 PM

The numbers mark posted are loughable. I bought an expensive t14s lenovo machine because i wanted a high quality laptop with linux support that is fine and lasts for 8 years.

 

I  think this is unacceptable. i noticed the problem immediately after buying it but i didnt send the laptop back because of the promised bios update that would fix everything and i trusted in the lenovo brand. As we all know by now this didnt happen.

 

So now i spent 1.7k euros on a laptop that is 24x worse than a 7 year old macbook and cannot get a refund? Really wow.

 

Im done with lenovo.

 

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389 Posts

03-06-2021

Germany

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Re:T14 AMD battery drain in standby (Linux)

2021-06-24, 23:04 PM

@ MarkRHPearson wrote:

This is weird - I wrote an update for this yesterday, but it doesn' seem to have appeared. Apologies if this is brief...writing things twice means you' getting the summary version.

 

The testing results are back. I know you guys are dissing the methodology but this are the industry standard of measuring and it let' us compare like-with-like.

 

The energy consumption of sleep mode is 1.7W for Ubuntu (vs 1.26W for Windows)

 

Mark, this is pure BS, I'm sorry. It will pass that e-cert with 2.49W/h consumption since is below their target.

 

There isn't an industry standard for sleep modes *consummation*,  there is a standard on how to measure yes, so please stop this nonsense, OK?

Care to study the e-cert formulas?

 

Also can you please stop talking about e-cert, since this has ZERO to do with this problem?

I don't care if the laptop use X KW a year, and passes the crap when it burns in sleep mode.

 

Whatever it passes the overall result, 'S3' 1.7W/h and S0ix 1.26W/h ( with a theoretical 2.49W/h to still pass e-crap ) 

it not only a joke for any laptop is potentially dangerous. 

 

 

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