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31 Posts

12-06-2018

India

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-18, 14:27 PM

I am now running Ubuntu 18.04 on 330-15arr, how to load custom dsdt in Linux?

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31 Posts

12-06-2018

India

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-18, 15:55 PM

Yes, since the dsdt is unsigned.

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27 Posts

11-30-2018

United Kingdom of Great Britain and Northern Ireland

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-18, 16:16 PM
Thanks, I have no idea what that means. How do I get a dsdt that is signed?
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24 Posts

11-19-2018

Russian Federation

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-19, 5:38 AM
Sample guide here:
https://www.kernel.org/doc/Documentation/acpi/initrd_table_override.txt

Or here:
https://wiki.archlinux.org/index.php/DSDT#Using_modified_code

But I am fine with current dsdt. Use oibaf's PPA for mesa drivers with 4.19.8+ kernel and you will get 2 times performance compared to windows. Standard ones (amdgpu and kernel) just give boost of 30-40%
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4 Posts

11-21-2016

India

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-20, 16:09 PM

Is it possible for anyone to make 30watts file dsdt.aml ?. If you can that would be awesome !

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36 Posts

10-21-2018

India

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-22, 10:38 AM
anyone tried the new bios update?
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27 Posts

11-30-2018

United Kingdom of Great Britain and Northern Ireland

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-22, 11:51 AM

I haven't yet because I'm on a 330S and there isn't a new update for it yet. However, reading the notes for the new 330 BIOS they don't seem to mention anything about thermals or power management that would suggest they're fixing the thermal throttling issue.

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2 Posts

11-24-2018

Hungary

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-22, 16:20 PM
Yes. The problem not solved! After 3 minit set 1,6Ghz...
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27 Posts

11-30-2018

United Kingdom of Great Britain and Northern Ireland

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-22, 17:09 PM
By the way if anyone has a 330S DSDT.aml that's modified for 25w could they please upload it? I've spent hours and hours trying to figure this out and still haven't gotten it to work.
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31 Posts

12-06-2018

India

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Re: Ideapad 330 Ryzen 5 2500u underperforming

2018-12-25, 3:12 AM

The best alternative would be to install linux, and do some tinkering, I have IdeaPad 330-15arr and in Windows 10 it could not go above 3GHz in single core operations.

See geekbench score (the cpu ran at 3.59GHz when single core, and 3.26GHz on multi core test also no drop in performance second time). Geekbench score

Now geekbench score with background tasks such as browsing and libre office open etc. Geekbench score with background tasks.

 

 

However there are issues with drivers as ryzen mobile drivers are not made open source and startup will throw some errors but amd open source RAVEN drivers works fine (better than lenovo proprietary drivers) you need to first run Ubuntu in nomodeset then edit grub config file in /etc/default/grub according to your graphic card to get hardware acceleration working.

 

 

EDIT: I am getting more juice out of the processor when in performance governer active, slight improvement in multi core performance also screen on time is better than win 10 (2.5 hrs) getting about 4hrs when only 2 cores active and clocked to 1.6 GHz.

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