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01-03-2019

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-07, 23:16 PM

Hi All,

 

For those of us who have replaced the wifi and bluetooth card with an intel 9260 and are having issues with linux.

I raised a case with intel and here are there findings i'd like to share with the community.

 

intels response:

Here is a summary of the engineering actions, results of our efforts, and recommended next steps:

  • We were able to track down the same system and reproduce the issue
  • We were able to successfully enable our BT device in the system after boot up, which points to something in system boot/power sequence preventing BT from enabling
  • The RTK 3rd party module exhibited the same behavior as our Intel module, which points to a system level setting that doesn’t allow for any device to be used other than what ships with the platform (Qualcomm card) – thought to be likely due to BIOS or Linux Kernel rule setting
  • We checked with Lenovo as they used to have a BIOS setting that wouldn’t allow another adapter to work (called mutual authentication), but this was removed a few years ago

Unfortunately we cannot debug any further on this as we do not have access to the proprietary code needed to do further debug. Our best recommendation is to take the engineering debug analysis we have been able to provide above and contact Lenovo to determine if they will conduct further testing to determine the boot/power up setting that is preventing the BT from being enabled. Please be aware that our card was never validated on this platform since it’s not an approved platform combination from Lenovo, and so they may not see this issue as one that needs to be resolved.
 
I wish we could have found a definitive answer for you, but hopefully the information we have been able to provide gets you a few steps closer to resolving the issue.

 

Cheers

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20 Posts

08-31-2018

US

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 1:03 AM

Thanks a lot for the info. I'm honestly a little blown away how much work Intel did to investigate this.

 

I think Lenovo fixed the same problem on the A485, check the BIOS notes for 1.06 here https://download.lenovo.com/pccbbs/mobiles/r0wuj43w.txt

 

The A485, E485, and E585 all had the same issue at launch, the A485 is the only one that officially supports linux, and it's the only one that got a fix.

 

I contacted support and let them know this, thinking maybe the solution is the same.  I was promptly told Lenovo doesn't support linux on this laptop, so I suspect this simply will not be fixed at any point.  I asked nicely if he would consider forwarding the request along anyway and he obliged, but I doubt anything will ever come of it.

 

I can't get upset since they never made any promises to support Linux in the first place., but the fact that the BIOS fix might already exist is frustrating. 

 

 

Do you think they might be able to provide information how they were able to get bluetooth working after boot up?  The only way I know of so far is via suspend+wake.  If there's a way to get the bluetooth to come up from command line, that at least opens up the possibility to write a quick script to run at startup.

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33 Posts

01-11-2010

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 1:15 AM
 wrote:

The A485, E485, and E585 all had the same issue at launch, the A485 is the only one that officially supports linux, and it's the only one that got a fix.

 

I contacted support and let them know this, thinking maybe the solution is the same.  I was promptly told Lenovo doesn't support linux on this laptop, so I suspect this simply will not be fixed at any point.  I asked nicely if he would consider forwarding the request along anyway and he obliged, but I doubt anything will ever come of it.

That's really a junk attitude: we don't suport Linux on "this" laptop, so we won't fix bugs in our firmware. Highly unprofessional. Multiplied by the fact that there is no open firmware that works with these laptops, I wonder if it's even worth it buying them for Linux users to begin with. I was considering buying the sucessor of E485 with Zen+ once it comes out, but after such stories I'm seriosuly thinking to completely avoid Lenovo.

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 4:05 AM

 wrote:

 

 

Do you think they might be able to provide information how they were able to get bluetooth working after boot up?  The only way I know of so far is via suspend+wake.  If there's a way to get the bluetooth to come up from command line, that at least opens up the possibility to write a quick script to run at startup.


I have asked them to provide some more information and clarification. If they respond ill update you.

My next course of action will be to email the ceo of lenovo for assistance. (hopeful i know, but i got this far emailing the intel CEO)

 

Cheers

 

 

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33 Posts

01-11-2010

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 4:37 AM
 wrote:

My next course of action will be to email the ceo of lenovo for assistance. (hopeful i know, but i got this far emailing the intel CEO)

 

Respect to Intel for not ignoring your e-mail and doing a proper research of the issue!

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25 Posts

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AU

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 7:19 AM

 wrote:

Respect to Intel for not ignoring your e-mail and doing a proper research of the issue!


I know right, massive respect for Bob Swan following up.

I've sent my email off to a few heads @ lenovo hopefully we get heard.

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4 Posts

07-08-2018

DE

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Betreff: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 10:43 AM
Hello! Here are my test results with Kernel 4.18 (Ubuntu 18.10 default) on a ThinkPad E585: Bluetooth works if enabled via Hotkey and Suspend + X + Wayland works always. Feel free to ask more about my configuration :) Riiemow
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5 Posts

03-01-2019

NL

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 10:49 AM

I have today noticed that my E585/Ryzen 5 2500u running Ubuntu 18.10 kernel 5.0 is stable for as long as i don't plugin the powercord; once i plug in then i get crashes in chrome, firefox and also specifically jvm craches (i noticed pycharm won't start any more).

Anyone recognize this?

Paul

 

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07-08-2018

DE

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 10:51 AM

  schrieb:

I have today noticed that my E585/Ryzen 5 2500u running Ubuntu 18.10 is stable for as long as i don't plugin the powercord; once i plug in then i get crashes in chrome, firefox and also specifically jvm craches (i noticed pycharm won't start any more).

Anyone recognize this?

Paul

 


I'm have this issue not.
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68 Posts

10-20-2018

CA

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Re: ThinkPad E485/E585 - Firmware bug ACPI IVRS table

2019-03-08, 13:40 PM

There's a thread at the AMD support Forums where we could also ask them to fix this.

 

https://community.amd.com/thread/237524

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