Realtek 1d3e:c826 not working

Realtek 1d3e:c826 not working

[Joshua Richenhagen]

Hello,

on my new Xiaomi Book Pro 14 Ryzen with Realtek b852 using newest
kernel Linux 6.1 Wifi is not recognized at all. Is the PCIe device ID
missing in the rtw89 driver?

01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852
        Subsystem: Device 1d3e:c826
        Flags: fast devsel, IRQ 255, IOMMU group 11
        I/O ports at 2000 [disabled] [size=256]
        Memory at c0900000 (64-bit, non-prefetchable) [disabled] [size=1M]
        Capabilities: [40] Power Management version 3
        Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [70] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-88-52-01
        Capabilities: [158] Latency Tolerance Reporting
        Capabilities: [160] L1 PM Substates

Kinds regards
Joshua Richenhagen

Re: Realtek 1d3e:c826 not working

[James]

https://askubuntu.com/questions/1412450/network-driver-for-realtek-10ecb852

Dec. 12, 2022 11:43:59 Joshua Richenhagen <richenhagen@gmail.com>:

> Hello,
> 
> on my new Xiaomi Book Pro 14 Ryzen with Realtek b852 using newest
> kernel Linux 6.1 Wifi is not recognized at all. Is the PCIe device ID
> missing in the rtw89 driver?
> 
> 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852
>         Subsystem: Device 1d3e:c826
>         Flags: fast devsel, IRQ 255, IOMMU group 11
>         I/O ports at 2000 [disabled] [size=256]
>         Memory at c0900000 (64-bit, non-prefetchable) [disabled] [size=1M]
>         Capabilities: [40] Power Management version 3
>         Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
>         Capabilities: [70] Express Endpoint, MSI 00
>         Capabilities: [100] Advanced Error Reporting
>         Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-88-52-01
>         Capabilities: [158] Latency Tolerance Reporting
>         Capabilities: [160] L1 PM Substates
> 
> Kinds regards
> Joshua Richenhagen

Re: Realtek 1d3e:c826 not working

[Larry Finger]

On 12/12/22 13:19, James wrote:
> https://askubuntu.com/questions/1412450/network-driver-for-realtek-10ecb852
> 
> Dec. 12, 2022 11:43:59 Joshua Richenhagen <richenhagen@gmail.com>:
> 
>> Hello,
>>
>> on my new Xiaomi Book Pro 14 Ryzen with Realtek b852 using newest
>> kernel Linux 6.1 Wifi is not recognized at all. Is the PCIe device ID
>> missing in the rtw89 driver?
>>
>> 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852
>>          Subsystem: Device 1d3e:c826
>>          Flags: fast devsel, IRQ 255, IOMMU group 11
>>          I/O ports at 2000 [disabled] [size=256]
>>          Memory at c0900000 (64-bit, non-prefetchable) [disabled] [size=1M]
>>          Capabilities: [40] Power Management version 3
>>          Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
>>          Capabilities: [70] Express Endpoint, MSI 00
>>          Capabilities: [100] Advanced Error Reporting
>>          Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-88-52-01
>>          Capabilities: [158] Latency Tolerance Reporting
>>          Capabilities: [160] L1 PM Substates
>>
>> Kinds regards
>> Joshua Richenhagen

That driver will not be in the kernel until kernel 6.2, which is predicted to be 
released on Feb. 19, 2023.

In the meantime, clone the rtw89 repository at 
https://github.com/lwfinger/rtw89.git, and follow the instructions in README.md 
in the cloned repo. Pat particular attention to the last paragraph if you are 
running Ubuntu. For some reason, they have not included the firmware for this 
device even though it has been in the official linux-firmware repo since October.

Larry

Re: Realtek 1d3e:c826 not working

[Joshua Richenhagen]

Thank you very much for the help Ping-Ke and Larry.

For anyone suffering from the same problem and using Ubuntu. I've
build a Kernel from wireless-next.git (6.1.0-rc8) and one from
linux-next.git (6.1.0-next-20221215) which both brings bluetooth and
wifi to work with this chip.

https://drive.google.com/drive/folders/134-ohL57i8n7aW48gZ-ielh1-Vpczm0h?usp=sharing

Am Mi., 14. Dez. 2022 um 18:02 Uhr schrieb Larry Finger
<Larry.Finger@lwfinger.net>:
>
> On 12/12/22 13:19, James wrote:
> > https://askubuntu.com/questions/1412450/network-driver-for-realtek-10ecb852
> >
> > Dec. 12, 2022 11:43:59 Joshua Richenhagen <richenhagen@gmail.com>:
> >
> >> Hello,
> >>
> >> on my new Xiaomi Book Pro 14 Ryzen with Realtek b852 using newest
> >> kernel Linux 6.1 Wifi is not recognized at all. Is the PCIe device ID
> >> missing in the rtw89 driver?
> >>
> >> 01:00.0 Network controller: Realtek Semiconductor Co., Ltd. Device b852
> >>          Subsystem: Device 1d3e:c826
> >>          Flags: fast devsel, IRQ 255, IOMMU group 11
> >>          I/O ports at 2000 [disabled] [size=256]
> >>          Memory at c0900000 (64-bit, non-prefetchable) [disabled] [size=1M]
> >>          Capabilities: [40] Power Management version 3
> >>          Capabilities: [50] MSI: Enable- Count=1/1 Maskable- 64bit+
> >>          Capabilities: [70] Express Endpoint, MSI 00
> >>          Capabilities: [100] Advanced Error Reporting
> >>          Capabilities: [148] Device Serial Number 00-e0-4c-ff-fe-88-52-01
> >>          Capabilities: [158] Latency Tolerance Reporting
> >>          Capabilities: [160] L1 PM Substates
> >>
> >> Kinds regards
> >> Joshua Richenhagen
>
> That driver will not be in the kernel until kernel 6.2, which is predicted to be
> released on Feb. 19, 2023.
>
> In the meantime, clone the rtw89 repository at
> https://github.com/lwfinger/rtw89.git, and follow the instructions in README.md
> in the cloned repo. Pat particular attention to the last paragraph if you are
> running Ubuntu. For some reason, they have not included the firmware for this
> device even though it has been in the official linux-firmware repo since October.
>
> Larry
>