Re: kern/59714: Struggling with iwm on Intel Wireless 8265 / 8275: could not load firmware + carrier lost

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

El 20/10/25 a las 17:30, Michael van Elst via gnats escribió:
> The following reply was made to PR kern/59714; it has been noted by GNATS.
>
> From: mlelstv%serpens.de@localhost (Michael van Elst)
> To: gnats-bugs%netbsd.org@localhost
> Cc:
> Subject: Re: kern/59714: Struggling with iwm on Intel Wireless 8265 / 8275: could not load firmware + carrier lost
> Date: Mon, 20 Oct 2025 15:28:53 -0000 (UTC)
>
>   marc@coquand.email writes:
>   
>   >On my Thinkpad T480S (Intel Wireless 8265 / 8275), I'm having issues connecting to wifi.
>   
>   
>   >iwm0: autoconfiguration error: could not load firmware (error 35, ok 1)
>   >iwm0: autoconfiguration error: cpu1 status: 0x3030001
>   >iwm0: autoconfiguration error: cpu2 status: 0x0
>   >iwm0: autoconfiguration error: could not load firmware (error 35)
>   >iwm0: autoconfiguration error: could not load firmware (error 35, ok 1)
>   >iwm0: autoconfiguration error: cpu1 status: 0xa5a5a5a0
>   >iwm0: autoconfiguration error: cpu2 status: 0xa5a5a5a0
>   
>   
>   The iwm driver has lots of issues and I wonder if it ever worked
>   stable for anyone.

Hi,

I am using in a daily basis iwm0 driver with this device in my thinkpad 
x260:

[     1,013793] iwm0 at pci2 dev 0 function 0: Intel Dual Band Wireless 
AC 8260 (rev. 0x3a)

The only problem I found is that sometimes it takes long time to connect 
to the router but once it connects it works "well", slow but stable.

iwm0: flags=0x8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
	ssid MiFibra-3422 nwkey *****
	powersave off
	bssid 62:8d:26:32:34:26 chan 6
	address: 44:85:00:e7:97:30
	media: IEEE802.11 autoselect (OFDM54 mode 11g)
	status: active
	inet6 fe80::4685:ff:fee7:9730%iwm0/64 flags 0 scopeid 0x3
	inet 192.168.1.204/24 broadcast 192.168.1.255 flags 0


netbsd-x260$ speedtest
Retrieving speedtest.net configuration...
Testing from Jazztel (87.222.91.152)...
Retrieving speedtest.net server list...
Selecting best server based on ping...
Hosted by Melbicom (Madrid) [10.47 km]: 11.085 ms
Testing download 
speed................................................................................
Download: 14.40 Mbit/s
Testing upload 
speed......................................................................................................
Upload: 2.18 Mbit/s

netbsd-x260$ dmesg |grep iwm
[     1,013793] acpiwmi0 at acpi0 (WMI1, PNP0C14-1): ACPI WMI Interface
[     1,013793] acpiwmibus at acpiwmi0 not configured
[     1,013793] acpiwmi1 at acpi0 (WMI2, PNP0C14-2): ACPI WMI Interface
[     1,013793] acpiwmibus at acpiwmi1 not configured
[     1,013793] acpiwmi2 at acpi0 (WMI3, PNP0C14-3): ACPI WMI Interface
[     1,013793] acpiwmibus at acpiwmi2 not configured
[     1,013793] iwm0 at pci2 dev 0 function 0: Intel Dual Band Wireless 
AC 8260 (rev. 0x3a)
[     1,013793] iwm0: interrupting at msi3 vec 0
[     6,551359] iwm0: hw rev 0x200, fw ver 22.361476.0, address 
44:85:00:e7:97:30

Also remember some iwm firmware errors after "shutdown -p now" (I cannot 
find them in the logs)

Ramiro



>   
>   I have pulled a couple of changes from OpenBSD in the last weeks
>   and now can use an Intel Wireless AC 3168. I try to get some
>   other chips (7265 and 8265) to see if these can be used as well.
>   
>