[SOLVED] wifi not working

[klas]

when I try to enable on kernel config on the cfg80211 - wireless configuration API , it complains

[klas]

Any help in fixing my wifi please .

[eccerr0r]

Yow. Forum layout corruption by bad tagging. Use [ code ] tags instead of [ quote ] tags before Hu gets to it

Please pastebin your kernel config.

You do need to have CONFIG_CFG80211 and its associated configs, CONFIG_LIB80211 and CONFIG_MAC80211 and its scheduler.
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[klas]

[eccerr0r]

In your kernel directory that you used to compile your kernel, usually but not always:

/usr/src/linux

there is a (hidden) file called .config that contains how you last saved your kernel configuration. I'm not on a machine that I have wifi build properly at the moment but I can't think of a reason why this excerpt of the file .config is not proper:

[klas]

My config looks like

[eccerr0r]

That looks like it has most everything you need, now, are you running this kernel?
Make sure your uname -a is running the proper kernel.
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[klas]

yeah I think so . I have two folders in /usr/src/ linux and linux-4.12.5-gentoo folder but they both have the same .config , the contents look alike . I really don t know what the cause though i am ready to learn.

The kernel I am running is 4.12.5-gentoo. I also did not understand what you mean by scheduler , I wish to know more about it

Any advice please

[eccerr0r]

As far as I can tell you're going through some strange way to configure the kernel. The warning is coming from

[klas]

bluetoth not working and wireless not working
I wish to know if Intel® Dual Band Wireless-AC 7260 is supported by gentoo

[eccerr0r]

Yeah, you look like you have some module mixup going on here.

Try cleaning up the intermediate files and building everything again.

[Hu]

klas: please don't bump your own posts. It's bad form (especially after only 6 minutes - threads don't get buried quite that fast around here). Moreover, it works against you. Some users run a canned search for threads with zero replies as a way of finding posts to answer. When you replied to yourself, you removed your thread from that list, even though you were not replying to announce that the thread was solved. Thus, they would no longer see your thread on the list of unanswered threads.

Although not impossible, as a general rule, Gentoo supports exactly the hardware that the upstream Linux kernel supports, no more and no less. So your question is not whether Gentoo supports the device, but whether the device is supported by the Linux kernel. It's almost certain that, if the device is supported, you need to enable some set of kernel configuration options to include that support in the kernel. Most users won't have that device, so most users will want to exclude it from their kernel.

To answer whether this device is supported, it would help to have the device's identifying information, not its marketing name. If it's a PCI device, lspci -nn would be good. If it's a USB device, lsusb -v. In some cases, we can map a marketing name to identifying numbers, but many manufacturers have a nasty habit of assigning the same marketing name (and sometimes even the same model number) to several physically distinct products with different internal identifiers, so it's better to get the identifying data off the device itself than to try to derive it from marketing materials.

[klas]

Thanks for the advise and reply ,
for some reason , when i type in lspci -knn, it s not showing iwlwifi as driver in use , I must have configured it wrongly somewhere

https://pastebin.com/3fdjqGM5 [Moderator edit: switched from pastebin's embed_js link to the traditional link. The forums do not embed Javascript from remote hosts, so the embed_js page just looks odd when users open it directly. -Hu]

when I place ifconfig

[charles17]

[klas]

[charles17]

https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi?s%5b%5d=iwldvm#firmware and https://wireless.wiki.kernel.org/en/users/drivers/iwlwifi?s%5b%5d=iwlmvm#firmware are mentioned in the article.

[eccerr0r]

I think most wifi drivers will still load but give an error in dmesg when it can't find the firmware.

Merging sys-kernel/linux-firmware will get most of the firmwares for hardware.

klas, remember that every time that you change your configuration, you need to re-run make, and make modules_install .
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[klas]

Thanks for the reply , I follow the advise and end up like this, the driver is on but still no wifi

[eccerr0r]

Somehow CONFIG_DEV_COREDUMP was missed when building your kernel or somehow you're mixing kernel-driver versions.
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[klas]

well , I just follow the wiki installation https://wiki.gentoo.org/wiki/Handbook:AMD64/Full/Installation step by steps . I am reinstalling this time with some bios config , I understand that lenovo x1 carbon second gen needs lot of stuff to be disabled from bios , so I have done that , fingers crossed , I hope it will work .

Is the below too much kernel driver ?

[eccerr0r]

Please carefully watch what you're doing.
It looks like you have two kernels, because they have the same version, pointing to the same initramfs. You need to make sure each kernel you build is using the right initramfs and modules. One option that can be helpful is the kernel CONFIG_LOCALVERSION that you can set that could help keep versions of the same upstream kernel distinct.

That is unless the two kernels you have - kernel-genkernel-x86_64-4.12.5-gentoo and vmlinuz-4.12.5-gentoo - are actually the same...
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[klas]

thanks , I resolve to try first on a vm in my free time then I will see if I can try it on my laptop or desktop later

[klas]

yeah
It is solved
just configure with the command

[eccerr0r]

--menuconfig or --makeconfig ?

Well glad you got it sorted out, but it seemed like a version mixup, sometimes deleting everything and starting over helps...
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