Re: [gentoo-user] No wifi

[Walter Dnes]

On Tue, Jul 14, 2020 at 10:05:52AM +0100, Michael wrote

> Is there a subdirectory 'iwlwifi-5000-ucode-5.4.A.11' in /lib/firmware/ ?
>
> I'm asking because the vanilla sys-kernel/linux-firmware does not create such
> a subdirectory.  This is what is listed here:
>
> $ ls -la /lib/firmware/iwlwifi-5000*
> -rw-r--r-- 1 root root 345008 Jun 27 08:58 /lib/firmware/iwlwifi-5000-1.ucode
> -rw-r--r-- 1 root root 353240 Jun 27 08:58 /lib/firmware/iwlwifi-5000-2.ucode
> -rw-r--r-- 1 root root 340696 Jun 27 08:58 /lib/firmware/iwlwifi-5000-5.ucode
>
> Does dmesg reveal anything untoward in the kernel failing to find
> or load this firmware?

  Still no wireless, but one bit of progress.  It seems that the kernel
does *NOT* like using subdirectories below /lib/firmware.  I copied the
ucode file to /lib/firmware and changed the path appropriately before
building the kernel.  Now dmesg at bootup shows...

[    0.757370] Intel(R) Wireless WiFi driver for Linux
[    0.757372] Copyright(c) 2003- 2015 Intel Corporation
[    0.757478] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[    0.757877] iwlwifi 0000:03:00.0: loaded firmware version 8.83.5.1 build 33692 op_mode iwldvm
[    0.757963] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUG disabled
[    0.757967] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEBUGFS disabled
[    0.757970] iwlwifi 0000:03:00.0: CONFIG_IWLWIFI_DEVICE_TRACING disabled
[    0.757973] iwlwifi 0000:03:00.0: Detected Intel(R) WiFi Link 5100 AGN, REV=0x54
[    0.761128] [drm] HPD interrupt storm detected on connector DP-3: switching from hotplug detection to polling
[    0.762028] fbcon: i915drmfb (fb0) is primary device
[    0.795312] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'

> Also, make sure the wireless NIC is enabled in the BIOS and powered
> up by toggling the appropriate Fn key combo, e.g. Fn+F5 or whatever
> it is on your laptop.

  It's enabled in BIOS and the Gentoo minimal install usb stick brings
up wlan0 just fine.  In my first post, I listed what kernel settings I
had set.  Is there anything else required that I'm missing?  After all
these years of hard-wired, I'm still a newbie at wireless, so I could be
missing something glaringly obvious.

-- 
Walter Dnes <waltdnes@××××××××.org>
I don't run "desktop environments"; I run useful applications