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On Tuesday, 14 July 2020 18:20:39 BST Walter Dnes wrote: |
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> On Tue, Jul 14, 2020 at 10:05:52AM +0100, Michael wrote |
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> > Does dmesg reveal anything untoward in the kernel failing to find |
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> > or load this firmware? |
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> |
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> Still no wireless, but one bit of progress. It seems that the kernel |
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> does *NOT* like using subdirectories below /lib/firmware. I copied the |
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> ucode file to /lib/firmware and changed the path appropriately before |
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> building the kernel. Now dmesg at bootup shows... |
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That's OK, up to a point ... |
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> [ 0.757370] Intel(R) Wireless WiFi driver for Linux |
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> [ 0.757372] Copyright(c) 2003- 2015 Intel Corporation |
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> [ 0.757478] iwlwifi 0000:03:00.0: can't disable ASPM; OS doesn't have |
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> ASPM control [ 0.757877] iwlwifi 0000:03:00.0: loaded firmware version |
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> 8.83.5.1 build 33692 op_mode iwldvm [ 0.757963] iwlwifi 0000:03:00.0: |
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> CONFIG_IWLWIFI_DEBUG disabled [ 0.757967] iwlwifi 0000:03:00.0: |
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> CONFIG_IWLWIFI_DEBUGFS disabled [ 0.757970] iwlwifi 0000:03:00.0: |
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> CONFIG_IWLWIFI_DEVICE_TRACING disabled [ 0.757973] iwlwifi 0000:03:00.0: |
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> Detected Intel(R) WiFi Link 5100 AGN, REV=0x54 [ 0.761128] [drm] HPD |
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> interrupt storm detected on connector DP-3: switching from hotplug |
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> detection to polling [ 0.762028] fbcon: i915drmfb (fb0) is primary |
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> device |
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> [ 0.795312] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs' |
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Normally you should see something like this following the above entries: |
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[ 16.017699] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0 |
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[ 16.167105] EXT4-fs (sda4): mounted filesystem with ordered data mode. |
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Opts: (null) |
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[ 18.384509] iwlwifi 0000:04:00.0: Radio type=0x1-0x2-0x0 |
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[ 18.500644] iwlwifi 0000:04:00.0: Radio type=0x1-0x2-0x0 |
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> > Also, make sure the wireless NIC is enabled in the BIOS and powered |
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> > up by toggling the appropriate Fn key combo, e.g. Fn+F5 or whatever |
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> > it is on your laptop. |
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> |
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> It's enabled in BIOS and the Gentoo minimal install usb stick brings |
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> up wlan0 just fine. In my first post, I listed what kernel settings I |
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> had set. Is there anything else required that I'm missing? After all |
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> these years of hard-wired, I'm still a newbie at wireless, so I could be |
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> missing something glaringly obvious. |
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In addition to your kernel selections I also have: |
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CONFIG_RFKILL=y |
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CONFIG_RFKILL_LEDS=y |
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CONFIG_RFKILL_INPUT=y |
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CONFIG_RFKILL_GPIO=y |
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... |
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CONFIG_WLAN=y |
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# CONFIG_WLAN_VENDOR_ADMTEK is not set |
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# CONFIG_WLAN_VENDOR_ATH is not set |
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# CONFIG_WLAN_VENDOR_ATMEL is not set |
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# CONFIG_WLAN_VENDOR_BROADCOM is not set |
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# CONFIG_WLAN_VENDOR_CISCO is not set |
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CONFIG_WLAN_VENDOR_INTEL=y |
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# CONFIG_IPW2100 is not set |
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# CONFIG_IPW2200 is not set |
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# CONFIG_IWL4965 is not set |
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# CONFIG_IWL3945 is not set |
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CONFIG_IWLWIFI=m |
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CONFIG_IWLWIFI_LEDS=y |
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CONFIG_IWLDVM=m |
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# CONFIG_IWLMVM is not set |
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CONFIG_IWLWIFI_OPMODE_MODULAR=y |
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As you can see I'm using modules and the kernel loads the firmware without me |
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including it in the kernel config. Not sure if there is a difference between |
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built-in and module configuration for the Wireless devices, but you could try |
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it. If you have not built RFKILL in your kernel I suggest you do so and |
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reboot. Finally, may be worth checking the troubleshooting section here: |
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https://wiki.gentoo.org/wiki/Iwlwifi |
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HTH. |
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