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  1. Funtoo Linux
  2. FL-7340

Intel 7260 dualband wireless adapter used with NetworkManager refuses 5G connections

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    • Icon: Bug Bug
    • Resolution: Fixed Earlier
    • Icon: Important (Ebuild) Important (Ebuild)
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      nmtui refuses connection to 5G. Will connect to 2G.
      Ensured no hard blocks of 5G capability with card
      After some reading, I came to the conclusion that it was possibly due to regdom not being set correctly. Which turned out to be partially the problem.
      I set the regdom to US by doing:
      iw reg set US
      This had no effect.
      I then did
      modprobe -r iwlmvm
      modprobe cfg80211 ieee80211_regdom=US
      modprobe iwlmvm
      this worked and the card was able to connect to 5G.
      Upon subsequent reboots, i have to redo the modprobe trick again.
      I have attached various files that may be of interest: dmesg, lsmod, lspci, my kernel config (genkernel) and a script that shows the state of the card and the text file it produces.
      Show
      nmtui refuses connection to 5G. Will connect to 2G. Ensured no hard blocks of 5G capability with card After some reading, I came to the conclusion that it was possibly due to regdom not being set correctly. Which turned out to be partially the problem. I set the regdom to US by doing: iw reg set US This had no effect. I then did modprobe -r iwlmvm modprobe cfg80211 ieee80211_regdom=US modprobe iwlmvm this worked and the card was able to connect to 5G. Upon subsequent reboots, i have to redo the modprobe trick again. I have attached various files that may be of interest: dmesg, lsmod, lspci, my kernel config (genkernel) and a script that shows the state of the card and the text file it produces.
    • This impacts 5G connections with NetworkManager
    • I am not sure if this is a wireless-regdb issue or just something with the way OpenRC is configured.
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      The wireless card works as it should with distributions Debian, Manjaro, Fedora, Linux Mint, and Tails. This card will work in as it is intended with Funtoo only after I remove the module iwlmvm, then modprobe cfg80211 with ieee80211_regdom=US and modprobe iwlmvm again. This is non-persistent and I have to pass the arguments after every boot. I do not believe the issue is kernel-specific as I have both the Debian-LTS-sources and Debian-sources installed. And the Debian liveusb that I tried is running the same kernel as Funtoo. I have also ensured that the card had no hard blocks on 5G.
      Show
      The wireless card works as it should with distributions Debian, Manjaro, Fedora, Linux Mint, and Tails. This card will work in as it is intended with Funtoo only after I remove the module iwlmvm, then modprobe cfg80211 with ieee80211_regdom=US and modprobe iwlmvm again. This is non-persistent and I have to pass the arguments after every boot. I do not believe the issue is kernel-specific as I have both the Debian-LTS-sources and Debian-sources installed. And the Debian liveusb that I tried is running the same kernel as Funtoo. I have also ensured that the card had no hard blocks on 5G.

      On a Thinkpad T440P, the Intel Dualband wireless adapter 7260 (rev83) refuses to connect to 5G. The card is capable of both 2G and 5G.

      I have attached several files that will hopefully help with diagnosing the issue. I have spent several months trying to fix this issue, hoping that this issue was not a failure on my part.

      I have tried on Debian-Sources-LTS and Debian-Sources with similar results. So it is not kernel specific.

        1. .config
          222 kB
        2. dmesg
          55 kB
        3. drobbins-wireless-info.txt
          24 kB
        4. IMG_2231.jpg
          IMG_2231.jpg
          632 kB
        5. lsmod
          6 kB
        6. lspci
          2 kB
        7. modinfo_iwlwifi
          27 kB
        8. wireless-info.txt
          29 kB
        9. wireless-info-script
          17 kB

            Unassigned Unassigned
            krish krish
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              Created:
              Updated:
              Resolved: