Created attachment 285967 [details] dmesg I do have Intel ax200 adapter. I'm forced to use kernel 4.9 on Jetson Nano device, so I had to use iwlwifi backport. Once iwlwifi backport installed it breaks all my other wifi adapter drivers, except Tp-Link one. Please fix it or advice how to fix it. disagrees about version of symbol __cfg80211_alloc_event_skb disagrees about version of symbol __cfg80211_alloc_reply_skb disagrees about version of symbol __cfg80211_send_event_skb disagrees about version of symbol cfg80211_del_sta_sinfo disagrees about version of symbol cfg80211_disconnected disagrees about version of symbol cfg80211_get_bss disagrees about version of symbol cfg80211_ibss_joined disagrees about version of symbol cfg80211_inform_bss_frame_data disagrees about version of symbol cfg80211_mgmt_tx_status disagrees about version of symbol cfg80211_michael_mic_failure disagrees about version of symbol cfg80211_new_sta disagrees about version of symbol cfg80211_put_bss disagrees about version of symbol cfg80211_ready_on_channel disagrees about version of symbol cfg80211_remain_on_channel_expired disagrees about version of symbol cfg80211_roamed disagrees about version of symbol cfg80211_rx_mgmt disagrees about version of symbol cfg80211_scan_done disagrees about version of symbol cfg80211_unlink_bss disagrees about version of symbol cfg80211_vendor_cmd_reply disagrees about version of symbol wiphy_apply_custom_regulatory disagrees about version of symbol wiphy_free disagrees about version of symbol wiphy_new_nm disagrees about version of symbol wiphy_register disagrees about version of symbol wiphy_unregister Unknown symbol __cfg80211_alloc_event_skb (err -22) Unknown symbol __cfg80211_alloc_reply_skb (err -22) Unknown symbol __cfg80211_send_event_skb (err -22) Unknown symbol __ieee80211_get_channel (err 0) Unknown symbol cfg80211_connect_bss (err 0) Unknown symbol cfg80211_del_sta_sinfo (err -22) Unknown symbol cfg80211_disconnected (err -22) Unknown symbol cfg80211_get_bss (err -22) Unknown symbol cfg80211_ibss_joined (err -22) Unknown symbol cfg80211_inform_bss_frame_data (err -22) Unknown symbol cfg80211_mgmt_tx_status (err -22) Unknown symbol cfg80211_michael_mic_failure (err -22) Unknown symbol cfg80211_new_sta (err -22) Unknown symbol cfg80211_put_bss (err -22) Unknown symbol cfg80211_ready_on_channel (err -22) Unknown symbol cfg80211_remain_on_channel_expired (err -22) Unknown symbol cfg80211_roamed (err -22) Unknown symbol cfg80211_rx_mgmt (err -22) Unknown symbol cfg80211_scan_done (err -22) Unknown symbol cfg80211_unlink_bss (err -22) Unknown symbol cfg80211_vendor_cmd_reply (err -22) Unknown symbol wiphy_apply_custom_regulatory (err -22) Unknown symbol wiphy_free (err -22) Unknown symbol wiphy_new_nm (err -22) Unknown symbol wiphy_register (err -22) Unknown symbol wiphy_unregister (err -22)
This fundamentally cannot be solved - you have to install all wifi drivers that you want to use from backports.
(In reply to Johannes Berg from comment #1) > This fundamentally cannot be solved - you have to install all wifi drivers > that you want to use from backports. Hi, thanks for the fast reply. rtl8812au and mt7601u drivers are not available as a backports. Do I understand correctly, the only way to make it work is fixing source of rtl8812au and mt7601u drivers?
They're non-upstream drivers? I have no idea, sorry. Maybe.
(In reply to Johannes Berg from comment #3) > They're non-upstream drivers? I have no idea, sorry. Maybe. I do have source code for rtl8812au and mt7601u drivers, I can compile them and they works fine. But once I install iwlwifi backport all other drivers stops to work with dmesg that I sent already. When I remove iwlwifi backport other drivers starting to work again, so I decided maybe it is iwlwifi bug.
No, it's a consequence of backports shipping a cfg80211 module, and the other drivers going against the kernel version of it, which are different ... don't see a good way to solve this