somehow I could once with kernel 4.16.2 and linux-firmware 1.173 get it working:
kernel: iwlwifi 0000:04:00.0: loaded firmware version 36.e91976c0.0 op_mode iwlmvm
kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
...but could not reproduce it and rest of times could not get working. Tried to purge original linux-firmware and reinstalled, also deleted all manually added firmware packages but still no results.
Currently working with 4.15.17 and linux-firmware 1.173:
kernel: iwlwifi 0000:04:00.0: loaded firmware version 34.0.1 op_mode iwlmvm
kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
somehow I could once with kernel 4.16.2 and linux-firmware 1.173 get it working:
kernel: iwlwifi 0000:04:00.0: loaded firmware version 36.e91976c0.0 op_mode iwlmvm
kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
...but could not reproduce it and rest of times could not get working. Tried to purge original linux-firmware and reinstalled, also deleted all manually added firmware packages but still no results.
Currently working with 4.15.17 and linux-firmware 1.173:
kernel: iwlwifi 0000:04:00.0: loaded firmware version 34.0.1 op_mode iwlmvm
kernel: iwlwifi 0000:04:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208