Hi folks, The Intel Wifi hardware of a colleague's Tuxedo laptop (running Debian 12, kernel 6.1.76) isn't found at boot time anymore. It doesn't come back on a reboot. The kernel log shows [Mon Feb 26 13:21:23 2024] Intel(R) Wireless WiFi driver for Linux [Mon Feb 26 13:21:23 2024] RAPL PMU: API unit is 2^-32 Joules, 3 fixed counters, 655360 ms ovfl timer [Mon Feb 26 13:21:23 2024] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002) [Mon Feb 26 13:21:23 2024] iwlwifi 0000:00:14.3: Adding cdb to rf id [Mon Feb 26 13:21:23 2024] iwlwifi 0000:00:14.3: Detected RF 0x1010c000 from crf id 0x504 [Mon Feb 26 13:21:23 2024] iwlwifi: No config found for PCI dev 51f1/0000, rev=0x370, rfid=0x1010c000 [Mon Feb 26 13:21:23 2024] iwlwifi: probe of 0000:00:14.3 failed with error -22 Please note the last 3 lines. rfkill doesn't list wireless. On another Tuxedo laptop with the same hardware (AFAICT) we get [Tue Feb 27 07:35:34 2024] Intel(R) Wireless WiFi driver for Linux [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: enabling device (0000 -> 0002) [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: firmware: direct-loading firmware iwlwifi-so-a0-hr-b0-72.ucode [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: api flags index 2 larger than supported by driver [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: TLV_FW_FSEQ_VERSION: FSEQ Version: 0.0.2.36 [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: firmware: failed to load iwl-debug-yoyo.bin (-2) [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: firmware: failed to load iwl-debug-yoyo.bin (-2) [Tue Feb 27 07:35:34 2024] iwlwifi 0000:00:14.3: loaded firmware version 72.daa05125.0 so-a0-hr-b0-72.ucode op_mode iwlmvm : [Tue Feb 27 07:35:35 2024] iwlwifi 0000:00:14.3: Detected Intel(R) Wi-Fi 6 AX201 160MHz, REV=0x370 : [Tue Feb 27 07:35:35 2024] iwlwifi 0000:00:14.3: Detected RF HR B3, rfid=0x10a100 : [Tue Feb 27 07:35:36 2024] iwlwifi 0000:00:14.3: base HW address: e4:0d:xx:xx:xx:xx Upgrading the kernel to Debian's backports version 6.5.7 doesn't help. No wifi. I had upgraded the firmware file to version 83 as well, but this is moot if the firmware isn't loaded at all. Every helpful comment is highly appreciated Harri
