CONFIG_IWLWIFI_DEBUG=y # but do NOT set CONFIG_IWLWIFI_DEBUG_EXCLUSIVE=y

: You can safely ignore it, or suppress the log message using a kernel module option. 1. Suppress the Error Message (Recommended)

iwl-debug-yoyo.bin is a TLV (Type-Length-Value) binary used specifically for debugging Intel WiFi firmware. It is not a functional driver required for standard WiFi operation.

Most distributions bundle Intel drivers in a single package. Ensure yours is current.

He ran ls -l . The file had been created two days ago. He didn’t remember downloading anything. He tried to read it with hexdump .

error is likely a distraction. You should instead look for errors regarding missing files (e.g., iwlwifi-xxxx.ucode ). In that case: Ask Ubuntu Install missing firmware : Ensure the firmware-iwlwifi

Find the line starting with GRUB_CMDLINE_LINUX_DEFAULT and remove any iwlwifi.fw=... entry. Then update grub:

Intel’s iwlwifi driver needs a firmware binary (e.g., iwlwifi-ty-a0-gf-a0-72.ucode ) from /lib/firmware . Common failure reasons: