What steps will reproduce the problem? 1. Install Arch Linux on a computer that uses Atheros AR5B87 as the wireless chipset 2. System automatically loads, correctly, both acer_wmi and ath9k modules into the kernel 3. "ip addr" gives no network interfaces. "rfkill list all" lists one network interface, neither hard nor soft locked.

System cannot see the wireless card. If I blacklist acpi_wmi and restart, everything works as expected.

Kernel 3.0

Please provide any additional information below.

Computer is an Acer Aspire 4552-3088 with a AR5B97 chipset. When it is detected it reports itself as a AR9287.