On Thu, Mar 30, 2017 at 12:40:46AM +0200, Dominik George wrote: > I can confirm this issue. > > I found a workaround by setting radeon.hard_reset=1, which resets the > PCI bus after loading the firmware. Both Audio and KMS work with this > option set.
Please, what kernel version and hardware? I tried Debian kernel 4.9.18-1 (package 4.9.0-2-amd64) and with enabled HDMI audio in BIOS of Asus M2A-VM HDMI the lockup shows :(. vdr:~# cat /proc/cmdline BOOT_IMAGE=/vmlinuz-4.9.0-2-amd64 root=UUID=632652f0-7f3c-4316-a74d-d05f2fd4b3ae ro radeon.hard_reset=1 netconsole=@192.168.1.50/,@192.168.1.120/ -- Zito