Hi guys,
I get a black screen when I boot OpenBSD 5.7, just before the console login.
I've been able to get to the console login the machine by entering "boot -c",
"disable radeondrm", and then "quit" at the boot prompt. Based of my
internet sleuthing, I've checked that all drivers are up to date
(have radeondrm-firmware-2013-1002p0.tgz). I've also created a
/etc/sysctl.conf file, and put "machdep.allowaperture=2" in there. The CPU is
a Haswell i3 4170, and the GPU is an AMD FirePro v4900, featuring a 6670
"Turks" processor. Everything works fine as long as my Radeon card is
disabled. How do I fix this problem? Thanks!
