I get the following with 10.1 or NetBSD 11.0_BETA (GENERIC) #0: Thu
Jan 8 10:53:08 UTC 2026
when starting X:
[ 104.512784] radeon0: autoconfiguration error: error: ring 0
stalled for more than 10000msec
[ 104.512784] radeon0: warn: GPU lockup (current fence id
0x0000000000000003 last fence id 0x0000000000000006 on ring 0)
I'm able to get a working session with this file added to
/etc/X11/xorg.conf.d/20-radeon.conf:
Section "Device"
Identifier "Radeon"
Driver "modesetting"
Option "AccelMethod" "none"
EndSection
With the modesetting default of AccelMethod "glamor", X will not start with:
glamor requires at least 128 instructions (64 reported)
So it seems the older EXA radeon might be preferable, but something is
going wrong in the kernel. Has anyone looked into this drm stuff
recently?
Regards,
Kevin