re: xsrc/54265: X with MKLLVMRT=no not working

[matthew green <mrg%eterna.com.au@localhost>]

hmm, there's nothing in the log that would indicate what went
wrong, it is as if the clients all went away and it exited..

can you try ktrace or some additional logging to see what is
happening?

> I did a local build with MKLLVMRT=no, thinking my machine would not be affected
> by the lost functionality (X log never mentioned AMDGPU or similar).
> 
> But the resulting system can not start X at all.
> 
> radeon0 at pci1 dev 0 function 0: vendor 1002 product 68e0 (rev. 0x00)
> kern info: [drm] initializing kernel modesetting (CEDAR 0x1002:0x68E0 0x1025:0x0347).

i don't understand the comment about AMDGPU here.  all radeon
(and unsupported amdgpu) will be affected by MKLLVMRT=no.

for me, it meant GL is slow, but Xvideo is there, so while it
can't do "mpv -vo gpu" well, it can do "mpv -vo xv" fine.


.mrg.