re: kern/54976: radeon framebuffer fails initialization in NetBSD-9

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

The following reply was made to PR kern/54976; it has been noted by GNATS.

From: matthew green <mrg%eterna.com.au@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: gnats-admin%netbsd.org@localhost, netbsd-bugs%netbsd.org@localhost, rcbixler%nyx.net@localhost
Subject: re: kern/54976: radeon framebuffer fails initialization in NetBSD-9
Date: Fri, 21 Feb 2020 11:14:46 +1100

 >  >     https://www.netbsd.org/~mrg/radeon_cik.diff
 >  
 >  No, it didn't work, but I got a different error this time.  I'll
 >  attach a screenshot here, but the error says something about mixing
 >  old and new microcode.
 >  
 >  I have a couple of questions here.  My patch which allows the
 >  framebuffer to work just skips trying to load the *mec2.bin microcode
 >  and it works well.  I have had no display related problems using X
 >  under the modified NetBSD-9.  So, is the kaveri_mec2.bin microcode
 >  really desirable?  The second question is whether it's found in the
 >  installation.  I can find the file by plugging it into a search
 >  engine, but I don't find it in places like /libdata/firmware/radeon or
 >  dev/microcode/radeon.  Is there an actual kaveri_mec2.bin file that's
 >  missing?
 
 interesting.  we have a weird problem to deal with then,
 and i'm not sure of the solution.  (it's related to having
 two files with the same case-insensitive name.)
 
 try installing this file, without the patch:
 
    https://www.netbsd.org/~mrg/kaveri_mec2.bin
 
 which is the expected file.  you can find *all* these files
 in the linux-firmware package from kernel.org, if there are
 other files that are missing..
 
 
 .mrg.