> On Dec 19, 2018, at 10:22 AM, Andy Bradford
> <[email protected]> wrote:
>
> Thus said Daniel Dickman on Fri, 14 Dec 2018 20:45:11 -0500:
>
>> Try previous releases of OpenBSD/amd64 to check if radeondrm ever
>> worked for you on amd64.
>
> That was a fruitful suggestion. I tried 6.3 amd64 and it works. So
> somewhere after 6.3 a change was introduced that made this particular
> Radeon card not work. I'll see if I can discover which. What's the best
> way to bisect with CVS; update sources by date/time?
It was probably the big update to resync radeondrm with the linux 4.4.x kernel.
Believe that happened shortly after 6.3 was released. Previous to this,
radeondrm was synced against the linux 3.8.x kernel.
https://github.com/openbsd/src/commit/7ccd5a2c19d4480fd59ed7bbf02608c8980a7858
If you really wanted to bisect this you can use the github mirror. it would be
interesting if the drm update is *not* the commit that broke things. anyway
think you might be able to start with openbsd 6.3, install git package,
download the git tree from github then bisect and recompile the kernel and
reboot. (hopefully doesn’t need a full build of base here).
>
>> If you diff the dmesgs is there any other on
>> already been reported?
>
> I don't believe there were any other significant diffences.
btw I saw a note from kettenis@ that a drm update is being worked on:
https://marc.info/?l=openbsd-bugs&m=154512499015162&w=2
just fyi.
