On Sat, Oct 05, 2019 at 04:38:23AM +0100, Ken Moffat via blfs-dev wrote:
> On Fri, Oct 04, 2019 at 01:51:15AM +0100, Ken Moffat via blfs-dev wrote:
> >
> > > The hack is actually for Xorg's own modesetting driver, but if it
> > > also fixes things for ati/amdgpu then all will be good.
> > >
> >
> > I'm attaching a headed version of the patch: AFAICS it is less
> > dangerous than the alternative of running X as root in the old way.
> >
>
> First update: the modesetting driver doesn't need this patch (tested
> on a build on my haswell after ripping out the inel driver, and now
> tested on an amdgpu machine using modesetting in a fresh build).
>
Second update: I think I'm going to give up (but both the radeon and
amdgpu drivers are working).
I spent time looking at the patch on my (radeon) Caicos machine
where it was working. AFAICS the patch causes the server to call
/usr/bin/drm_master_util in the added thread_func, whcih is invoked
further down. What I did not initially notice was that in
thread_func the exist on bad status is commented. So, the patch
invokes /usr/bin/drm_master_util : but it does not create that and I
have no such program installed,
After looking at that I went back to the Picasso where I was using
modesetting, and installed the amdgpu driver without patching the
server. Using startx works, the Xorg log shows it is using AMDG@U.
Now I've come back to the Caicos (R600) and rebuilt xorg-server
without the patch. Again, startx works and the log shows it is
(still) using RADEON.
I have to conclude that I overlooked something in my builds on
Friday. All I can say (and I guess it won't wash with DJ or Bruce)
was that replacing the book with the rootless version was for me a
very painful experience (no diffs to look at).
I think I'd better concentrate on things which cause me less pain.
ĸen
--
Truth, in front of her huge walk-in wardrobe, selected black leather
boots with stiletto heels for such a barefaced truth.
- Unseen Academicals
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