[Bug 99851] [drm:.r600_ring_test [radeon]] *ERROR* radeon: ring 0 test failed (scratch(0x8504)=0xCAFEDEAD)

[bugzilla-daemon@freedesktop.org]

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https://bugs.freedesktop.org/show_bug.cgi?id=99851

--- Comment #16 from intermediadc@hotmail.com <intermediadc@hotmail.com> ---
Created attachment 129780
  --> https://bugs.freedesktop.org/attachment.cgi?id=129780&action=edit
my xorg log 7xxx

(In reply to Alex Deucher from comment #14)
> (In reply to intermediadc@hotmail.com from comment #9)
> > Created attachment 129726 [details]
> > xorg new
> > 
> > Hi Alex,
> > making more tests changing totally my inside pci setting and . 
> > no ring issue but xorg crash totally if i select the radeon. the only way
> 
> Let's start with the case where the kernel ring tests succeed.  What slot
> was that?  The kernel driver needs to work correctly before we try anything
> else.  Now, in the case where the kernel driver loads properly with no
> errors, what happens next?  What do you mean by "xorg crash totally if i
> select the radeon"?  segfault?  blank screen?  Something else?  Can you
> provide the xorg log when this happens?

Hi alex now the only slot usable is the first one the 16x,
before xorg 1.6 the only way for have not apple gpu was the 8x and there there
was not issue.
Now radeon 4xxx work on 16x with accelerations but freeze, radeon 5xxx and 6xxx
work but have (cafedead)only fbdev run. 7xxx run no issue but glamor crash.
I open another bug for the glamor. Michel Danze ask a gdb debug of xorg.. but
im not able to made it in fedora if i run xorg on gdb i have a black screen
with only a cursor on the top of the screen :-/
i will check if  on ubuntu mate i will able to make a gdb of xorg. where there
i have fence errors on ring 0 and 3 or glitched video.
if i delete the glemoregl.so module xorg work i have desktop but no gpu
accelerations.

i atteached my xorg.log with 7750 

The other guys i think have my same issue with radeonsi/amdgpu on ppc hw.

why im sure it is an xorg issue or one of xorg  component issue
(cafedead),because on Lubuntu 14.04.5 i had kernel 4.9 and no issue but xorg
was 1.6

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