[Bug 17571] New: Nouveau and PPC64 issues

[Bug 17571] New: Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571

           Summary: Nouveau and PPC64 issues
           Product: xorg
           Version: unspecified
          Platform: Other
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: r.goyet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


Running nouveau on PPC64 is a whole experience :-)

 - Running from git/master crashes X : "(EE) NOUVEAU(0): No known BIOS
signature found"

 - Removing nvidiafb and using only offb was suggested, done, but didn't change
a lot of things

 - Commenting { "PROM", load_vbios_prom }," in nv_bios.c fixed the first issue.

 - I was then back to the same state I was at a few weeks ago : the screen is
full of weird vertical multicolored lines.

 - Taking a screenshot with ImageMagick's 'import' shows a perfectly good image

 - Trying to go back to the console (killing X) would show a black screen

 - Adding "return;" at the start of the run_tmds_table function in nv_bios.c
mostly fixes the issu : the screen is now totally readable, even though some
artefact appear throughout the screen

 - Adding `Option "Randr12" "Off"' in your xorg.conf device section eventually
totally fixed the issue, letting me use nouveau on a PPC64 machine !!


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #1 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-09-14 10:29:19 PST ---
Curing the artefacts when in randr12 mode is the first step, so please make
register dumps from within X (if seeing to type is a problem, do it over SSH),
and attach them here -- one with randr12 disabled (and no corruption present),
and one with randr12 enabled and the corruption present -- as follows:

git clone git://people.freedesktop.org/~stuart/radeontool
make
./radeontool regs > logfile

Also, adding the xorg log from http://pastebin.com/m443a3b50 (or a similar
newer one) to this bug as an attachment will ensure it doesn't get lost.


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #2 from r.goyet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org  2008-10-10 10:08:13 PST ---
Created an attachment (id=19575)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=19575)
Xorg output


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #3 from r.goyet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org  2008-10-10 10:08:51 PST ---
Created an attachment (id=19576)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=19576)
radeontools reg, without randr12


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #4 from r.goyet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org  2008-10-10 10:09:11 PST ---
Created an attachment (id=19577)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=19577)
radeontools reg, with randr12


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #5 from r.goyet-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org  2008-10-10 10:09:57 PST ---
Added requested attachments.
By the way, radeontool's output doesn't seem to change with or without randr


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=17571





--- Comment #6 from Stuart Bennett <sb476-KWPb1pKIrIJaa/9Udqfwiw@public.gmane.org>  2008-10-13 19:22:40 PST ---
Created an attachment (id=19639)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=19639)
Remove some reg differences shown by radeontool

I'm not sure what you mean in the above comment: a diff of the two radeontool
logs you attached shows some differences.  Please try the attached patch and
see if it improves randr12 mode.  Note that this patch is made against current
git, so you need to update to that to apply it; be sure to apply the "return;"
at the start of run_tmds_table, and use offb, as before (the load_vbios_prom
issue is now fixed upstream).

If it's possible for you to test a monitor with a regular analogue vga input at
some stage, that would also be very useful.


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[Bug 17571] Nouveau and PPC64 issues

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

https://bugs.freedesktop.org/show_bug.cgi?id=17571

Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID

--- Comment #7 from Lucas Stach <dev-8ppwABl0HbeELgA04lAiVw@public.gmane.org> 2011-02-08 09:07:37 PST ---
No reaction from reporter for two years now. If you still have issues please
try with a recent nouveau version and open a new bugreport.

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