Nouveau - Jan 2008 - [Bug 14092] New: No fonts and missing Icons

http://bugs.freedesktop.org/show_bug.cgi?id=14092

           Summary: No fonts and missing Icons
           Product: xorg
           Version: 7.3
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: mike at fireburn.co.uk
         QAContact: xorg-team at lists.x.org


Created an attachment (id=13736)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13736)
My xorg.conf

On a nVidia Corporation NV41.8 [GeForce Go 6800] [10de:00c8] (rev a2) Xorg
loads however the fonts are garbled and once past KDM all the fonts for KDE are
missing and half of the desktop icons don't show up


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--- Comment #1 from Michael Lothian <mike at fireburn.co.uk>  2008-01-15
20:05:25 PST ---
Created an attachment (id=13737)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13737)
The Xorg Log


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--- Comment #2 from Michael Lothian <mike at fireburn.co.uk>  2008-01-15
20:06:01 PST ---
Created an attachment (id=13738)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=13738)
My dmesg output


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--- Comment #3 from Maarten Maathuis <madman2003 at gmail.com>  2008-02-01
15:51:32 PST ---
Does this occur with current git?

More importantly, did you load without a tainted kernel (=no nvidia driver ever
loaded), because the blob can mess things up for us?


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--- Comment #4 from Michael Lothian <mike at fireburn.co.uk>  2008-02-02
17:03:28 PST ---
I made sure that the nvidia module was never loaded. The problem was
"fixed" by
changing:

 shared-core/nv40_graph.c in the drm code from 

#define NV41_GRCTX_SIZE (92*1024)

to

#define NV41_GRCTX_SIZE (175*1024)

but that was apparently just a work around. 

I sent in a mmio trace as requested


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--- Comment #5 from Maarten Maathuis <madman2003 at gmail.com>  2008-02-03
11:16:49 PST ---
Could you check if smaller values work as well?

Like 100*1024 and 128*1024?


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--- Comment #6 from Michael Lothian <mike at fireburn.co.uk>  2008-03-23
07:11:43 PST ---
I've just tested it (sorry for the long delay)

100x1024 doesn't work
128x1024 does :D

Would you like any others tested?


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--- Comment #7 from Ben Skeggs <skeggsb at gmail.com>  2008-03-23 07:49:16
PST ---
Maarten, checking smaller values is of little use.  It's already well
established what exactly accounts for the differences in the context sizes
across chips.  As the submitter reports, adjusting to 175*1024 is a
*workaround* until a proper fix is devised.  It's a nice safe number, as the
0x40 NV4x chip has both a large number of vertex pipes, and is unique in that
each per-pipe block is far larger than the other NV4x chipsets.


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--- Comment #8 from Maarten Maathuis <madman2003 at gmail.com>  2008-03-23
08:10:55 PST ---
I know it's only a workaround, but *if* anything gets committed, then i
would
prefer something better than the highest upper bound.


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--- Comment #9 from Ben Skeggs <skeggsb at gmail.com>  2008-03-23 09:24:42
PST ---
Too large doesn't matter.  If you want to use a workaround, you may as well
play it safe :)  The only down-side of a large block of space being reserved is
that we'll run out of PRAMIN for contexts and limit how many channels can be
created.  But, that is another problem that has to be solved regardless.

In that light, I've committed something similar to the original workaround
to
drm git.  This bug should be "resolved" now :)


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Michael Lothian <mike at fireburn.co.uk> changed:

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




--- Comment #10 from Michael Lothian <mike at fireburn.co.uk>  2008-03-24
18:52:04 PST ---
Your fix did the job, the code it totally different now so I'm not quite
sure
what's going on but it works which is the main thing

I'm marking the bug as resolved as you suggested


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