Nouveau - Jun 2007 - [Bug 11425] New: EXA on GF6200/AGP and different "MigrationHeuristic" schemas

http://bugs.freedesktop.org/show_bug.cgi?id=11425

           Summary: EXA on GF6200/AGP and different
"MigrationHeuristic"
                    schemas
           Product: xorg
           Version: unspecified
          Platform: x86 (IA32)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: randrik at mail.ru
         QAContact: xorg-team at lists.x.org


hardware:

lspci -v
01:00.0 VGA compatible controller: nVidia Corporation GeForce 6200 (rev a1)
(prog-if 00 [VGA])
        Subsystem: ASUSTeK Computer Inc.: Unknown device 81e1
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 20
        Memory at de000000 (32-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        Memory at dd000000 (32-bit, non-prefetchable) [size=16M]
        Expansion ROM at dfde0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
        Capabilities: [44] AGP version 3.0

lspci -vn
01:00.0 Class 0300: 10de:0221 (rev a1)
        Subsystem: 1043:81e1
        Flags: bus master, 66Mhz, medium devsel, latency 32, IRQ 20
        Memory at de000000 (32-bit, non-prefetchable) [size=16M]
        Memory at c0000000 (32-bit, prefetchable) [size=256M]
        Memory at dd000000 (32-bit, non-prefetchable) [size=16M]
        Expansion ROM at dfde0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
        Capabilities: [44] AGP version 3.0

software:
kernel 2.6.21.5
drm git up to and include a27af4c4a665864df09123f177ca7269e48f6171
mesa git 5e4a0f42f243cd5fbc8718660d78705e8c70808f
xf86-video-nouveau git e81c9a29e6d1c6573892df8601f0361c2b09c659

if i set  Option "MigrationHeuristic" in my xorg.conf to
"always" (default) - i
have screen corruption even on Mozilla start. And can easily see rendering
problems after scroll some pages inside mozilla up and down.

if i set this option to "greedy" - i have stable desktop, no problems
with
mozilla (i can load tens pages with heavy graphics usage). but X still crashes
at some point. Also translucency changes not very smooth.

if i set option  "MigrationHeuristic" to "smart" - i have
nice looking and fast
desktop. And memory usage is lowest, according to gkrellm. But if i load many
pages in mozilla , heavy loaded with small pictures - i can see some (text
rendering) problems in gkrellm window and then crash or freeze. (acpi poweroff
work)

and question: as i can see in xorg.0.log and in sources - nouveau use half
available videoram for EXA acceleration. May be option like FBtexPercent will
be useful there?

(screenshots, crash logs and xorg.conf follow shortly ...)


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------- Comment #1 from randrik at mail.ru  2007-06-29 21:33 PST -------
Created an attachment (id=10512)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=10512&action=view)
Mozilla with corrupted page inside

with default "MigrationHeuristic". 


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------- Comment #2 from randrik at mail.ru  2007-06-29 21:36 PST -------
Created an attachment (id=10513)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=10513&action=view)
text problem  in gkrellm

screenshot taken just before crash/freeze. You should open _really_ many pages
with _really_ many pics!


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------- Comment #3 from randrik at mail.ru  2007-06-29 21:37 PST -------
Created an attachment (id=10514)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=10514&action=view)
my working xorg.conf


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------- Comment #4 from randrik at mail.ru  2007-06-29 21:38 PST -------
Created an attachment (id=10515)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=10515&action=view)
current xorg.0.log


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randrik at mail.ru changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #10515|application/octet-stream    |text/plain
          mime type|                            |




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------- Comment #5 from randrik at mail.ru  2007-06-29 21:43 PST -------
Created an attachment (id=10516)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=10516&action=view)
crash log with Option "MigrationHeuristic" "smart"


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------- Comment #6 from castet.matthieu at free.fr  2007-06-30 01:43 PST -------
With a NV17 and default EXA mode, I manage to get screen corruption and after
some time X crash.

So it seems this problem is reproductible also on nv17.


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------- Comment #7 from randrik at mail.ru  2007-06-30 23:04 PST -------
And little more on this.

If i have added option "EXANoDownloadFromScreen" "1" - i
have stable, and
acceptable-fast desktop. (switch to text console takes seconds, but in graphics
mode mozilla and other apps runs fast). 

If i use "EXANoDownloadFromScreen" "1" and default
"MigrationHeuristic"
"always" - i have no screen corruption, but massive, very noticeable
slowdown.


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------- Comment #8 from skeggsb at gmail.com  2007-07-01 02:14 PST -------
There's some changes in latest git that may fix this, they correct all the
rendering issues I see here (C51).


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------- Comment #9 from castet.matthieu at free.fr  2007-07-01 04:26 PST -------
rendering is correct, but on iceape (seamonkey on debian), I got hard lockup
when trying to attach a file in a mail.


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------- Comment #10 from randrik at mail.ru  2007-07-01 07:09 PST -------

ok, now using xf86-video-nouveau git, commit
dff1cce299df636813e8f85109f4556f520620c0

default EXA - no problems so far! Stable and fast! Thanks for fixing this!


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------- Comment #11 from marchesin at icps.u-strasbg.fr  2007-08-31 03:39 PST
-------
So is it fixed ? Can we close the bug now ?


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------- Comment #12 from randrik at mail.ru  2007-08-31 03:41 PST -------
(In reply to comment #11)
> So is it fixed ? Can we close the bug now ?
> 
yes


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marchesin at icps.u-strasbg.fr changed:

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




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