Nouveau - Sep 2007 - [Bug 12368] New: No valid modes on a QUADRO NVS 140M

http://bugs.freedesktop.org/show_bug.cgi?id=12368

           Summary: No valid modes on a QUADRO NVS 140M
           Product: xorg
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau at lists.freedesktop.org
        ReportedBy: elias.naur at gmail.com
         QAContact: xorg-team at lists.x.org


When running nouveau on a thinkpad t61 with a quadro nvs 140m card, it fails to
find any valid modes ((EE) NOUVEAU(0): 1443: No valid modes.).


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http://bugs.freedesktop.org/show_bug.cgi?id=12368





------- Comment #1 from elias.naur at gmail.com  2007-09-08 15:15 PST -------
Created an attachment (id=11474)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11474&action=view)
xorg log


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------- Comment #2 from madman2003 at gmail.com  2007-09-08 15:33 PST -------
The bios is not detected, this is the initial problem that needs solving.


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elias.naur at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #11474|0                           |1
        is obsolete|                            |




------- Comment #3 from elias.naur at gmail.com  2007-09-11 13:31 PST -------
Created an attachment (id=11523)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11523&action=view)
Xorg.0.log

Today, a freshly compiled nouveau_drv.so gives me a new crash.


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elias.naur at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |elias.naur at gmail.com




------- Comment #4 from elias.naur at gmail.com  2007-09-11 13:33 PST -------
I uploaded a new log from the latest nouveau_drv.so. The new crash is:

/usr/lib/xorg/modules/drivers//nouveau_drv.so(nv30UpdateArbitrationSettings+0x23)
[0x2ac7262f1823]
4: /usr/lib/xorg/modules/drivers//nouveau_drv.so(NVCalcStateExt+0x41c)
[0x2ac7262f277c]
5: /usr/lib/xorg/modules/drivers//nouveau_drv.so(NVDACInit+0x44f)
[0x2ac7262ea60f]
6: /usr/lib/xorg/modules/drivers//nouveau_drv.so [0x2ac7262ee5d5]
7: /usr/lib/xorg/modules/drivers//nouveau_drv.so [0x2ac7262f002c]
8: /usr/lib/xorg/modules/drivers//nouveau_drv.so [0x2ac7262f050a]
9: /usr/bin/X11/X(AddScreen+0x222) [0x439522]
10: /usr/bin/X11/X(InitOutput+0x268) [0x468a48]
11: /usr/bin/X11/X(main+0x275) [0x439d25]
12: /lib/libc.so.6(__libc_start_main+0xf4) [0x2ac72413bb44]
13: /usr/bin/X11/X(FontFileCompleteXLFD+0x229) [0x439209]

it seems to involve the nvGetClocks call in line 694 in nv_hw.c.


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------- Comment #5 from elias.naur at gmail.com  2007-09-11 13:51 PST -------
Digging into nvGetClocks, the crash happens at line 191 where *MClk is
computed:

      *MClk = ((N * NB * pNv->CrystalFreqKHz) / (M * MB)) >> P;

In my case, pll had the value 0x0b01, causing MB to evaluate to zero, thus
causing a divide by zero error.


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------- Comment #6 from elias.naur at gmail.com  2007-09-13 09:45 PST -------
Created an attachment (id=11535)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11535&action=view)
Fix BIOS location on g80s

This patch, mostly lifted from nv fixes the missing bios problem on my card


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elias.naur at gmail.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #11523|0                           |1
        is obsolete|                            |




------- Comment #7 from elias.naur at gmail.com  2007-09-13 09:46 PST -------
Created an attachment (id=11536)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=11536&action=view)
xorglog after patch applied


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elias.naur at gmail.com changed:

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




------- Comment #8 from elias.naur at gmail.com  2007-09-16 03:11 PST -------
Latest nouveau updates from nv makes this bug obsolete (I now get X up on the
screen, although somwhat garbled)


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--- Comment #9 from Allan Sandfeld <kde at carewolf.com> 2011-01-25
07:59:24 PST ---
I had no valid modes by default on my Thinkpad R61 (neither 1680x1050 internal
or standard external 1920x1080p was working by default). The only way to start
X up was to feed it manually generated modelines.

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