[Bug 26349] New: nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[Bug 26349] New: nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349

           Summary: nouveau_hybrid_setup: disables a discrete NVS 3100m on
                    ThinkPad T410
           Product: xorg
           Version: git
          Platform: All
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
        AssignedTo: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
        ReportedBy: pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org
         QAContact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org


steps to reproduce:
 load the nouveau module (e.g. start fedora install, or so)

result:
 black screen & garbage in lspci

expected result:
 kms init + hi-res cnsole

explanation:

the module fails with the message
  [drm] nouveau 0000:01:00.0: _DSM hardware status gave 0x30040e3
  [drm] nouveau 0000:01:00.0: Unsupported chipset 0xffffffff

after a failed probe of the card, that disables the card:

01:00.0 VGA compatible controller: nVidia Corporation Device 0a6c (rev a2)
(prog-if 00 [VGA controller])
        Subsystem: Lenovo Device 2142
        Flags: bus master, fast devsel, latency 0, IRQ 11
        Memory at cc000000 (32-bit, non-prefetchable) [size=16M]
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at ce000000 (64-bit, prefetchable) [size=32M]
        I/O ports at 2000 [size=128]
        [virtual] Expansion ROM at cd000000 [disabled] [size=512K]
        ...


turns into 

01:00.0 VGA compatible controller: nVidia Corporation Device 0a6c (rev ff)
(prog-if ff)
        !!! Unknown header type 7f


After changing  (result & 0x1) to (!(result & 0x1)) in nouveau_hybrid_setup
everything works as expected.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349


Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED




--- Comment #1 from Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>  2010-01-31 15:26:04 PST ---
Is this a hybrid graphics system?


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #2 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-01 03:49:37 PST ---
(In reply to comment #1)
> Is this a hybrid graphics system?
> 

Im' sorry, I forgot that last part of my post...

As far as I know it is something in between a real hybrid an just the discrete
graphics: the NVS 3100m is built on the mainboard, while there is Intel's GPU
on the Arrandale CPU (connected through QPI AFAIK). At lest it should be there
-  I have neither seen it in the device manager in windows, nor in lspci.
Windows 7 can switch to "low power graphics" though...

( Does anybody know about these Arrandale GPU's? )


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #3 from Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>  2010-02-01 04:52:44 PST ---
Ok - can you install the pmtools package and run the acpidump command as root,
then attach the output?


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #4 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-01 05:28:22 PST ---
Created an attachment (id=32966)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=32966)
acpidump


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #5 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-01 05:30:26 PST ---
Created an attachment (id=32967)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=32967)
lspci before loading nouveau


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #6 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-01 06:03:55 PST ---
Created an attachment (id=32969)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=32969)
acpidump

I screwed my BIOS configuration with VT-d (and did no notice it), so the fist
dump was probably no the right one...


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349


Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #32966|0                           |1
        is obsolete|                            |




-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #7 from Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>  2010-02-01 15:30:56 PST ---
Created an attachment (id=32984)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=32984)
Fix nouveau state detection

Can you try this patch?


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #8 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-04 14:26:48 PST ---
(In reply to comment #7)
> Created an attachment (id=32984)
 --> (http://bugs.freedesktop.org/attachment.cgi?id=32984) [details]
> Fix nouveau state detection
> 
> Can you try this patch?
> 

I tested it on 2.6.33-rc6 and it worked for me, thanks!
(should I test it on git too?)


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #9 from Matthew Garrett <mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org>  2010-02-04 14:29:01 PST ---
No, that should be fine. I'll test it on the machine I have here and then send
it upstream.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349





--- Comment #10 from Pavel S. <pav_s-KuiJ5kEpwI6ELgA04lAiVw@public.gmane.org>  2010-02-09 01:57:24 PST ---
(In reply to comment #9)
> No, that should be fine. I'll test it on the machine I have here and then send
> it upstream.
> 

I have some news, which prove some assumptions about T410:
although there is that Intel GPU on the CPU, it is not activated, and cannot be
used in any way (AFAIK it is not connected to the mainboard so it cannot output
anything). This means that this Thinkpad does not have hybrid graphics.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.

[Bug 26349] nouveau_hybrid_setup: disables a discrete NVS 3100m on ThinkPad T410

[bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ]

http://bugs.freedesktop.org/show_bug.cgi?id=26349


Ben Skeggs <skeggsb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> changed:

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




--- Comment #11 from Ben Skeggs <skeggsb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>  2010-02-09 20:12:09 PST ---
I've also tested this on T410, and after talking to Matthew, committed the fix.


-- 
Configure bugmail: http://bugs.freedesktop.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the assignee for the bug.