[Bug 41971] New: [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

[Bug 41971] New: [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41971

             Bug #: 41971
           Summary: [kms] Muxless modesetting takes 20 seconds to decide
                    it can't modeset
    Classification: Unclassified
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: mike@fireburn.co.uk


Created attachment 52491
  --> https://bugs.freedesktop.org/attachment.cgi?id=52491
dmesg

My laptop has muxless switchable graphics but it seems to spend >20 seconds
during boot in the radeon drm before handing off to the intel modesetting

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #1 from Mike Lothian <mike@fireburn.co.uk> 2011-10-18 12:19:06 PDT ---
here's my lspci:


0:00.0 Host bridge [0600]: Intel Corporation Device [8086:0104] (rev 09)
00:01.0 PCI bridge [0604]: Intel Corporation Device [8086:0101] (rev 09)
00:01.1 PCI bridge [0604]: Intel Corporation Sandy Bridge PCI Express Root Port
[8086:0105] (rev 09)
00:01.2 PCI bridge [0604]: Intel Corporation Sandy Bridge PCI Express Root Port
[8086:0109] (rev 09)
00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:0116]
(rev 09)
00:16.0 Communication controller [0780]: Intel Corporation Cougar Point HECI
Controller #1 [8086:1c3a] (rev 04)
00:1a.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced Host
Controller #2 [8086:1c2d] (rev 05)
00:1b.0 Audio device [0403]: Intel Corporation Cougar Point High Definition
Audio Controller [8086:1c20] (rev 05)
00:1c.0 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port
1 [8086:1c10] (rev b5)
00:1c.4 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port
5 [8086:1c18] (rev b5)
00:1c.7 PCI bridge [0604]: Intel Corporation Cougar Point PCI Express Root Port
8 [8086:1c1e] (rev b5)
00:1d.0 USB Controller [0c03]: Intel Corporation Cougar Point USB Enhanced Host
Controller #1 [8086:1c26] (rev 05)
00:1f.0 ISA bridge [0601]: Intel Corporation Device [8086:1c49] (rev 05)
00:1f.2 SATA controller [0106]: Intel Corporation Cougar Point 6 port SATA AHCI
Controller [8086:1c03] (rev 05)
00:1f.3 SMBus [0c05]: Intel Corporation Cougar Point SMBus Controller
[8086:1c22] (rev 05)
01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Device
[1002:6741]
09:00.0 Network controller [0280]: Intel Corporation Device [8086:0090] (rev
34)
0a:00.0 Ethernet controller [0200]: Attansic Technology Corp. Device
[1969:1083] (rev c0)
0b:00.0 USB Controller [0c03]: NEC Corporation Device [1033:0194] (rev 04)

Please let me know if you need anything else

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52491|application/octet-stream    |text/plain
          mime type|                            |
  Attachment #52491|0                           |1
           is patch|                            |

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #2 from Mike Lothian <mike@fireburn.co.uk> 2011-10-18 12:35:38 PDT ---
Created attachment 52493
  --> https://bugs.freedesktop.org/attachment.cgi?id=52493
System ACPI Info

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41971

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52491|0                           |1
        is obsolete|                            |

--- Comment #3 from Mike Lothian <mike@fireburn.co.uk> 2011-10-18 12:40:14 PDT ---
Created attachment 52494
  --> https://bugs.freedesktop.org/attachment.cgi?id=52494
New dmesg with debugging

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41971

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52494|0                           |1
        is obsolete|                            |

--- Comment #4 from Mike Lothian <mike@fireburn.co.uk> 2011-10-18 12:52:23 PDT ---
Created attachment 52496
  --> https://bugs.freedesktop.org/attachment.cgi?id=52496
Newest dmesg

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41971

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52496|0                           |1
        is obsolete|                            |

--- Comment #5 from Mike Lothian <mike@fireburn.co.uk> 2011-10-18 13:05:53 PDT ---
Created attachment 52497
  --> https://bugs.freedesktop.org/attachment.cgi?id=52497
Dmesg with added chunks :D

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

Eugeni Dodonov <eugeni@dodonov.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |eugeni@dodonov.net

--- Comment #6 from Eugeni Dodonov <eugeni@dodonov.net> 2011-10-19 04:53:38 PDT ---
@Mike - could you try with the patch from bug #41059, which is at
http://cgit.freedesktop.org/~eugeni/kernel? There is one patch at
http://cgit.freedesktop.org/~eugeni/kernel/commit/?h=edid-i915 and another at
http://cgit.freedesktop.org/~eugeni/kernel/commit/?h=edid-drm, they do the same
thing but on different levels. There is no need to apply them both at the same
time, just one at a time.

Could you check if any of those would fix - or improve - the issue for you?

Thanks!

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #7 from Eugeni Dodonov <eugeni@dodonov.net> 2011-10-19 04:54:59 PDT ---
(I know that you already tested them via my blog post, but I added some small
changes to them - try booting with 'drm.debug=0.04' with both of those patches
now, and attach the dmesg with timing results in both case).

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[Bug 41971] [kms] Muxless modesetting takes 20 seconds to decide it can't modeset

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #8 from Eugeni Dodonov <eugeni@dodonov.net> 2011-10-19 04:55:52 PDT ---
Errrr of course, I meant drm.debug=0x04. In the morning, I guess I type faster
than I mentally spell-check :).

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41971

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[kms] Muxless modesetting   |[kms] Muxless radeon takes
                   |takes 20 seconds to decide  |20 seconds to fetch rom
                   |it can't modeset            |

--- Comment #9 from Alex Deucher <agd5f@yahoo.com> 2011-10-19 06:48:39 PDT ---
(In reply to comment #6)
> @Mike - could you try with the patch from bug #41059, which is at
> http://cgit.freedesktop.org/~eugeni/kernel? There is one patch at
> http://cgit.freedesktop.org/~eugeni/kernel/commit/?h=edid-i915 and another at
> http://cgit.freedesktop.org/~eugeni/kernel/commit/?h=edid-drm, they do the same
> thing but on different levels. There is no need to apply them both at the same
> time, just one at a time.
> 
> Could you check if any of those would fix - or improve - the issue for you?

The problem here has nothing to do with modesetting.  There are no displays
even attached to the radeon.  The delay is due to fetching the rom from acpi. 
I've updated the summary appropriately.

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #10 from Mike Lothian <mike@fireburn.co.uk> 2011-10-26 13:16:58 PDT ---
I was wondering what actions I could take next

Would it be possible to have the switcheroo code detect that the laptop is
muxless and disable the radeon card from the start?

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #11 from Mike Lothian <mike@fireburn.co.uk> 2011-11-02 06:29:06 PDT ---
I've removed the vgaswitcheroo and radeon options from my kernel and my boot
time has returned to normal, as I have a muxless laptop not having the card
available makes no difference just now 

When no module is loaded is the card still drawing power?

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #12 from Alex Deucher <agd5f@yahoo.com> 2011-11-02 06:37:47 PDT ---
(In reply to comment #11)
> 
> When no module is loaded is the card still drawing power?

It depends whether the bios turns it on by default or not.  If it's off, you
are not drawing power.  If it's on, you can turn it off via vgaswitcheroo.

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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--- Comment #13 from Mike Lothian <mike@fireburn.co.uk> 2011-11-02 09:02:00 PDT ---
Is there a way for switcheroo to detect a muxless laptop and automatically
switch it off (if it isn't already)

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

Mike Lothian <mike@fireburn.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mike@fireburn.co.uk

--- Comment #14 from Mike Lothian <mike@fireburn.co.uk> 2011-11-13 19:38:21 PST ---
I just thought I'd add I've now compiled radeon as a module and it only takes 2
seconds to load the BIOS when modprobed after everything else is loaded

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

--- Comment #15 from Alex Deucher <agd5f@yahoo.com> 2012-02-20 07:17:17 PST ---
Is this still an issue with a 3.3 kernel?  There were some fixes to the ACPI rom fetching code.
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=a3f83ab1a717c0e6c2f59a4cfdaa10707cc35c55
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=211fa4fc4e13492151e698d92b0dff56b29928ec
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=de47a9cd62771e3e78954d855d2304fbad4c5a44

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[Bug 41971] [kms] Muxless radeon takes 20 seconds to fetch rom

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--- Comment #16 from Mike Lothian <mike@fireburn.co.uk> 2012-02-21 10:29:55 PST ---
Yes it's still an issue

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https://bugs.freedesktop.org/show_bug.cgi?id=41971

Mike Lothian <mike@fireburn.co.uk> changed:

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

--- Comment #17 from Mike Lothian <mike@fireburn.co.uk> ---
I'm not sure when this was fixed but it's now no longer an issue

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