[Bug 41467] New: No display with switcheroo

[Bug 41467] New: No display with switcheroo

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41467

           Summary: No display with switcheroo
           Product: DRI
           Version: XOrg CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: mike@fireburn.co.uk


Created an attachment (id=51984)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51984)
lspci -nn

Hi

I've gotten a new laptop - HP Envy 14 2002ea

I've configured my kernel for the Intel and Radeon graphics and enabled the
switcheroo option too

When booting the kms screen with Tux at the top shows for a split second before
going blank - fortunately I can SSH in - also nomodeset works

I'm going to attach the lspci, dmesg and xorg.log for both set as the default

I've also changed the bios setting between Dynamic and Fixed but it's made no
difference

If you need any more information please let me know

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #1 from Michael Lothian <mike@fireburn.co.uk> 2011-10-04 16:46:27 PDT ---
Created an attachment (id=51985)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51985)
dmesg

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[Bug 41467] No display with switcheroo

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #2 from Michael Lothian <mike@fireburn.co.uk> 2011-10-04 16:47:03 PDT ---
Created an attachment (id=51986)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51986)
xorg.log.0 Intel

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #3 from Michael Lothian <mike@fireburn.co.uk> 2011-10-04 16:47:35 PDT ---
Created an attachment (id=51987)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=51987)
xorg.log.0 Radeon

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #4 from Michael Lothian <mike@fireburn.co.uk> 2011-10-04 16:49:18 PDT ---
I should probably mention that I'm running git master from Linus' tree last
updated 6 hours ago with your fixes (I've tried with and without those fixes)

Unfortunately as this is a new laptop I don't know if this is a regression or
not

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #51985|text/x-log                  |text/plain
          mime type|                            |
  Attachment #51985|0                           |1
           is patch|                            |

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> 2011-10-04 17:01:26 PDT ---
You have a muxless laptop which means the discrete card is not connected to any
displays.  You won't be able to use the discrete card until the xserver gets
the ability to decouple rendering and display (i.e., rendering with one GPU,
displaying with another).  It's a huge amount of work and won't be supported
any time some.

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #6 from Michael Lothian <mike@fireburn.co.uk> 2011-10-04 18:33:20 PDT ---
How do I use the Intel graphics as default?

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #7 from Michael Lothian <mike@fireburn.co.uk> 2011-10-05 01:20:52 PDT ---
OK I've tried only compiling the intel drm on it's own and also the radeon drm
on it's own, both with and without vgaswitcheroo and each of those were tested
chaning the bios options between fixed and dynamic

Only when both are compiled in and vgaswitcheroo enable do I get a quick flash
of a KMS screen before going blank

Intel only goes blank, looks like it is mode setting however

Radeon only doesn't modeset but segfaults unless nomodeset is passed

I'm now running X using the mesa driver :-(

I can live without the power of the Radeon card until xorg or wayland supports
render and display on two GPUs, I just need to know how to force Intel to do
modesetting

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #8 from Cedric Sodhi <manday@gmx.net> 2011-10-05 01:36:13 PDT ---
Is this perhaps a duplicate of #41306 ?

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[Bug 41467] No display with switcheroo

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--- Comment #9 from Michael Lothian <mike@fireburn.co.uk> 2011-10-05 03:16:22 PDT ---
I'll try the lid tonight - is there any other way to force the backlight on if
it is the issue?

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #10 from Cedric Sodhi <manday@gmx.net> 2011-10-05 04:43:00 PDT ---
I know of no reliable way to bring the backlight on, particularly because the
actual problem has not yet been determined. However, if you have an external
monitor you may try to attach it to VGA on boot and see whether you can see the
clone there. If so, you can at least experiment with xrandr, as I described in
the bug. Read it carefully, it also is relevant how the laptop is currently
supplied [1]. If it turns out to be the same bug as Bug #41306 , please close
this one here as a duplicate so that efforts are concentrated and the number of
affected users can clearly be seen.

[1] http://marc.info/?l=linux-acpi&m=131749369005052&w=2

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #11 from Alex Deucher <agd5f@yahoo.com> 2011-10-05 06:25:01 PDT ---
Please open a new bug for backlight problems otherwise things will get confused
as this started out as a vgaswitcheroo bug.

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

Alex Deucher <agd5f@yahoo.com> changed:

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

--- Comment #12 from Alex Deucher <agd5f@yahoo.com> 2011-10-05 06:33:14 PDT ---


*** This bug has been marked as a duplicate of bug 37528 ***

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[Bug 41467] No display with switcheroo

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https://bugs.freedesktop.org/show_bug.cgi?id=41467

--- Comment #13 from Michael Lothian <mike@fireburn.co.uk> 2011-10-05 19:51:32 PDT ---
Yes it was the backlight - fortunately for me the buttons on my laptop work at
increasing the brightness thanks to hp-wmi 

Now I just need to figure out how to make it always boot with the backlight on

Thanks for the help

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