[Bug 89731] New: System doesn't boot on muxed IntelHD + HD5650

[Bug 89731] New: System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

            Bug ID: 89731
           Summary: System doesn't boot on muxed IntelHD + HD5650
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.17.4-301.fc21.x86_64
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: and.bernabei@gmail.com
        Regression: No

Created attachment 160521
  --> https://bugzilla.kernel.org/attachment.cgi?id=160521&action=edit
journal log

I installed Fedora21 (also tried updating the packages) but my system doesn't
boot at all when in "Switchable" mode in BIOS.

The only way to have a successful boot is to use the VESA driver (nomodeset),
or using the "Discrete" BIOS vga mode.

You can find the journal log attached, in contains useful call traces.

I am available to help with the debugging of this issue ;)

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #1 from Andrea <and.bernabei@gmail.com> ---
A few details on the machine:

Acer 5820TG, it's got an Intel HD first gen + AMD radeon HD5650.

It is a muxed switchable graphics system as far as I know

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Looks like a duplicate of bug 61891.  acpiphp is trying to remove the driver
when the driver powers down the card because it thinks the card has been
removed.

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #3 from Alex Deucher <alexdeucher@gmail.com> ---
see also:
https://bugs.freedesktop.org/show_bug.cgi?id=88927

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Can you try the latest patch on bug 61891?

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #5 from Lorenzo S. <lorenzo.stanco@gmail.com> ---
Just for the record, I'm on Acer 4820TG with ATI Mobility Radeon HD5470 and I'm
experiencing the same exact issue described in
https://bugs.freedesktop.org/show_bug.cgi?id=88927

I've not tried suggested patch because I'm not practical about kernel
recompiling, and I'm on Xubuntu 15.04 with kernel 3.19.0-15-generic. Anyway I
reported some logs and infos on my comment there, hope it can helps:
https://bugs.freedesktop.org/show_bug.cgi?id=88927#c4

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #6 from Alex Deucher <alexdeucher@gmail.com> ---
Please try the latest patch on:
https://bugzilla.kernel.org/show_bug.cgi?id=61891

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[Bug 89731] System doesn't boot on muxed IntelHD + HD5650

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=89731

--- Comment #7 from Lorenzo S. <lorenzo.stanco@gmail.com> ---
(In reply to Alex Deucher from comment #6)
> Please try the latest patch on:
> https://bugzilla.kernel.org/show_bug.cgi?id=61891

Sorry for the delay, I just tried it and looks like it's working! Great!

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