[Bug 67950] [ivb regression][bisect] 3.10: i915 blanks eDP panel when CSM is disabled in UEFI

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67950

Michael Shigorin <mike at altlinux.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW
            Summary|[ivb regression][bisect]    |[ivb regression][bisect]
                   |3.10: i915 blanks eDP panel |3.10: i915 blanks eDP panel
                   |(backlight set to 0 and     |when CSM is disabled in
                   |further ineffective)        |UEFI

--- Comment #5 from Michael Shigorin <mike at altlinux.org> ---
(In reply to comment #2)
> could you please verify any of http://en.altlinux.org/Regular#main
> live images which happen to use the same 3.10.5 by now?
Maybe this helps: today's snapshot including 3.10.6 just works on my UX31A in
both BIOS and UEFI modes *if* CSM is enabled in firmware; disabling Boot >
Launch CSM triggers the bug.

The images are UEFI/BIOS, CD/Flash hybrid (just dd it onto a stick).

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