[Bug 90617] [HSW IPS] Black screen switching to a VT

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=90617

Ander Conselvan de Oliveira <conselvan2 at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[Haswell HD4400] Black      |[HSW IPS] Black screen
                   |screen switching to a VT    |switching to a VT

--- Comment #16 from Ander Conselvan de Oliveira <conselvan2 at gmail.com> ---
(In reply to Cesare Leonardi from comment #13)
> Instead adding i915.enable_ips=0 to kernel command line works and resolve
> the problem for me.

Looks very similar to bug 85583. Could you give the following patch a try?

http://patchwork.freedesktop.org/patch/50675/

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