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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [regression] using vgaswitcheroo intel i915 goes to black."
href="https://bugs.freedesktop.org/show_bug.cgi?id=61115#c12">Comment # 12</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - [regression] using vgaswitcheroo intel i915 goes to black."
href="https://bugs.freedesktop.org/show_bug.cgi?id=61115">bug 61115</a>
from <span class="vcard"><a class="email" href="mailto:miguel.negrao@friendlyvirus.org" title="Miguel Negrão <miguel.negrao@friendlyvirus.org>"> <span class="fn">Miguel Negrão</span></a>
</span></b>
<pre>I have a macbookpro8,2 and I'm in the exact same situation as reported above.
Switchting from DIS to IGD causes the screen to go completely black (nothing is
seen even with a torch), going back (blindly) from IGD to DIS brings the screen
back.
I'm booting using EFI stub via rEFInd. It makes no difference if I add the
flags "i915.lvds_channel_mode=2 i915.modeset=1 i915.lvds_use_ssc=0".
I think this bug is already reported in the kernel bug tracker:
<a href="https://bugzilla.kernel.org/show_bug.cgi?id=56911">https://bugzilla.kernel.org/show_bug.cgi?id=56911</a></pre>
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