<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <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 <a class="email" href="mailto:miguel.negrao@friendlyvirus.org" title="Miguel Negrão <miguel.negrao@friendlyvirus.org>"> Miguel Negrão</a> <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> </div> <hr> You are receiving this mail because: <ul> <li>You are the QA Contact for the bug.</li> <li>You are the assignee for the bug.</li> </ul> </body> </html>