On 08/12/2012 08:29 PM, Daniel Vetter wrote: > On Sun, Aug 12, 2012 at 07:45:05PM +0200, Daniel Wagner wrote: >> Hi Daniel, >> >> On 08/11/2012 11:14 PM, Daniel Vetter wrote: >>> On Sat, Aug 11, 2012 at 04:48:15PM +0200, Paul Menzel wrote: >>>> Am Samstag, den 11.08.2012, 16:05 +0200 schrieb Daniel Wagner: >>>> >>>>> I installed on my shiny new Macbook Air 2012 Fedora 17. After adding >>>>> >>>>> intremap=off >>>>> >>>>> to the kernel arguments, I was able to install the system. The X server >>>>> worked out of the box. This was with a 3.3.4 kernel. >>>>> >>>>> Then I started to upgrade the installation and a newer kernel was >>>>> installed 3.5. After the reboot the screen stayed black. Upgrading to >>>>> Linus' 3.6-rc1 didn't help either. >>>>> >>>>> After some research I have tried now Daniel's tree danvet branch >>>>> drm-intel-next. Still no success. I also found >>>>> https://bugs.freedesktop.org/show_bug.cgi?id=48652 which sounds awfully >>>>> like what I am seeing as symptoms. >>>>> >>>>> Unfortunately, is my graphic trouble debugging skills rather limited. Is >>>>> there anything I could provide to resolve this issue? >>>> >>>> I think there is a fix already [1]. >>> >>> Nope, that's the fix for the new retina macbook pro. Daniel, if you can, >>> please test the latest patch attached to that bug report and reply on the >>> bug report with the result. >> >> Done as you have requested. Unfortunately, the screen is still >> black. But there seems to be a small improvement. I see for a short >> time some kernel boot message before it turns off. > > I've pointed you at the wrong bug report unfortunately. This one is the > right one: > > https://bugzilla.kernel.org/show_bug.cgi?id=45671 > > Please test the "patch v3" on that bug. Applied v3 and I see for a short time kernel messages, then the screen goes black, then I think 2 times the backlight goes on and off and then it stays black without backlight. > Sorry for the confusion. No problem. I happy to test patches. I'll have to create an account on bugzilla.kernel.org to add the test results. cheers, daniel
