[Bug 100001] New: Can't Change Resolution on MacBook w/ Hybrid Graphics and Nouveau

bugzilla-daemon at bugzilla.kernel.org bugzilla-daemon at bugzilla.kernel.org
Tue Jun 16 10:17:08 PDT 2015


            Bug ID: 100001
           Summary: Can't Change Resolution on MacBook w/ Hybrid Graphics
                    and Nouveau
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.16 & 3.19
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri at kernel-bugs.osdl.org
          Reporter: dmrickert at gmail.com
        Regression: No

When changing the resolution from the native display, the screen goes black and
does not revert to the last setting.  At this point, a reboot is required to
fix it.

I have tested on multiple Macbooks, if it does not have an NVIDIA graphics card
than there is no problem.  I'm booting 14.04 off of a USB stick and using the
Nouveau drivers.  I've seen this with both the 3.16 and 3.19 kernels.

Steps to Reproduce:
-On a MacBook Pro with hybrid graphics, boot into a fresh Ubuntu 14.04
installation with kernels 3.16 or 3.19.
-System Settings > Displays > Pick a new resolution

Also happens if you use xrandr from the command line.

Additional Information:
-My problem seems to be identical to this user

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