[Bug 57811] New: Can not detect the resolution of the external monitor after upgrade to 3.9.1

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=57811

           Summary: Can not detect the resolution of the external monitor
                    after upgrade to 3.9.1
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.9.1
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: high
          Priority: P1
         Component: Video(DRI - Intel)
        AssignedTo: intel-gfx-bugs at lists.freedesktop.org
        ReportedBy: wsun07 at gmail.com
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No


Hi there,

I have a DELL XPS 13 laptop and it supported external monitor without any
problem before when I was using kernel 3.8. Two days ago, I upgraded the kernel
to 3.9 and I could not set up the resolution for the external monitor
correctly. Today, I tried 3.9.1 and got the result. I checked the syslog and
found the following error message:
"May  8 15:11:24 debian kernel: [ 5772.815695] [drm:intel_dp_i2c_aux_ch]
*ERROR* too many retries, giving up".

Please let me know if you need more information.

Thanks,
Wei

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