[Bug 66521] New: [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries, giving up

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=66521

          Priority: medium
            Bug ID: 66521
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: [drm:intel_dp_i2c_aux_ch] *ERROR* too many retries,
                    giving up
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: wsun07 at gmail.com
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 81912
  --> https://bugs.freedesktop.org/attachment.cgi?id=81912&action=edit
dmesg with drm.debug=0xe in kernel command line

I have a DELL XPS13 laptop and an external monitor. They used to work well on
linux kernel 3.8. Recently, I upgraded to kernel 3.9 and found the resolution
of the external monitor could not be configured correctly. I checked kern.log
file and found a lot of error messages look this:

Jul  2 15:27:40 debian kernel: [   39.181113] [drm:intel_dp_i2c_aux_ch] *ERROR*
too many retries, giving up

I downloaded the latest kernel from drm-intel-nightly
(drm-intel-a59485486882b9867bdcb1fe41cfdcba291c6585,July2nd,2013). However, the
issue is still there. The dmesg information with drm.debug=0xe is attached. 

Since this issue was also reported by others and it was there for more than
three months, hope it can be set as a high priority investigation from the
development team.

Please let me know if you want me to try more patches.

Thanks,
Wei

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20130702/fe0219da/attachment.html>