[Bug 61861] New: ThinkPad T420 + kernel 3.8.x + external VGA display == wrong resolution

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=61861

          Priority: medium
            Bug ID: 61861
          Assignee: intel-gfx-bugs at lists.freedesktop.org
           Summary: ThinkPad T420 + kernel 3.8.x + external VGA display ==
                    wrong resolution
        QA Contact: intel-gfx-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: toralf.foerster at gmx.de
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Intel
           Product: DRI

Created attachment 75963
  --> https://bugs.freedesktop.org/attachment.cgi?id=75963&action=edit
dmesg (good) kernel 3.7.10

It is a (small) regression to 3.7.10 with intel integrated graphics i915
- but nevertheless :

With an external VGA display (1680x1050) and a closed internal LVDS1
display (1440x900) the external display starts X11 with 1440x900 - for
kernel 3.7.x.

With 3.8.2 (and .1) now the external display is driven with just 800x600.

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