[Bug 70331] New: [Regression] Incorrect resolution reported for monitor

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=70331

            Bug ID: 70331
           Summary: [Regression] Incorrect resolution reported for monitor
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.13
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: post+kernel at ralfj.de
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 125381
  --> https://bugzilla.kernel.org/attachment.cgi?id=125381&action=edit
"xrandr -q" with linux 3.10

With current kernels, the tools concerning monitor resolutions (in my case,
xrandr) claim that a resolution is supported by my monitor, which it does not
actually support: 1920x1080. Setting that resolution results in the screen
going black and asking me to properly set up the resolution.

The errornous resolution appears in "xrandr -q" output or kernel 3.12 and 3.13,
but it does not appear with kernel 3.10, 3.4 and 3.2. I attached the xrandr
output for both linux 3.10 and 3.12.

$ xrandr -v
xrandr program version       1.4.1
Server reports RandR version 1.4
I am using Debian testing with Xorg 1.14.5, Mesa 9.2.2.
I attached the output of "sudo get-edid | parse-edid". If there's any further
information you need, please let me know.

My monitor is a Dell U2412M, a 24" screen with a native resolution of
1920x1200. It is attached via a DVI-HDMI cable to the HDMI port of the HD3000
in my Core i5-2450M.

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