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[Launchpad Bug Tracker <1310780@xxxxxxxxxxxxxxxxxx>]

[Expired for xorg (Ubuntu) because there has been no activity for 60
days.]

** Changed in: xorg (Ubuntu)
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1310780

Title:
  2560x1440@55 with HDMI and HD4000 doesn't work anymore (13.10 ->
  14.04)

Status in xorg package in Ubuntu:
  Expired

Bug description:
  Hi,

  after upgrading Ubuntu from 13.10 to the latest version, I'm not
  anymore able to drive my external display with native solution,
  connected via HDMI-DVI-cable. Using the tweak described in
  http://www.notebookcheck.com/2560x14...n.89837.0.html this was
  possible for my ivy-bridge notebook with HDMI-only output. In
  contrast, when finally triggering "xrandr --output HDMI1 --mode
  2560x1440" the display gets shortly blanked with the message "xrandr:
  Configure crtc 0 failed". In Xorg.log the following lines can be
  found:

  [ 27635.065] (II) intel(0): resizing framebuffer to 2560x1440
  [ 27635.067] (II) intel(0): switch to mode 1920x1200@60.0 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
  [ 27635.099] (II) intel(0): switch to mode 2560x1440@54.9 on HDMI1 using pipe 0, position (0, 0), rotation normal, reflection none
  [ 27635.496] (EE) intel(0): failed to set mode: Invalid argument
  [ 27635.548] (II) intel(0): resizing framebuffer to 1920x1200

  Any idea for new valid arguments or additional changes required?

  Thanks in advance,
  Andreas

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