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Message #101510
[Bug 1310780] Re: 2560x1440@55 with HDMI and HD4000 doesn't work anymore (13.10 -> 14.04)
Andreas Kemper, this bug was reported a while ago and there hasn't been
any activity in it recently. We were wondering if this is still an
issue? If so, could you please test for this with the latest development
release of Ubuntu? ISO images are available from
http://cdimage.ubuntu.com/daily-live/current/ .
If it remains an issue, could you please run the following command in
the development release from a Terminal as it will automatically gather
and attach updated debug information to this report:
apport-collect -p xorg 1310780
Please ensure you have xdiagnose installed, and that you click the Yes
button for attaching additional debugging information. As well, please
note given that the information from the prior release is already
available, doing this on a release prior to the development one would
not be helpful.
Thank you for your understanding.
Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs
** Changed in: xorg (Ubuntu)
Importance: Undecided => Low
** Changed in: xorg (Ubuntu)
Status: New => Incomplete
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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:
Incomplete
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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