pangolin 1360x768 and 1280x768 looks the same on an integrated Intel HD 4000 Ivy Brigde

[Feliciano Chavez]

I have this new hardware: Celeron Ivy Bridge on a B75 chipset, and a non-PnP Sharp TV/LCD connected via VGA1 port.

When finished installing, I only found 1024x768 and 800x600 as options, so I went through the cvt and/or gtf-> modeline -> xrandr process and was able to add the 1280x768 and the 1360x768 resolutions (@60Hz) my TV/monitor supports. I even made the .xprofile script for that. But the resolutions are not working right:

If I set 1024x768 or 1280x768, the monitor picks it as it should, but if I set 1360x768, the monitor picks it as 1280x768.

I thought it could be my KVM (although works fine on the same machine with Windows 7 and Windows XP), so I removed the KVM, and no difference.

Using fresh installed ubuntu 12.04.2 64bits, up to date.
Gigabyte GA-B75M-DV3, Sharp LC-19SB27UT.
Right:
"1280x768" 79.50 1280 1344 1472 1664 768 771 781 798 -hsync +vsync
"1280x720" 74.50 1280 1344 1472 1664 720 723 728 748 -hsync +vsync
Wrong:
"1360x768_1" 84.75 1360 1432 1568 1776 768 771 781 798 -hsync +vsync
"1360x768_2" 84.72 1360 1424 1568 1776 768 769 772 795 -HSync +Vsync

EDIT. Workaround found:
Someboby pulled out an EDID modeline that fills the screen, but after reboot forced me to reinstall xorg, and X is not working right after resuming from suspend (mouse arrow over black 1024x768 backbground).
ModeLine "1360x768" 85.50 1360 1424 1536 1792 768 771 778 795 -HSync -VSync

[Ubuntu Foundations Team Bug Bot (crichton)]

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[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue you are reporting is an upstream one and it would be nice if somebody having it could send the bug to the developers of the software by following the instructions at https://wiki.ubuntu.com/Bugs/Upstream/GNOME. If you have done so, please tell us the number of the upstream bug (or the link), so we can add a bugwatch that will inform us about its status. Thanks in advance.