Andy Fraley, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report by executing the following in a terminal: ubuntu-bug xorg
Please ensure you have xdiagnose installed, and that you click the Yes button for attaching additional debugging information. For more on this, please see the official Ubuntu documentation: Ubuntu X.Org Team, Ubuntu Bug Control, and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette When opening up the new report, please feel free to subscribe me to it. Please note, not filing a new report will delay your problem being addressed as quickly as possible. Thank you for your understanding. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1215449 Title: triple monitor support not working on HD 4600 Status in X.org xf86-video-intel: Fix Released Status in “xserver-xorg-video-intel” package in Ubuntu: Incomplete Bug description: I have a Gigabyte GA-H87N-wifi motherboard, which explicitly supports 3 monitors at the same time from the motherboards' onboard graphics (2x HDMI, 1x DVI). The CPU is an Intel 4570S with HD4600 graphics (also supporting 3 heads at the same time). However, I can only get 2 monitors (any 2, but not all 3) working. All monitors are identical 1600x1200 (NEC LCD2070NX). The KDE systemsettings GUI helpfully shows icons for all 3 monitors, but one is always greyed out, and attempting to enable it emits "Failed to set mode: Invalid argument" in Xorg.0.log. Xrandr compians "Configure crtc 2 failed". However, it's clear that the graphics hardware can handle 3 outputs, since it refers to "pipe 0, pipe 1 and pipe 2" in the logs. Google doesn't show anything very helpful, except to warn that in older graphics hardware (definitely not this motherboard) there may be more output connectors than graphics pipelines, and that in the HD4600 there are only 2x PLL, so 2 of the monitors need to be identically clocked (as they are). This also affects the xorg-edgers packages, as of yesterday, so it seems to be an upstream problem. Xorg.0.log attached. Thanks for your help - please let me know if there's anything I can do to assist in debugging. To manage notifications about this bug go to: https://bugs.launchpad.net/xserver-xorg-video-intel/+bug/1215449/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
