Public bug reported: My Ubuntu (14.04 LTS) desktop used to have an Intel 6700K CPU and I have been using the built in HD Graphics 530 GPU to drive 3 external displays - via DP, HDMI and DVI on the motherboard (AsRock Extreme4).
at some point, I upgraded the CPU to an Intel 7700K, and I realized that the computer can not output to 3 displays anymore. using xrandr -q, I can only see two connections - HDMI and DP, but the DVI output is not listed, nor can be activated. Based on this intel's page, HD630 GPU is supposed to support 3 outputs, https://www.intel.com/content/www/us/en/support/articles/000025672 /graphics-drivers.html I am wondering if this is a known issue, or if there is a version of the xorg intel driver that support 3 outputs for HD 630? my intel driver is provided by xserver-xorg-video-intel-lts-xenial version 2:2.99.917+git20160325-1ubuntu1~trusty1 thanks, let me know if there is a workaround. ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1764924 Title: Intel HD Graphics 630 can not use three displays but HD 530 can To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1764924/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
