On Thu, 02 Jun 2016 22:14:33 +0200 Mark wrote:
Hi
I recently updated my computer with a Asus z97a motherboard and a i7-5775C processor with a Iris Pro 6200 GPU. That's the only GPU I have in the computer. Now the monitor that I use comes with integrated loudspeakers that I would like to use and if I connect my monitor with the motherboard over HDMI I have both video and audio. That's nice. But if I try to use DisplayPort instead I get no audio. The reason I would like have DP instead of HDMI is that the former can drive the monitor at 60Hz instead of 50Hz. In Gnome Settings -> Sound the options are the same regardless of which cable I use.
Gnome Settings is probably not enough. You should try pavucontrol for routing the output to the DisplayPort.
--Frank