2 Replies Latest reply on Aug 12, 2016 5:41 AM by smg998

    HD 5450 showing same output on both display port connected, daisychained monitors

    smg998

      VisionTek Radeon HD5450 PCIE512M , dual DVI outputs, one DP output

      Dell Studio 540 Desktop

      Windows 10 64bit

      AMD Catalyst Control Center 2015.1104.1643.30033

      2D Driver 8.01.01.1500

      Dell U2515H, Displayport connected to miniDP of graphics card, 2560x1440@60p Hz

      Dell U2515H, Displayport daisychained off first monitor (above), 2560x1440@60p Hz

      8GB RAM

       

      I connected a second Dell monitor via the DisplayPort cable to the DP output of the first Dell monitor. I get identical output to both monitors.

      I click on Detect in Display settings but it only lists one monitor as detected.

      I click on Identify in Display settings and it shows a large '1' on both monitors.

      I want to get both monitors detected, so that when I click on Identify a '2' appears on the second monitor.

      I have tried with no success, the following:

      -Rebooting

      -Enabling/Disabling the DP 1.2 setting on each monitor

      -Dropping the resolution of both monitors to 1920x1080 to reduce the bandwidth in case DP 1.2 wasn't supported by the graphics card.

       

      I suspect that the graphics card doesn't support daisychaining but if that was the case why does it show output on the second monitor?

       

      Any help gratefully received.