<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - [DP] [SKL] 5k tiled dual DP (two-pipe, two-port) display sync issues" href="https://bugs.freedesktop.org/show_bug.cgi?id=97244#c25">Comment # 25</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - [DP] [SKL] 5k tiled dual DP (two-pipe, two-port) display sync issues" href="https://bugs.freedesktop.org/show_bug.cgi?id=97244">bug 97244</a> from <a class="email" href="mailto:jani.nikula@intel.com" title="Jani Nikula <jani.nikula@intel.com>"> Jani Nikula</a> <pre>(In reply to Ricardo Madrigal from <a href="show_bug.cgi?id=97244#c24">comment #24</a>) > I just tried to reproduce the problem with following configuration: > > KBL NUC, using a MST sunix conected with a mini-DP to DP and 2 connectors > DP-DP with 2 external monitor (acer) 3840 x 2160 (4K). ... > Yes, this is still a problem. > > Using 4K, you can connect only one monitor first, change resolution to > 1920x1080, then connect the other monitor an change the resolution to the > same (1920x10180) So I don't know what you're observing, but the original report is about a very specific issue. The UP2715K display has two DP inputs to support 5k in a single display [1]. From the driver perspective, at least currently, they are treated as two separate displays, while the display may have stricter requirements about e.g. PLL syncing. I would be rather hesitant to make conclusions about tests done with two physically separate displays. [1] <a href="http://www.dell.com/ae/business/p/dell-up2715k-monitor/pd">http://www.dell.com/ae/business/p/dell-up2715k-monitor/pd</a></pre> </div> <hr> You are receiving this mail because: <ul> <li>You are on the CC list for the bug.</li> <li>You are the assignee for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>