<html> <head> <base href="https://bugs.freedesktop.org/" /> </head> <body> <div> <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - Second screen unusable on R7 250E" href="https://bugs.freedesktop.org/show_bug.cgi?id=79173#c16">Comment # 16</a> on <a class="bz_bug_link bz_status_RESOLVED bz_closed" title="RESOLVED NOTABUG - Second screen unusable on R7 250E" href="https://bugs.freedesktop.org/show_bug.cgi?id=79173">bug 79173</a> from <a class="email" href="mailto:ancoron@chaoslayer.de" title="Ancoron <ancoron@chaoslayer.de>"> Ancoron</a> <pre>Just to report back: Got it to work with an active DisplayPort to dual-link-DVI adapter (a StarTech DP2DVID2). However, EDID is lost and probed modes are completely wrong (fallback defaults?): EDID for output DisplayPort-0 Printing probed modes for output DisplayPort-0 Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz e) Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz e) Modeline "800x600"x56.2 36.00 800 824 896 1024 600 601 603 625 +hsync +vsync (35.2 kHz e) Modeline "848x480"x60.0 33.75 848 864 976 1088 480 486 494 517 +hsync +vsync (31.0 kHz e) Modeline "640x480"x59.9 25.18 640 656 752 800 480 489 492 525 -hsync -vsync (31.5 kHz e) To solve this I took the mode lines from the DVI connected monitor and manually specified it in the xorg.conf: EDID for output DisplayPort-0 Not using mode "1024x768" (hsync out of range) Not using mode "800x600" (hsync out of range) Not using mode "800x600" (vrefresh out of range) Not using mode "848x480" (hsync out of range) Not using mode "640x480" (hsync out of range) Printing probed modes for output DisplayPort-0 Modeline "2560x1600@60"x59.9 268.00 2560 2608 2640 2720 1600 1603 1609 1646 +hsync +vsync (98.5 kHz UP) Modeline "1280x800@60"x59.9 71.00 1280 1328 1360 1440 800 803 809 823 +hsync -vsync (49.3 kHz)</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> </ul> </body> </html>