<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)" href="https://bugs.freedesktop.org/show_bug.cgi?id=90128#c14">Comment # 14</a> on <a class="bz_bug_link bz_status_NEEDINFO " title="NEEDINFO - Big monitor has blank display (HDMI or DVI) in any kernel since and including 3.13 (despite earlier fixes)" href="https://bugs.freedesktop.org/show_bug.cgi?id=90128">bug 90128</a> from <a class="email" href="mailto:philipmorant@gmail.com" title="philipmorant@gmail.com">philipmorant@gmail.com</a> <pre>Created <a href="attachment.cgi?id=130590" name="attach_130590" title="dmesg">attachment 130590</a> <a href="attachment.cgi?id=130590&action=edit" title="dmesg">[details]</a> dmesg Trying manual xrandr: xrandr --newmode "2560x1440_60.00" 312.25 2560 2752 3024 3488 1440 1443 1448 1493 -hsync +vsync xrandr --addmode HDMI1 2560x1440_60.00 screen goes blank. gnome is treating it as switched off. xrandr: Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767 HDMI1 connected primary (normal left inverted right x axis y axis) 2560x1440_60.00 59.96 HDMI2 disconnected (normal left inverted right x axis y axis) VGA1 connected 1920x1080+2560+360 (normal left inverted right x axis y axis) 478mm x 269mm 1920x1080 60.00*+ 1680x1050 59.95 1280x1024 75.02 1440x900 74.98 59.89 1280x960 60.00 1280x800 59.81 1152x864 75.00 1280x720 60.00 1152x720 59.97 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 56.25 640x480 75.00 72.81 66.67 59.94 720x400 70.08 VIRTUAL1 disconnected (normal left inverted right x axis y axis) xrandr --newmode "2560x1440_30.00" 146.25 2560 2680 2944 3328 1440 1443 1448 1468 -hsync +vsync xrandr --addmode HDMI1 2560x1440_30.00 xrandr --output HDMI1 --mode 2560x1440_30.00 The screen is still blank, but the system is treating the monitor as switched on (gnome adds 'switch to monitor right' menu option for windows. Also, the panel is now not visible because gnome has put it on the big monitor.) xrandr: Screen 0: minimum 8 x 8, current 4480 x 1440, maximum 32767 x 32767 HDMI1 connected primary 2560x1440+0+0 (normal left inverted right x axis y axis) 597mm x 336mm 2560x1440 29.94*+ 2560x1440_60.00 59.96 2560x1440_30.00 29.94 HDMI2 disconnected (normal left inverted right x axis y axis) 2560x1440_30.00 29.94 VGA1 connected 1920x1080+2560+360 (normal left inverted right x axis y axis) 478mm x 269mm 1920x1080 60.00*+ 1680x1050 59.95 1280x1024 75.02 1440x900 74.98 59.89 1280x960 60.00 1280x800 59.81 1152x864 75.00 1280x720 60.00 1152x720 59.97 1024x768 75.03 70.07 60.00 832x624 74.55 800x600 72.19 75.00 60.32 56.25 640x480 75.00 72.81 66.67 59.94 720x400 70.08 VIRTUAL1 disconnected (normal left inverted right x axis y axis)</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>