<html> <head> <base href="https://bugs.freedesktop.org/"> </head> <body> <div> <a class="bz_bug_link bz_status_NEW " title="NEW - Native screen resolution not working correctly over HDMI LSPCON (i915)" href="https://bugs.freedesktop.org/show_bug.cgi?id=107503#c15">Comment # 15</a> on <a class="bz_bug_link bz_status_NEW " title="NEW - Native screen resolution not working correctly over HDMI LSPCON (i915)" href="https://bugs.freedesktop.org/show_bug.cgi?id=107503">bug 107503</a> from <a class="email" href="mailto:nicholas.stommel@gmail.com" title="Nicholas Stommel <nicholas.stommel@gmail.com>"> Nicholas Stommel</a> <pre>Even worse, the problem happens and is irreversible after a 'good boot' if xrandr is used to change atomic settings like "Broadcast RGB" as in the following (note how five display modes completely disappear): $ xrandr Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 8192 x 8192 DP-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) DP-3 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 598mm x 336mm 1920x1080 60.00*+ 50.00 59.94 1680x1050 59.88 1600x900 60.00 1280x1024 60.02 1440x900 59.90 1280x800 59.91 1280x720 60.00 50.00 59.94 1024x768 70.07 60.00 800x600 72.19 60.32 56.25 720x576 50.00 720x480 60.00 59.94 640x480 66.67 60.00 59.94 720x400 70.08 $ xrandr --output DP-3 --set "Broadcast RGB" "Full" X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 140 (RANDR) Minor opcode of failed request: 21 (RRSetCrtcConfig) Serial number of failed request: 61 Current serial number in output stream: 61 $ xrandr Screen 0: minimum 320 x 200, current 1280 x 800, maximum 8192 x 8192 DP-1 disconnected (normal left inverted right x axis y axis) HDMI-1 disconnected (normal left inverted right x axis y axis) DP-2 disconnected (normal left inverted right x axis y axis) HDMI-2 disconnected (normal left inverted right x axis y axis) DP-3 connected primary 1280x800+0+0 (normal left inverted right x axis y axis) 598mm x 336mm 1280x800 59.91* 1024x768 60.00 800x600 72.19 60.32 56.25 720x576 50.00 720x480 60.00 59.94 640x480 66.67 60.00 59.94 720x400 70.08 $ xrandr --output DP-3 --mode 1920x1080 xrandr: cannot find mode 1920x1080</pre> </div> <hr> You are receiving this mail because: <ul> <li>You are the assignee for the bug.</li> <li>You are on the CC list for the bug.</li> <li>You are the QA Contact for the bug.</li> </ul> </body> </html>