On Wed, Apr 22, 2015 at 04:07:47PM +0200, Lukas Hejtmanek wrote: > Hello, > > not sure whether this list is send-patch-only or for support as well. > > However, I have Lenovo X1 Carbon 3rd gen, with 2560x1440 local panel and 4k > (3840x2160) external display connected via display port (directly on X1). > > It has Intel HD 5500 graphics. > > using xrandr, I can see: > > xrandr > Screen 0: minimum 8 x 8, current 2560 x 1440, maximum 32767 x 32767 > eDP1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 310mm x 174mm > 2560x1440 60.0*+ > 1920x1440 60.0 > 1856x1392 60.0 > 1792x1344 60.0 > 1920x1200 60.0 > 1920x1080 59.9 > 1600x1200 60.0 > 1680x1050 60.0 59.9 > 1600x1024 60.2 > 1400x1050 60.0 > 1280x1024 60.0 > 1440x900 59.9 > 1280x960 60.0 > 1360x768 59.8 60.0 > 1152x864 60.0 > 1024x768 60.0 > 800x600 60.3 56.2 > 640x480 59.9 > DP1 disconnected (normal left inverted right x axis y axis) > DP1-8 connected (normal left inverted right x axis y axis) > 1920x2160 60.0 + > DP1-9 connected (normal left inverted right x axis y axis) > 1920x2160 60.0 + > 1920x1200 59.9 > 1920x1080 60.0 > 1600x1200 60.0 > 1680x1050 60.0 > 1280x1024 75.0 60.0 > 1280x800 59.8 > 1152x864 75.0 > 1024x768 75.1 60.0 > 800x600 75.0 60.3 > 640x480 75.0 60.0 > 720x400 70.1 > DP2 disconnected (normal left inverted right x axis y axis) > DP2-1 connected (normal left inverted right x axis y axis) > 1920x1200 60.0 + > 1920x1080 60.0 > 1600x1200 60.0 > 1680x1050 59.9 > 1280x1024 60.0 > 1280x960 60.0 > 1024x768 60.0 > 800x600 60.3 > 640x480 60.0 > 720x400 70.1 > DP2-2 disconnected (normal left inverted right x axis y axis) > DP2-3 disconnected (normal left inverted right x axis y axis) > HDMI1 disconnected (normal left inverted right x axis y axis) > HDMI2 disconnected (normal left inverted right x axis y axis) > VIRTUAL1 disconnected (normal left inverted right x axis y axis) > > So, I suppose, I have to use MST to have 3840x2160. However, how to do it using xrandr? > Is is possible to do it with xrandr 1.4? > > xrandr -v > xrandr program version 1.4.1 > Server reports RandR version 1.4 > > I can set auto do DP1-8 output, which works, however, display shows 1920x2160 > resolution scaled to the whole screen. > > I cannot set auto to DP1-9: > > xrandr --output DP1-9 --auto > xrandr: Configure crtc 1 failed > > So, is there a way for now to display 4k on the external monitor? Try $ xrandr \ --output eDP1 --primary --preferred \ --output DP1-8 --preferred --right-of eDP1 \ --output DP1-9 --preferred --right-of DP1-8 -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
