I need to create mirror fake displays in one physical monitor. I installed fakexrandr and now I have two fake displays(683x768) on 1366x768(max/prefered) monitor of my laptop.
When I run xrandr --output eDP1~1 --same-as eDP1 --verbose
command I'm gettings this error:
*also xrandr --fb 683x768
is printing the same error.
Phillip Berndt (owner/creator of fakexrandr) said "It is up to the graphics driver to actually apply any settings." in this issue. But it was not a satisfying answer for me.
For track down the issue I recorded the output of xrandr --verbose
on a two physical monitor setup. You can follow the commits in this repository to see the behavior of the output of xrandr --verbose
.
- After I did this I realized
xrandr --output eDP1~1 --same-as eDP1
command is trying to assigncurrent 683x768
toScreen 0:
. But graphic driver or physical monitor on my laptop has no683x768
output option/support. Maybe this could be the problem.(I'm not sure the accuracy of this paragraph, maybe it could be completely wrong.)
All in all: What is the actual reason of this error in the screenshot and the workaround for this problem?