Hi!

I am installing a fresh new laptop with a NVIDIA GTX1060 graphics card, using 
debian 9.

I have freshly compiled and installed efl 1.19.0 and enlightenment 0.21.7 
yesterday, so far so good.
Now I have connected two external monitors to that, one via display port to the 
left, another via HDMI to the right, and that works too.
The laptop screen showed some color steps in the background gradient, which 
vanished after setiing the Dithering Controls in the NVIDIA X Server Settings 
application to Enabled - Temporal - Auto.
At that point somewhere I opened the enlightenment Settings panel, Screen -> 
Screen Setup, which gives another configuratino view on the setup.
Here I activated "Laptop Lid" and "Backlight" for the laptop display (some 
tooltip or help text explaining whast this actually does would not hurt, 
either..). Clicking on "Apply", I noticed that the laptop display backlight(or 
the screen from black to gray?) flickers three times before showing the normal 
screen again.

The same thing happens on entering the session after login. This is independent 
of the options checked in the settings panel.
I can stop this behaviour by deselecting "Restore setup on start" in this panel 
and logout/login or restart, but then strangely the color
stepping on the display reappear. Now I am not sure how all these configuration 
mechanisms play together, but I would like to avoid inducing
some hardware damage by this strange flickering. There does not seem to be any 
error being logged, so it is probably just some autoadjustment of screen size 
or something, but I never had this on any other laptop before.

There also still is the preinstalled ubuntu 17.04 running a gnome3 environment 
on the machine, and there everything looks fine, so it is not a hardware 
problem...

Switching off one of the external monitors produces five flickers, each coming 
in maybe half a second from each other, switching it on again gives seven 
flickers, all only on the laptop display. It looks a bit as if some modes are 
probed and fail or something similar.

Any ideas what that might be and how to avoid it?

regards
   Peter


------------------------------------------------------------------------------
Check out the vibrant tech community on one of the world's most
engaging tech sites, Slashdot.org! http://sdm.link/slashdot
_______________________________________________
enlightenment-users mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/enlightenment-users

Reply via email to