What i did: First generate a "modeline" by using cvt. (below you see all my
attempt in terminal)
Second telling to xrandr the newmode. But it failed.
I know for sure if i install Nvidia Drivers it will be ok. But i dont wanna
this. In the past i installed APT Repository for Linux-libre of JXSELF. I was
in that time in Debian Jessie. So i installed the 4.1 kernel Previous
long-term support (LTS) version. And it worked like a charm.
But now with Debian Stretch, and doing "uname -a" the kernel is 4.9. I did
with "sudo apt install linux-libre-4.9" and didn't worked as expected. I even
tried after "sudo apt install linux-libre-lts" noting works!
The last resort i have is Nvidia drivers.
For instance, i tried Opensuse and *everthing* works.
I dont know what i need to do now. I got lost.
Thanks for your support.
