Update:

#config_hdmi_boost=4

first, i ve already set the settings like here https://forum.repetier.com/discussion/comment/27726/#Comment_27726  to T`RTS HIGH DTR Low Malyan fix unchecked..

Got it working again. Tried solutions from https://forum.repetier.com/discussion/comment/27417/#Comment_27417

https://forum.repetier.com/discussion/comment/27368/#Comment_27368

@Braccoz

https://forum.repetier.com/discussion/comment/25652/#Comment_25652

Hi,

https://forum.repetier.com/discussion/comment/26749/#Comment_26749

https://forum.repetier.com/discussion/comment/12840/#Comment_12840

I read this https://forum.repetier.com/discussion/comment/23099/#Comment_23099 and this https://github.com/KevinOConnor/klipper/issues/348 .

https://forum.repetier.com/discussion/comment/22464/#Comment_22464

https://forum.repetier.com/discussion/comment/20466/#Comment_20466

got it to work with thread https://forum.repetier.com/discussion/comment/17392/#Comment_17392

https://forum.repetier.com/discussion/comment/11360/#Comment_11360

Hey all,

 http://forum.repetier.com/discussion/comment/16083/#Comment_16083

http://forum.repetier.com/discussion/comment/17741/#Comment_17741

http://forum.repetier.com/discussion/comment/11201/#Comment_11201

i was sent this link https://wiki.e3d-online.com/wiki/E3D-v6_Assembly#Configure_Firmware_.28Easy.21.29