MSIg41-P28 sierra works but display flicker can't shutdown

[Salsabila]

Please help.

MSI g41-P28,Core2duo 2,9GHZ,RAM 4GB,
Clover_v2.4k_r4411
ethernet kext using Yosemite kext, works
Audio using yosemite kext,works
Vga Nvidia GT420,kext using yosemite kext.works
screen 1290x1080,works,
GPU detected but screen flickers and can't shutdown.

 

[P1LGRIM]

Moved to Sierra Desktop Support.

 

[Salsabila]

thanks