Hello, I found there is a fix for Menu Bar graphic glitches using this SSDT:
DefinitionBlock ("ssdt.aml", "SSDT", 2, "APPLE ", "igpu", 0x00001000)
{
External (_SB_.PCI0, DeviceObj)
External (IGPU, DeviceObj)
Scope (\_SB.PCI0)
{
Device (IGPU)
{
Name...