There are 4 standard-ish modes, FIFO (double buffered vsync), IMMEDIATE (no vsync), FIFO_RELAXED (adaptive vsync) and MAILBOX (fast-vsync, exceeds cap like triple buffer). When you select a mode, the driver has explicit rules from the spec how to behave so it always acts the same ...
dxvk.tearFree = True enables the mailbox present mode in case regular Vsync is disabled, which should avoid tearing. In some cases it may require settingnumBackBuffersto a value greater than3in order to work properly! dxvk.tearFree = False enables the relaxed fifo present mode in case regu...