Alias: vsync, sync
Description: Video synchronization
Video sync behaviour can be configured with the "video_sync" option. The
default setting is off. The available values are:
Value: 1 ("Auto")
If the host refresh rate matches the game's refresh rate, emulation
and video will be synchronized to the display for perfectly smooth
scrolling. If not, FS-UAE will only sync buffer swap to vblank in order
to remove tearing.
# Value: vblank ("Buffer swap only")
# Video buffer swap (but not emulation) will be synced to vblank
# to remove tearing. This value is used to prevent FS-UAE from
# synchronizing the emulation to the display.
Value: 0 ("Off")
Video and emulation will not be synced to the display. Instead,
a timer will be used to manage the emulation speed. You may see
tearing on the display since buffer swaps are not synchronized to
The previous value "full" is deprecated as of FS-UAE version 2.2.2, and it
will now behave as auto. See [assume_refresh_rate] if you need to force vsync.
See also [low_latency_vsync], [video_sync_method], [assume_refresh_rate].