The game won't start / Crashes on launch:
The game looks zoomed in:
Steam Overlay isn't working:
Some graphics cards offer built-in features that can help achieve a widescreen fix: sleeping dogs widescreen fix
The community standard is Silent’s Sleeping Dogs Widescreen Fix (available on PCGamingWiki and various mod repositories). This is a .asi plugin that hooks into the game’s renderer. The game won't start / Crashes on launch:
If Flawless Widescreen crashes or you want a permanent, offline fix, you need to hex-edit the executable. This is technical, but precise. The game looks zoomed in:
Tools Needed: