http://community.eidosmontreal.com/blogs/DXHRDC-Patch-Release-Notes
Deus Ex: Human Revolution - Director's Cut Patched
Posted by Valerie Bourdeau
A patch has just been released to address a number of bugs and issues that affected some players of Deus Ex: Human Revolution - Director's Cut.
What exactly has been fixed? This right here:
AI Bug Fixes
The Personality Dialog no longer disappears when talking to Chase;
Chet Wagner no longer missing;
Sarif dialog fixed when using pheromones.
Graphic Fixes
Black material - Fixed texture problem on the base of Detroit convenience shops;
Black wall in Sarif HQ near the entrance fixed;
Bright green textures instead of metallic textures in Hengsha kitchens fixed;
Fixed textures tiling issues in Adam's apartment floor and wall, Detroit grass and corridors;
Fixed floor tiling issue in Detroit apartment carpets;
Fixed black material on Tai Yong Medical walls.
Sound/Music Fixes
Fixed stuck sound issues;
Megan intro music stops playing in the walk and talk;
Fixed audio glitches in level load;
Fixed incoming commentary sound glitch when the system is disabled;
Music no longer stalling when performing an alt-tab.
Features fixes and additions
Setup dialog: now possible to change settings outside of the game;
Text selection language option fixed;
Fixed language switching issues from Steam and in-game;
Some performance optimizations.
We are still working on a few issues, most crucially the second screen functionality on PC and Xbox. We are collaborating with Intel and Microsoft to provide the full Director's Cut experience to all players as soon as possible.