La solution pour la résolution ecran et autre
http://forum.alanwake.com/showthread.php?t=7759
en gros
voici les commandes
GENERAL
Command Line options
The game supports a few command line options meant mainly for troubleshooting. Warning: for advanced users only. Many of these options can be selected from in-game menus and we recommend doing that instead.
You can enter them by right clicking on Alan Wake in the Steam Library and choosing Properties. From there go to "Set launch options".
-w screen width (e.g. -w1280)
-h screen height (e.g. -h720)
-window force windowed
-novsync disables v-sync
-showfps shows a frame rate counter on screen
-forcesurround forces 5.1 speaker mode
-forcestereo forces stereo (2 channel) speaker mode
-nosound disables sound
-cleancloud deletes your save games and settings for Alan Wake from Steam Cloud
-noblur disables the in-game vector blur
-locale=xx forces a selected locale. This should not be needed as you can change it from the Game Properties in Steam. Note that you have to have the locale files downloaded from Steam and that happens only when you choose the language you want to play in from Steam.
CHEATS
Use -developermenu parameter if you really want to cheat, or play in Nightmare difficulty without playing the game through once.
ça donne ça je pense
"C:\Program Files (x86)\Remedy Entertainment\Alan Wake\ss.exe" -forcestereo -w1920 -h1080
"C:\Program Files (x86)\Remedy Entertainment\Alan Wake\ss.exe" -forcestereo -w1024 -h768