D'après ce site qui a pour but principal de recenser les problèmes techniques concernant HL2 ainsi que leur solution, il semblerait que le premier patch pour HL2 arrive demain !

Il existe un problème de son, associé avec une perte soudaine de performance sur HL2. Ce problème semble toucher énormement de joueurs, quelle que soit leur machine de jeu. A priori, il s'agit d'un problème lié au chargement des textures, comme indiqué dans ce post d'hier

11/22/04 02:09:11 AM GMTA solution for the stuttering problem has been found and a fix is coming. I've been talking with Gary McTaggart about this today and it turns out that my texture management theory was correct. A patch will be coming for this issue that will load all of the required textures into video memory on level load, rather than doing it during game play. There is currently no ETA for this patch, but I will post an update as soon as I get more information.

Le plus interessant est dans ce post :

11/22/04 06:03:33 PM GMT
Just received the following email from Erik Johnson at Valve. The patch should come out no later than tomorrow.

We've found a fix for this problem, and we're planning on shipping it no later than tomorrow.

Plus d'information demain !