I tried that, same crash
I also used the Ubuntu Software Center to get some s2tc packages but with no luck.
Here's my HPL.log file when launching after the s3tc and s2tc being on::
Version 1.10
-------- THE HPL ENGINE LOG ------------
Engine build ID 20100930233707
Creating Engine Modules
--------------------------------------------------------
Creating graphics module
Creating system module
Creating resource module
Creating input module
Creating sound module
Creating physics module
Creating ai module
Creating gui module
Creating generate module
Creating haptic module
Creating scene module
--------------------------------------------------------
Initializing Resources Module
--------------------------------------------------------
Creating loader handlers
Creating resource managers
Adding loaders to handlers
--------------------------------------------------------
Initializing Graphics Module
--------------------------------------------------------
Init lowlevel graphics: 640x480 bpp:32 fs:0 ms:0 gpufmt:2 cap:'Amnesia - The Dark Descent - Loading...' pos
-1x-1)
Setting video mode: 640 x 480 - 32 bpp
Init Glew...OK
Setting up OpenGL
Vendor: Tungsten Graphics, Inc
Renderer: Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2
Version: 2.1 Mesa 8.0.2
Max texture image units: 16
Max texture coord units: 8
Max user clip planes: 6
Two sided stencil: 1
Vertex Buffer Object: 1
Anisotropic filtering: 1
Max Anisotropic degree: 16
Multisampling: 1
Texture compression: 1
Texture compression S3TC: 1
Auto generate MipMaps: 1
Render to texture: 1
Max draw buffers: 8
Max color render targets: 8
Packed depth-stencil: 1
Texture float: 1
GLSL Version: 1.20
ShaderModel 2: 1
ShaderModel 3: 1
ShaderModel 4: 0
OGL ATIFragmentShader: 0
Setting up G-Bugger: type: 0 texturenum: 3
Adding engine materials
Initializing DevIL
Vendor String: Abysmal Software
Version String: Developer's Image Library (DevIL) 1.6.8pre Aug 3 2010
Version Number: 168
Adding engine post effects
--------------------------------------------------------
Initializing Sound Module
--------------------------------------------------------
Initializing OpenAL
Available OpenAL devices:
0. PulseAudio Default(OpenAL default)
1. Built-in Audio Analog Stereo via PulseAudio
2. ALSA Default
3. HDA Intel [CONEXANT Analog] (hw:0,0) via ALSA
4. HDA Intel [Conexant Digital] (hw:0,1) via ALSA
5. HDA Intel [HDMI 0] (hw:0,3) via ALSA
6. PortAudio Default
7. No Output
Trying to open device 'PulseAudio Default'... Success!
Number of mono sources: 32
Streaming setup: 4 Buffers x 262144 bytes each
--------------------------------------------------------
Initializing Game Module
--------------------------------------------------------
Adding engine updates
Initializing script functions
--------------------------------------------------------
User Initialization
--------------------------------------------------------
- DEMO VERSION -
--------------------------------------------------------
Game Running
--------------------------------------------------------
-------- Loading map 'menu_bg.map' ---------
Cache Loading: 2368 ms
Entities: 284 ms
Compilation: 1 ms
Total: 2677 ms
Meshes created: 28
Bodies created: 5
-------- Loading complete ---------