_moo_ May 9, 2013 @ 1:04am
[Solved] confusion about libtxc_dxtn 32-bit version needed, but running steam 64-bit
Hello,

I'm on Gentoo (~x86_64) and I was wondering about the message

"This application requires either the GL_EXT_texture_compression_s3tc, or the GL_EXT_texture_compression_dxt1 + GL_ANGLE_texture_compression_dxt3 + GL_ANGLE_texture_compression_dxt5 OpenGL extensions. Please install S3TC texture support."

when I start games (left4dead2 beta for example)

This is odd because I'm able to resolve the issue by installing the package "libtxc_dxtn" (32-bit)
while the 64-bit version would not resolve the issue.
Now, why is this 32-bit package needed when everything else is 64-bit.

Any feedback on this is welcome :)
Last edited by _moo_; May 9, 2013 @ 1:25am
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instabilis May 9, 2013 @ 1:10am 
Steam, and the majority of games on Steam, are 32-bit applications.
_moo_ May 9, 2013 @ 1:16am 
well I'm quite sure I dont use the 32-bit compatibility flag (as I explicitely disabled it) hence I dont have any 32-bit opengl packages.

As said - if I install just this 32-bit package everything works which is odd, because it must mean this game actually runs on 64-bit (left4dead - as valve annouced they'd port it to 64-bit)
but why this one and only 32-bit package? hence my confusion :) thanks
Shark May 9, 2013 @ 1:22am 
Steam was never 64 bit, it doesn't even support 64 bit applications.
_moo_ May 9, 2013 @ 1:25am 
Yes you were right, I once installed the 32-bit version of the opengl packages which oddly didnt get removed. But it steam is on 32-bit. Thanks for clarification :)

Sometimes getting System Information and comparing Mesa versions can give you pretty hints :p
Last edited by _moo_; May 9, 2013 @ 1:26am
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Date Posted: May 9, 2013 @ 1:04am
Posts: 4