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I have just installed steam but when I double click on the icon, it does nothing.

If i try to start steam from the terminal I get this:

This is what it says:

jonathon@BACAGE:~$ steam
Running Steam on ubuntu 12.04 32-bit
STEAM_RUNTIME is enabled automatically
/home/jonathon/.local/share/Steam/ line 704:  5275 Illegal instruction
Installing bootstrap /home/jonathon/.local/share/Steam/bootstrap.tar.xz
Running Steam on ubuntu 12.04 32-bit
STEAM_RUNTIME has been set by the user to: /home/jonathon/.local/share/Steam/ubuntu12_32/steam-runtime
/home/jonathon/.local/share/Steam/ line 704:  5361 Illegal instruction

Any ideas?

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up vote 1 down vote accepted

The Steam for Linux client requires a processor that supports SSE2. If your processor does not support SSE2, the Steam client will not run. If you run the Steam client from the command-line, you will see an illegal instruction exception caused by the lack of SSE2 support. In order to run Steam for Linux you will need to upgrade to a processor that supports SSE2.

-- Source

This page (Wikipedia) displays common compatible processors for SSE2

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Try running the Steam launcher like so:


As seen here

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This has given me the same error expect the number before the first Illegal instruction is 2724 and the second has changed to 2809 – BiggJJ Jun 19 '13 at 20:53
Could you tell me if your processor supports any form of SSE? cat /proc/cpuinfo, It will be under "flags:" if it is there. – cossacksman Jun 19 '13 at 21:08
SSE is listed under flags – BiggJJ Jun 19 '13 at 21:26
Is SSE2? I believe SSE may be essential – cossacksman Jun 19 '13 at 21:29
Only SSE is listed. But after you mentioning it, and a quick Google search, it look like you may be correct. – BiggJJ Jun 19 '13 at 21:35

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