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whahn1983

Member

Registered: 2013-05-23

Posts: 59

[SOLVED] KSP Running Extremely Slow

So I can't really pinpoint the problem but Kerbal Space Program is running very slow.  I have turned all the graphics settings down in the game as low as possible, but with resonably sized rockets and space stations the game is pretty much unplayable.  I have an AMD A10-5800K APU and 6GB RAM.  My last computer had an AMD Phenom II and it ran the same simulations just fine (on Ubuntu).  I was wondering if there was some setting I am missing or something slowing down my CPU because from what I have been reading online, others are playing just fine with the AMD A10.  I can provide more system info on request but didn't really know where to start let alone what info is needed.  Any suggestions at all will be appreciated.  Thank you.

Last edited by whahn1983 (2013-08-20 06:01:38)

xpander

Member

Registered: 2013-01-23

Posts: 56

Re: [SOLVED] KSP Running Extremely Slow

what gpu did your last PC have?
the cpu is not the issue here i think.
the problem is with the the gpu.
and what driver are you using?

Last edited by xpander (2013-08-18 07:32:02)

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gilmoreja

Member

From: Florida

Registered: 2012-05-28

Posts: 77

Re: [SOLVED] KSP Running Extremely Slow

Go to settings and look for the slider that sets "Max Physics Delta-time Per Frame" and set it all the way to the right (0.3).

This will cause the game to slow down time to do physics calculations instead of lower the framerate while it calculates.

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whahn1983

Member

Registered: 2013-05-23

Posts: 59

Re: [SOLVED] KSP Running Extremely Slow

My last gpu was a Radeon 6970 (the A10-5800 has a 7660).  Both then and now I used the open source drivers.  I did turn the max physics delta all the way to the right however now it takes me like 10 minutes to launch and when docking with my space station it's still laggy.

xpander

Member

Registered: 2013-01-23

Posts: 56

Re: [SOLVED] KSP Running Extremely Slow

7660 is a lot more slower than 6970.. and its using only ddr3 also.
but i dont think it should be the reason why its extremly slow
my bet  is that this hardware isnt well supported with the opensource drivers yet.

if you have the possibility to try those (buggy) fglrx drivers and see the results then.
and report back.

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Linux Gaming Videos:http://www.youtube.com/user/Xpander666

whahn1983

Member

Registered: 2013-05-23

Posts: 59

Re: [SOLVED] KSP Running Extremely Slow

Yea I hear it has a lot of problems with the latest x.org.  I'm hoping for some improvement with kernel 3.11.  I saw a pretty noticeable improvement with 3.10.

whahn1983

Member

Registered: 2013-05-23

Posts: 59

Re: [SOLVED] KSP Running Extremely Slow

Well I solved my problem.  Something told me to look in my BIOS and it turns out the motherboard was in some kind of standard/eco mode.  I changed it to overclock mode and now KSP runs smooth.  It is actually running too fast, faster than 1 second real time.