#intel-gfx log extract

<Muzer> I have a laptop with a Nehalem-architecture i5 and its integrated GPU. I didn't expect it to be any good for gaming (that's not why I bought it), but I thought I'd try some games anyway, the results of even a slightly older game such as Portal are surprisingly bad; having a portal on your screen causes the game to dramatically drop in framerate - and Portal 2 is that slow all the time, even on lowest graphics settings in
<Muzer> 640x480. Am I missing some option that I should have enabled? I don't have a Windows install so I can't find out if the problems are isolated to Linux. Or are Intel GPUs, in Nehalem chips at least, really this bad? I don't really have anything to compare it to
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<bwidawsk> Muzer: whats the output of glxinfo | grep string
<Muzer> I have compositing disabled during play, there are no obvious errors in Xorg.0.log and glxinfo looks good (reports direct rendering as available). The Xorg.0.log can be found here: http://pastebin.com/j2afhMTc
<Muzer> er, hang on
<bwidawsk> Muzer: but if you're using direct sw rendering
<bwidawsk> that's no good
<Muzer> bwidawsk: http://pastebin.com/RLGQg4sd
<bwidawsk> k, looks good
<Muzer> being a Gentoo user, I have also compiled my own kernel so it's very conceivable that that's a bit messed up
<Muzer> ah, OK
<Muzer> I've tried enabling mtrr cleanup in-kernel, doesn't appear to help.
<bwidawsk> what kernel version?
<Muzer> 3.6.11-gentoo
<bwidawsk> yeah, i'd yell at the mesa guys...
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<bwidawsk> anholt: you ever run portal?
<bwidawsk> on ilk
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<Muzer> looking on the internet, I've seen other people with Nehalem i5s from around late 2011 onwards, even Windows users, moaning about the same symptoms as me
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<Muzer> with the original Portal this is
<bwidawsk> it's not a terribly powerful GPU
<dcope> Hello all, I'm using Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller with Ubuntu 12.04. It keeps thinking my TV is 72" when it is 46" and content is off the screen.
<blez> someone have CPU with GMA 3650?
<dcope> Any ideas?
<Muzer> (ie perfectly smooth when not looking at portals, horribly laggy when looking at portals)
<blez> it's running pretty slow on my atom
<Muzer> of course, I won't really mind if I don't get a solution
<blez> that's linux only, my bad.
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<Muzer> it's just a nice thing to be able to do.
<Muzer> and yeah, my friend with a Sandy Bridge i5 reports perfectly smooth Portal 2 on Windows and Linux. It could just be that the Sandy Bridge's GPU is so much better, but it does seem quite an extreme difference, unless he's exaggerating (I haven't seen it running).
<bwidawsk> Muzer: there is a huge difference actually between ILK and SNB
<bwidawsk> you could always try to boot your harddrive on his machine to confirm
<Muzer> might be an idea
* bwidawsk needs to install steam
<Muzer> this is under wine if it wasn't obvious, btw
<Muzer> Steam for Linux doesn't have portal yet :P
<bwidawsk> oh :-(
<Muzer> TF2 is there
<Muzer> most of the humble indie bundle games
<Muzer> and a few other odds and ends
<Muzer> I'm not really a gamer so I can't say if any of them are any good
<Muzer> I suppose really I was wondering if there's some power-save option that might be enabled by default or something. As far as VRAM goes it seems to be using 256MB and I can't change it, so I dunno if this is acceptable nowadays (as I said, I'm not a gamer, I'm pretty out of the loop as far as this goes)
<RAOF> dcope: Sounds like your TV, like almost all of them, overscans.
<bwidawsk> Muzer: not on ILK, SNB has some things you can poke
<Muzer> OK, so my only real hope assuming there's nothing really obscure wrong is to wait for future kernel versions and see if I notice any slight improvements, or perhaps with native code when Portal is released for Steam on Linux ;)
<bwidawsk> Muzer: no, the mesa guys should be able to provide some insight, unfortunately it appears anholt is afk
<bwidawsk> you can bug Kayden too when he comes on
<bwidawsk> if it's around portals only, on portal 1, that sounds like it's shader BS
<bwidawsk> and portal 2 just sucks harder because it uses shaders everywhere
<Muzer> I've disabled GLSL in wine because that makes weird glitches around portals too (as well as the slowness)
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<Muzer> perhaps enabling it for Portal 2 might be a good thing to test
<bwidawsk> oh
<bwidawsk> well, yeah, try to bug one of those two when they're around
<RAOF> dcope: The radeon has some
<Muzer> OK, thanks a lot, know what timezone they're in?
<RAOF> dcope: The radeon driver has some knobs you can twiddle around over/underscan, but I don't see any such knobs in intel.
<Muzer> I'm in a "really should be asleep by now" timezone ;) (UK)
<bwidawsk> anholt and Kayden are both -8
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<Muzer> ah, so they could potentially be on soon
<Muzer> I'll stay around for a bit longer and play some more 5-10fps portal 2 ;)
<bwidawsk> Kayden is somewhere until many hours from now
<bwidawsk> but anholt is probably just afk