On Fri, Jun 22, 2012 at 12:41 PM, Alan W. Irwin <irwin at beluga.phys.uvic.ca>wrote: > On 2012-06-22 11:18-0700 St?phane Marchesin wrote: > > >> >> On Sun, Jun 3, 2012 at 5:44 AM, Emam Hossain <imamdxl8805 at gmail.com> >> wrote: >> Hello Everyone, >> >> Recently I have tested one of my old desktop which got Intel 945G on >> a Dual Core CPU. I have installed Ubuntu 11.10 with >> XServer 1.11, kernel 3.2 and xf86-video-intel 2.18. >> >> What I have found that Gallium driver i915g from Mesa 7.11 and 8 is >> performing better than officially supported DRI i915 >> driver. >> >> For example, when tested against the following games: >> >> BEEP, http://www.desura.com/games/**beep<http://www.desura.com/games/beep>(gallium plays fine while dri not) >> BIT.TRIP.RUNNER from humble bundle, http://bittripgame.com/** >> bittrip-runner.html <http://bittripgame.com/bittrip-runner.html> >> (gallium smooth gameplay, dri slow) >> and many more. >> >> Moreover, Windows games with WINE are not playable at all or broken >> with DRI driver while runs good with gallium. For example >> with games: >> >> Need for Speed Underground >> Flatout 1 >> Need for Speed Most Wanted >> >> gallium does the job while DRI does not. >> >> So, my question is why dont support gallium driver when it is >> performing better than DRI driver. why not make gallium driver >> better since Intel 945G does not have hardware support for many >> features, DRI driver is just slow for modern games except GL >> 1.1 games while gallium driver making use of CPU to perform those >> missing hardware features and making games at least run. >> Moreover, Windows driver does similar approach like gallium 3D. >> >> >> I feel that the reason is that the classic i915 driver is in maintenance >> mode and focus is on newer GPUs. The gallium i915 driver is what >> we use on some Chrome OS machines, and that's the main reason I've been >> working on it. >> >> With that said, I'm pondering exposing GL 2.1 on it, since it seems legit >> per the spec to hack sRGB texture support with U8 + fragment >> shader instructions. That'd allow some unigine-based games to run. >> >> > The i915g driver sounds like an interesting alternative for driving > older Intel equipment. For example, one of my computers (which I am > using as a thin client/X terminal) is an ASUS Eee netbook with the > 945GME chipset. The Debian stable version of the classic driver works > okay on that. For example, I can run "env LIBGL_ALWAYS_INDIRECT=1 > foobillard" on our principal machine and display the results on the > thin client without obvious issues. However, that is a pretty old > version of X, and there have been numerous changes to the Intel > graphics stack since then without much official testing on old > equipment (or on thin clients for that matter) by the Intel software > team. Therefore, I am not too sure whether the newer version of the > Intel graphics stack will work well on that equipment when I upgrade > to Debian testing, and the original post in this thread (quoted above) > isn't exactly reassuring on that issue. > > Therefore, I would like to try out the i915g driver myself. Are there > build instructions somewhere for that driver You just need to download mesa (preferably 8.x) and: ./configure --with-gallium-drivers=i915 make make install That should do the trick :) > or better yet is there a > Debian (or Ubuntu) package that includes it? > > I don't think there is a debian/ubuntu package, but I could be wrong. St?phane -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/intel-gfx/attachments/20120622/42384975/attachment.html>
