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LWN.net Weekly Edition for May 23, 2013
An "enum" for Python 3
An unexpected perf feature
LWN.net Weekly Edition for May 16, 2013
A look at the PyPy 2.0 release
Posted Aug 6, 2009 18:53 UTC (Thu) by ncm (subscriber, #165)
Posted Aug 6, 2009 19:34 UTC (Thu) by firstname.lastname@example.org (subscriber, #52701)
Posted Aug 6, 2009 22:42 UTC (Thu) by yokem_55 (subscriber, #10498)
The PowerVR based GMA500 chips that Intel is selling right now have rather poor drivers, and the prospects for improving them are quite poor as documentation won't be released and nouveau style reverse engineering will take quite a long time.
Via has released some documentation on their chips, but from cursory observation, the OpenChrome folks don't have much in the way of developers to work on getting the drivers up to snuff.
Nouveau itself is improving, but by the time they can offer solid support for the chips that are shipping now, nvidia will have released their new DirectX11 chips that will likely require a substantial amount of new reverse engineering work.
Virtualized environments are just now starting to get decent 3d support, and properly working compositing in virtualized environments is still a ways away.
This is not to mention there are situations where disabling compositing is desirable because of problems that applications experience when they are composited. For instance, many windows applications running under wine, crawl to a halt under compositing and lord knows if those problems can ever be fixed.
My point is not that Gnome3 shouldn't be designed to heavily take advantage of compositing, but that it if it does, it should provide some graceful fallbacks that doesn't totally gut the functionality of the environment when compositing doesn't work as expected.
Posted Aug 7, 2009 3:33 UTC (Fri) by drag (subscriber, #31333)
It's just that you'll lose the features that Mutter provides if you don't want to use Mutter.
Posted Aug 7, 2009 8:52 UTC (Fri) by aquasync (subscriber, #26654)
Posted Aug 7, 2009 15:21 UTC (Fri) by cortana (subscriber, #24596)
18 months ago, I bought a laptop with an Intel GM965 video card. This is supposed to be one of the amazing Intel graphics cards that "just works". It has not lived up to this expectation. Currently I can run stellarium, but celestia and anything based on clutter runs at a pitiful 1 frame per 3-4 seconds, when they are lucky to run at all, rather than causing X to segfault.
Now that Intel's newer graphics cards have gone all proprietary, I doubt this situation will ever improve.
Posted Aug 7, 2009 18:36 UTC (Fri) by email@example.com (subscriber, #52701)
Second, something about your driver situation is horribly, horribly wrong. You need to fix it; the 965 has stellar support and performance is two orders of magnitude better than what you are getting.
Third, a netboot graphics chip, so far, shipped in two netbooks is not the future of Intel graphics. Larabee is. Google it.
Last, just speculation but by the way in which the TTM/GEM has been developed, I suspect that we'll see OpenCL (yes, CL, not GL) available in some officially supported fashion on Linux on Larabee in the form of a 100% open-source driver before the end of 2010.
Posted Aug 10, 2009 12:41 UTC (Mon) by kingdon (subscriber, #4526)
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