On Mon, 2012-09-24 at 13:30 -0700, John Reiser wrote: > > Do you have any old or new graphic hardware, working or not? Join this test week and help us to hunt down driver bugs before Fedora 18 Beta release! > > There is doubt about whether this particular test day is worth the time. You're free to doubt whatever you like, but the experiences you appear to be citing as evidence are not especially relevant. > At a minimum, don't bother with any Radeon card that is less than a Radeon 9600. > Fedora pays no attention to bugs on such hardware, not even saying "Sorry, this > hardware is too old; we will increase the minimum hardware requirement" or > "This is hardware bug, and a software workaround is not feasible." For instance: > radeon_rendercheck 152752 failures; pci:1002:5157 Radeon RV200 QW [Radeon 7500] > https://bugzilla.redhat.com/show_bug.cgi?id=638758 > This card still is usable in XFCE. a) You're calling out a test you ran once nearly two years ago. Pretty sure we've fixed at least one RV200 bug since then. b) rendercheck is just a test battery. Passing all of its tests is not necessarily a prerequisite for correct rendering of any desktop; if you don't hit cases that fail, you'd never notice they were broken. c) I'm fairly sure zero of the tests you've shown to fail there _do_ matter. They all happen when you do a Render operation directly to a window, and nobody does that. Drawing straight to a window is unbelievably flickery, that's why everybody buffers things up to an offscreen pixmap and then blits across to the window (using core CopyArea, not Render). > Gnome3 is not putting any effort into fallback mode. So my Radeon 9250 > purchased new in 2006 as a mid-life upgrade for a box with 1.6GHz Pentium 4 > (well above the Fedora minimum CPU) also runs only XFCE. Gnome3 forces > fallback mode, where some Desktop features are *dropped* instead of emulated. Why do you feel this is relevant? X bugs are X bugs. > Also forget about any card+monitor which does not report EDID/DCC. "Forget about broken hardware"? Yeah, please do. > The Xorg.0.log > may note the true resolution of the panel (for instance, 1024x768), but the driver > gives only 800x600: > rage128 uses 800x600 resolution for LCD panel with 1024x768 native resolution > https://bugzilla.redhat.com/show_bug.cgi?id=493441 Your comparison between F17 and F18 therein is interesting but a bit off the mark. In F17 you're using vesa for some reason; in F18 you're not. > The nouveau driver also ignores reports, even on current-generation cards. > For instance: > glxgears framerate 12X faster than video refresh > https://bugzilla.redhat.com/show_bug.cgi?id=639415 vsync support isn't something nouveau has always done. But it turns out things have gotten a lot better since F15; I really wouldn't take a report of this vintage as indicative of how well things currently work. - ajax
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