On 11/28/2010 07:22 PM, Bruno Wolff III wrote: > On Sun, Nov 28, 2010 at 10:48:34 -0500, > Bill Davidsen<davidsen@xxxxxxx> wrote: >> It absolutely is, possibly I should have mentioned that. But it is not >> intuitive that accelerated video drivers would map to lower frame rates >> and less smooth screen updates. If the old drivers could use horizontal >> retrace sync (or perhaps none at all?) why are "better" drivers slower? > > I think the answer is glxgears isn't really a benchmark tool and being able > to sync with vertical refresh is good for preventing tearing. > >> And more importantly, why do the gears visibly twitch and change >> rotational rate when they appeared smooth with the old drivers? > > That doesn't sound good, but I don't have an answer. > >> I have said before that too much effort was going into eye candy like >> wobbly windows, and not enough into support for older video hardware. > > OpenGL support is important and is fundemental to better 3d support for all > things. This is especially true for cards with shaders. But working 2d support > is supposed to be important to the Red Hat support people. I expect that > noticing regressions is hard because there is so much different hardware out > there and one doesn't typically do a lot of testing on old hardware unless it > is all you have. > >> The 2nd part HAS improved, at least in the case of my Radeon hardware, I >> don't have to use vesa or vendor drivers to have stable operation. In >> the next few days I will be trying some non-Radeon video, I look forward >> to the information. > > My rv530 is working nicely on F14. My rv280 had an issue triggered by a > suboptimal aperture setting in the bios that I hope I have provided enough > info to have a fix made upstream. I haven't retested a problem I had where > the output went to the unused output by default. When using a monitor without > EDID support on the DVI port, output appeared to have went to the (unused) > VGA port instead. Rawhide desktops are a bit messy now, but possibly not due > to the drivers. And it seems to be getting better. I am saw some crashes when > testing a 2.6.37-rc3 kernel that looked graphics driver related. But I haven't > collected any data to verify that. My nv28 doesn't get much use, but for > non-3d stuff it seems OK modulo the rawhide desktop issues I see with my > rv280. It still breaks some games (notably warzone2000 doesn't work if > you install the experimental driver package). Unfortunately for me F14 has regressed even further than F12 as far as 3D/compositing (straight 2D does appear fine so far). As soon as you turn on compositing with my ATI Mobility Radeon X300 or RV535 [Radeon X1650 Series] systems the graphics becomes really sluggish and unusable (glxgears judders with about a 30Hz about frame rate (should be 60/75Hz on these systems and is without compositing). This is not so important as running 3D apps though. Blender will not run on either of these systems (huge delays when posting menus etc). Mind you on Intel I945 hardware blender just causes the X-Server to lock-up hard, so its not just ATI cards. It's been nearly 2 years now (since about Fedora8) that blender has been able to run on any of my Fedora systems! -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
