Felix Miata <mrmazda@xxxxxxxxxxxxx> posted 4A4CD62A.2020908@xxxxxxxxxxxxx, excerpted below, on Thu, 02 Jul 2009 11:45:46 -0400: > I find this thread a bit hard to believe. Are there really people so > naive as to believe a 5+ year old machine should be able to competently > provide full KDE4 (Vista-style 3D) bling? I would expect only a > Vista-competent (no more than ~9 months older than Vista) machine to > produce acceptable KDE4 bling. My Radeon is rv380 (X600), and I wouldn't > expect it to do well without all the bling turned off. It should be able to do at least as well as the older KDE3 technology does on the same hardware, with the same level of effects, on the same xorg config. Here, kde 3.5 (3.5.10) is my working desktop. kde 4.2 (4.2.4) is my frustration desktop. One (but by no means the only one) of the reasons is that 2-D only EXA accel, transparency-only effects (no fade, no drop- shadow), are still so much slower than the exact same effects level on kde 3.5 works with virtually no slow-down (as compared to no effects), where on 4.2, it's slow and buggy, to the point kde tries to turn it off occasionally. More details: General platform: Gentoo/~amd64, both kde 3.5.10 and 4.2.4 installed. Older original dual socket Opteron 2xx style mobo (Tyan s2885), dual maxed out 2.8 GHz dual-core Opteron 290 CPUs, 8 gigs RAM. 4-spindle SATA based md/kernel RAID, RAID-6 main system, RAID-0 cache dirs, 4-way striped swap, /tmp on tmpfs. Specific to the issue here: Older r200 based Radeon 92xx (for many years, the best graphics hardware one could buy to run with freedomware drivers), running dual 1920x1200 LCDs stacked for 1920x2400. That's critical, as either the card or the driver limits OpenGL to 2048x2048, so the the bottom 352 px of the bottom monitor isn't OpenGL accelerated. As a result, kde 4.2 won't enable OpenGL (even on the upper 2048 px) effects. OK, I can accept that. However, there are two specific issues: 1) KDE 4 provides no indication of what effects actually work with XRender, and which require OpenGL. One would think they'd disable (dim out and make them unselectable) the OpenGL required effects in XRender mode, but they don't. Thus, one has to go trying each one to see if it actually does what it says on the tin, and if it doesn't work, one is still left wondering whether it's that it requires OpenGL, or whether there's something else disabling it (maybe one hit the wrong keys trying to invoke it, maybe it conflicts with another enabled effect, maybe kde isn't seeing the key for some reason, etc). This one is a major usability bug that frankly, should have been fixed before a release the PR said was ready for the general public. It's easy enough. KDE already detects whether the system can safely enable OpenGL mode and disables it if it needs to. Why doesn't it disable OpenGL requiring effects in the GUI at the same time? That's a beta level quirk and I'm a power user that enjoys testing beta level software, but it should have never made it into a release intended for general public usage. 2) Even with the same effects settings as 3.5, kde 4.2 is DOG SLOW, seconds to respond to active window changes, etc, where the response is essentially instant in 3.5, to the point kde tries to disable the effects sometimes. Again, if it can be done in 3.5 without noticeable slowdowns at all (at least with EXA enabled instead of XAA), what's the problem with 4.2? The hardware is obviously capable, or I'd not have already been using the exact same effects (transparency, no drop-shadows or fading) on kde 3.5 for years already! And in 3.5, those effects were supposed to be bolted on and thus not supposed to be at peak efficiency, while in 4.x, they're supposed to be integrated, and therefore should run FASTER! Anyway, I'll probably be upgrading to an r500 based card one of these days. The board is late AGP with PCI-X, no PCI-E, so unfortunately the cards cost more and the x1950 (rv570/r580) I'm looking at is still running $150, unfortunately. And that's hard to come up with in this economy. I may end up getting an earlier x1650 (rv530/rv560) instead, for $70 or so IIRC. (The r5xx chips are the highest with full xorg/ kernel freedomware driver support ATM, the r6xx/r7xx chips are newer, but don't have full xorg freedomware driver support yet, and the r5xx chips are likely as good or better for AGP anyway, if they even have AGP based r6xx/r7xx hd series cards at all.) KDE4 should work on them with full OpenGL effects, which will be nice. But that still doesn't answer the question of why if kde 3.5 can manage an effect with virtually no slowdown, the same effect is dog slow on kde 4.2, or why the effects selection doesn't disable the opengl choices when opengl is disabled. For this and other reasons, kde4 remains "substantially broken" for my usage, at least thru 4.2.4, and my kde4 desktop remains my "frustration desktop" while my kde3 desktop is my "working desktop". Oh, well... -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman ___________________________________________________ This message is from the kde mailing list. Account management: https://mail.kde.org/mailman/listinfo/kde. Archives: http://lists.kde.org/. More info: http://www.kde.org/faq.html.