gui jumpiness
 

I'm at work right now so I'm not at home to try a different gui. Anyway, I've been using an ATI AIW 9700 pro video card. I got fed up with ATI crappy linux drivers that are extremely hard to get working (I have a kt400 chipset mb with 8x agp auto enabled), and once I finally did get them working they were extremely unstable in 3d accelerated applications. So I just got a Geforce FX 5900 ultra, and now I'm going to sell the AIW and pay back most of this card. Anyway, I reinstalled Slack 9.0 from an empty harddrive. Compiled a 2.4.21 kernel. Installed the nvidia driver, modified the xf86config file accordingly, and kde is now working w/ the nvidia splash screen and everything. However, the gui sessions are extremely jumpy now. This wasn't the case w/ the AIW 9700 pro. The mouse will move smooth for a second and then jump, then move smooth for a second, then jump. I have 512 megs of ram and an athlon xp 2600+, so my system isn't lacking. Typing does the same thing. If I go to word and start typing a document, it's smooth for a second then there's a delay, then smooth, then delay. In fact, everything in the gui has a 1/2 second delay every now and again. I don't know if it's related to the video card, or if there's some other setting in the xf86config file that I don't know about. I haven't tried another gui besides kde yet, so I don't know if that's the culprit either. Any help would be greatly appreciated. THX.

I'm using GNOME and the GUI does that from time to time (mostly when moving the mouse over a window border or panel border. The only thing I can suggest is that, since you compiled a custom kernel, you forgot to enable some options in the kernel's menuconfig. Be sure when you compile your kernels that MTRR, AGPgart and DRI features get enabled. This was my big problem, and kernel graphics performance suffered. I enabled these options and performance normalized.

Good luck.