slow slugish rendering of browser firefox and konqueror AGP

[F1r31c3r]

I found something that maybe of interest to AGP users if they ever have this problem.

The problem occurs when strange corrupt artefacts appear on the screen during KDE load-up. After loaded the screen seems fine with my situation but on loading any web browser everything becomes bogged down and sluggish.

An example would be if you try to drag your browser windows and it moves really slowly as if the mouse is attached to it by an elastic band.

I found this by complete chance when working on grub2 to boot mac x86 osx, i had graphics problems when loading mac osx so in my bios i have a setting called AMTT this is a Multi Transaction Timer that allocates clock slices at 66mhz. These clock slices normally on the majority of agp main-boards are disabled (set to 00h), on my system i can change this value. The higher the number the longer the time given to transactions to clear the back buffer.

Again i received strange artefacts on the screen in fact it looked like a messed up scrambled picture of my previous desktop session(goes to prove that even after you restart your computer this data remains in the graphics memory)

Anyway the setting i had for this while i was suffering the slow sluggish screen corruption was 8

Here is how i fixed it:

Yes I went into my bios and shifted the number to its max which was 38 so as i am to believe from my study that's 38 66mhz cycles.

Solved all the above issues by doing this so if anyone is having this issue just take a look in the Bios for AMTT or multi-transaction timer under your graphics/agp and increase the value.

Hope it helps someone or even points you in the right direction to fixing it.
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