On 29 Oct 2002, Gregory Stark wrote: > I reported a bug a while ago and didn't receive any response. In recent > releases of 4.2.1 the behaviour has changed slightly. The change in behaviour > makes me suspect somebody might think they've fixed the bug but in fact it's > still present.
> The problem manifests when in a screen size smaller than the frame buffer > size. So for example I normally operate in 1600x1200 but sometimes switch > resolution to 800x600 or 640x480 and pan around with the mouse to see small > details clearly. > When I do this I often see something weird. A small slice of the right side of > the screen shows pixels from elsewhere on the frame. For example, right now > I'm in 1280x1024 with a 1600x1200 frame buffer, and the rightmost 4 pixels are > showing the slice of pixels that also appear 769 from the left of the screen. > Ie, as I move windows around in the middle of the screen when they pass the > 769 mark i see them on the right edge as well. > The hardware mouse does not appear there. However another bug occurs with the > mouse. When I hit the edge and the screen pans the mouse hotpoint doesn't stay > synced with the pointer. This has the result that whenever I'm in a reduced > screen resolution the mouse hotpoint has a random displacement relative to the > pointer of up to 4 pixels. This is obvious if you drag an object to the edge, > you can see the object move while the mouse stays still, then the screen pans > and the mouse leaps ahead of the object. > This used to be 8 pixels and the exact behaviour of the hotpoint when panning > was subtly different. That's why I suspect somebody may have already tried to > fix this bug and the fact that it's been around so long leads me to suspect > perhaps they think they fixed it. In fact if anything it's gotten worse with > the new problem of the incorrect pixels appearing at the edge. The log shows you are only using the Matrox adapter. So, a few questions arise: - Do you see the same problems using the Mach64 GT? - WRT the mouse problem with the Matrox, what effect does Option "SWCursor" have? Marc. +----------------------------------+-----------------------------------+ | Marc Aurele La France | work: 1-780-492-9310 | | Computing and Network Services | fax: 1-780-492-1729 | | 352 General Services Building | email: [EMAIL PROTECTED] | | University of Alberta +-----------------------------------+ | Edmonton, Alberta | | | T6G 2H1 | Standard disclaimers apply | | CANADA | | +----------------------------------+-----------------------------------+ XFree86 Core Team member. ATI driver and X server internals. _______________________________________________ Xpert mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/xpert
