[ale] unusual cursor behavior - don't know where to begin

William Fragakis william at fragakis.com
Tue Feb 6 09:42:28 EST 2007


On Tue, 2007-02-06 at 09:15 -0500, James P. Kinney III wrote:
> Disable gpm at start up (chkconfig gpm off) so only X has mouse
> controls. This sounds like a mouse conflict between console and X
> control of mouse data. gpm is not needed for mouse events in X.
> 
> If that doesn't work at least the issue has been narrowed down to a pure
> X environment problem.
> 
I'll give that a whirl. My suspect is the onboard video or bios which is
known to be flaky on that mb

> Since it happens with both Gnome and KDE, it must be the underlying
> mouse driver. It is possible that there is some memory corruption
> causing errant behavior that only appears under load. Try running
> memtest86 and beat the RAM up for a while.
> 
I ran it through when I first built the box and it ran clean. I'm
thinking this isn't the likely spot because it runs fine as a server. No
issues there.

thanks for the suggestions.

William

> On Mon, 2007-02-05 at 22:36 -0500, William Fragakis wrote:
> > Hi all,
> > I tried googling this but it's such a bizarre behaviour, I run into
> > solutions to every problem but the one I seem to be having.
> > 
> > We have an LTSP server at school which behaves properly as a server. The
> > teacher also uses it as a work station and only in this situation does
> > our situation arise - no matter the log in and in both GNOME and KDE.
> > After a while when a few apps have been opened (not any one
> > specifically) the cursor refuses to leave the left hand quarter inch of
> > the screen. When I attempt to move it over, it's as if it hits an
> > invisible wall and won't go any further. Occasionally, I can sneak it a
> > little further out along the bottom or the top but it will snap back. If
> > I log out and back in, the behaviour disappears... for a while. Open a
> > couple of apps and back we go. The clients running off this server do
> > not do this. Only when on the server itself.
> > 
> > The particulars: Fedora 6 running gdm and either GNOME or KDE as either
> > regular user or root. Hardware is ATI RS480 motherboard with onboard
> > Radeon x200 video. I've used the Xorg ati drivers, ATI Linux drivers and
> > even just configured as a VESA card. Happens at different resolutions
> > from 800 x 600 to 1280 x 1064. CPU is Athlon64 X2 with 2 gb ram. Tried
> > both a regular and USB mouse. 
> > 
> > I'm not even looking for an answer, just a hint of which direction to
> > look further. I 'spect its the video card but I don't have a spare PCI-e
> > or PCI card to play with.
> > 
> > Thanks,
> > William
> > 
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