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

James P. Kinney III jkinney at localnetsolutions.com
Tue Feb 6 09:15:42 EST 2007


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.

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.

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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> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
-- 
James P. Kinney III          
CEO & Director of Engineering 
Local Net Solutions,LLC        
770-493-8244                    
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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