Re: Jerky Mouse Movement in Xorg

On Thu, 2012-03-22 at 05:21 -0600, TP Reitzel wrote:
> I'm using a recent version of Debian's GNU/HURD DVD and upgraded to 
> current. My main problem lies with the very jerky movement of the mouse 
> cursor. If I move the mouse UNNATURALLY slow, the cursor doesn't jerk. 
> Outside of X and within the HURD's console, the movement of the cursor 
> is extremely smooth so the problem lies with using this PS/2 mouse in X. 
> I've tried adjusting some of the acceleration factors within X 
> ("AccelerationProfile" in xorg.conf) with some reduction in the 
> jerkiness, but not nearly enough. Apparently, X can't read the mouse's 
> movement accurately if the mouse is moved too rapidly. I'd certainly 
> appreciate any input from readers in order to solve or heavily mitigate 
> the jerkiness. BTW, I'm favorably impressed with the current state of 
> Debian's version of GNU's HURD. I'm looking forward to a formal release 
> of the HURD by Debian this year if possible. TIA

Hello,

Thanks for your interest in GNU/Hurd.

One thing I used to get a reasonable mouse movement was to enable the
software cursor. Add to /etc/X11/org.conf:

# Use when the mouse cursor looks strange/behaves badly.
Section "Device"
  Identifier "Configured Video Device"
  Option "HWCursor" "off"
EndSection

BTW: do you already use the C-A-bksp workaround to exit from X
properly?

# Exiting X when xinit cannot shut down X (as user):
Section "InputDevice"
  Identifier "Generic Keyboard"
  Option "XkbOptions" "terminate:ctrl_alt_bksp"
EndSection

In the future, I think you should send your questions to bug-hurd or
debian-hurd since this list is very low traffic right now (but that
might change).