From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.1b) Gecko/20020721 Description of problem: I have just upgraded my graphics card from a tnt2 card to a geforce4 mx card. Hardware tool detected the card however on using gnome the mouse has disappeared. I now have to reinstall redhat linux. Version-Release number of selected component (if applicable): How reproducible: Always Steps to Reproduce: 1.Put new graphics card in 2. 3. Actual Results: Mouse is lost Expected Results: I would expect the set-up for an x-windows configuration, with a opportunity to test eveything should occur after hardware probing. That is the x-windows configuration that was in the initial install process should be seen again. Additional info:
*** Bug 78574 has been marked as a duplicate of this bug. ***
To fix this you can run redhat-config-mouse, and select the correct mouse you need. If you have trouble starting the program without a mouse, remember alt-f2 will bring up a window that lets you run commands. Alternately, you can edit your XF86Config manually as root. Find the "mouse" subsection, and find the "Protocal" subsection and select the correct protocal for your mouse. In my case the line was: "Protocal" "PS/2" and should have been "Protocal" "ExplorerPS/2" Because I have a MS Intellimouse explorer. You can check the file /usr/X11R6/lib/X11/doc/README.mouse for some information about mouse protocols and setting up mice.
With the change to the input layer for PS/2 and USB mice in the 2.6 kernel, this should no longer be an issue in releases later than Fedora Core 2. Closing.