Allegedly, on or about 07 July 2013, Diego Vargas sent:
My Toshiba U945-S4140 is running Fedora 19 and Windows 7. Didn't like the pre-installed Windows 8 and I just remove it. They both were playing very well, until I've done two things:
- Update a INF/Chipset deal on the Windows part.
- Update the kernel on Fedora.
Since the first Update, the touchpad have stopped working.
If by INF you mean the info file on the Windows drive, that's only a text file for how Windows will use the hardware. If the Windows update changed the firmware in the hardware, then that may well affect Fedora's use of the hardware, too. It depends on what it changed.
You can see if an updated Fedora kernel was the cause of your problem by booting up using an older kernel. Use the boot menu, and pick one. By default, Fedora keeps 2 or 3 kernels installed, for just this sort of thing. Don't remove old kernels when you install a new one, just to save space, you create headaches for yourself.
I tend to keep 4 or 5 old kernels installed. That lets me go back and check on things I haven't noticed.