On Sat, 23 Mar 2013 07:24:25 -0700 Akemi Yagi <amyagi at gmail.com> wrote: > On Sat, Mar 23, 2013 at 7:04 AM, Marko Vojinovic <vvmarko at gmail.com> > wrote: > > I have a Fujitsu Lifebook U series laptop running updated CentOS 6.4 > > (64bit), and the touchpad doesn't work. It's a new laptop, the > > touchpad works correctly in Fedora 18 Live (given the kernel > > parameters below), no hardware problems. > > > > I searched the web all around, and it's a known issue for several > > laptop models. The only solution, quoted everywhere, it is to > > append the > > > > i8042.notimeout i8042.nomux > > > > to the kernel parameters. The problem is that the latest CentOS6 > > kernel (2.6.32-358.2.1.el6.x86_64) doesn't appear to recognize > > these. Or it otherwise ignores them. I did append the parameters, > > but (unlike in Fedora) the touchpad is still dead. > > Just did a quick check. The current CentOS kernel (centosplus kernel > as well) seems to have code for i8042.nomux but not i8042.notimeout in > linux/drivers/input/serio/i8042.c . > > You might want to give ELRepo's kernel-ml a try: > > http://elrepo.org/tiki/kernel-ml > > It is the latest mainline kernel that runs on CentOS. The mainline kernel works beautifully, thanks! :-) Now the only question is how does it coexist with the regular kernels? More precisely, when I do a "yum update", and there are new kernels available in the update, how will they be ordered in /boot/grub/grub.conf, and which one will be the default on a subsequent boot? I have enabled the elrepo-kernel repository, so both types of kernels will get updates. However, I want to boot only from the mainline kernels, never from the regular ones. How should I configure grub and/or yum, to make this stick? Thanks again for the advice! :-) Best, :-) Marko