On 08/30/2013 02:56 AM, ken wrote: > Also, for each boot instance, save off and compare /var/log/Xorg.0.log > as this is where such problems will be reported. (To "save off" here, > you should do something like "cat Xorg.0.log> Xlog.kernel.1".) > > > On 08/30/2013 02:28 AM brandon whitehead wrote: >> Hello Ahmed, >> Nothing else besides kernel has changed? I'd reboot and revert to previous >> kernel to test the issue. >> -Brandon >> >> >> On Sat, Aug 31, 2013 at 2:43 AM, Ahmed<ahmed.daud500 at gmail.com> wrote: >> >>> Hi there, >>> >>> i recently installed centos 6 64bit version on my HPProBook4530s >>> Laptop. i then issued the command to update the kernel only. it updated >>> the kernel to latest stable 2.6.32-358.14.1.el6.x86_64 kernel. >>> After update what i got is that my touchpad is not working. i am 1000% >>> certain that new kernel caused this problem. so, what i should do with >>> the kernel to overcome this problem or any other suggestion? >>> >>> Warm Regards, >>> Ahmed Dawood >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> http://lists.centos.org/mailman/listinfo/centos >>> >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos Thanks Ken, i tried to got a clue of problem in Xorg.0.log file in both kernels. but i was unable to get it. The thing i notice is that in old kernel Xorg log file is (II) config/hal: Adding input device ImPS/2 Synaptics TouchPad (II) XINPUT: Adding extended input device "ImPS/2 Synaptics TouchPad" (type: MOUSE) Where in the new kernel Xorg file contains (II) config/hal: Adding input device SynPS/2 Synaptics TouchPad (II) XINPUT: Adding extended input device "SynPS/2 Synaptics TouchPad" (type: TOUCHPAD) so does it make a difference?