Troubleshooting house freeze

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http://www.linuxquestions.org – Hi All, I'm running kernel 3.9.6 on an otherwise stock Slackware64 14.0 (libdrm and xf86-video-intel are the versions from /testing).I've had a couple of mouse freezes (in KDE)-the cursor freezes and the buttons are unresponsive. These did not occur at all except with the 3.9 kernel. Has anyone else experienced this? What's the best way to identify the cause? I've had a look at the system log, the kernel log and the xorg log but can't see anything obvious (at least to me). (HowTos)