Red Hat Bugzilla – Bug 136162
PS2 trackpad on laptop does not work
Last modified: 2015-01-04 17:10:54 EST
From Bugzilla Helper: User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322) Description of problem: kernel fails to recognize internal (PS/2) trackpad (touchpad) but will recognize USB mouse. Device was not recognized when booting the install CD and has not been recognized by any version of the kernel I've built from source. Tried turning on legacy ps/2 (/dev/psaux) and PCI PS2 (pcips2) devices in kernel but still no input from touchpad. Possibly related to bug # 123851 ... on my laptop, there is no external PS/2 port. If 123851 is related, then the kernel could detect the internal keyboard first, then fail to detect the touchpad. Version-Release number of selected component (if applicable): kernel-2.6.8-1.521 How reproducible: Always Steps to Reproduce: 1. Boot from 2.6.5 or 2.6.8 kernel on laptop equipped with internal PS/2 touchpad 2. Let startup script run gpm, or start X window system, or cat /dev/input/mice Actual Results: No response when attempting to use touchpad to move cursor Expected Results: gpm, X - expected cursor to move when touching touchpad cat - expected data to be output to console when touching touchpad Additional info: Plug in a USB mouse and all three tests work as expected when using the mouse - still no response from the trackpad though.
Workaround: get latest kernel source (I'm using 2.6.8-1.521) so you can build PS/2 mouse support as a module. either edit .config file and set CONFIG_MOUSE_PS2=m or use make menuconfig and set PS/2 mouse (under Device Drivers/input devices) to "m" make clean (follow instructions in README file in src directory) make modules_install copy the resulting boot image to where you boot from (/boot for example) and add it to the appropriate boot config file (e.g. boot.conf) mkinitrd to build the matching .img file copy the System.map file there too reboot and select the new kernel gpm will probably be started in your startup script login as root (assuming you boot to init 3 console login prompt) gpm -k (to kill gpm) modprobe psmouse gpm -m /dev/input/mice -t ps2 you should see the cursor appear and now be able to use the trackpad in both console and X. I'm still fiddling with the xorg.conf file and synaptics driver.
Fedora Core 2 has now reached end of life, and no further updates will be provided by Red Hat. The Fedora legacy project will be producing further kernel updates for security problems only. If this bug has not been fixed in the latest Fedora Core 2 update kernel, please try to reproduce it under Fedora Core 3, and reopen if necessary, changing the product version accordingly. Thank you.