由于某种原因，我尝试过的所有发行版（Ubuntu 14.04、Linux Mint 17、Crunchbang、Salix）中，除了 Ubuntu 12.04，我的触控板都被检测为鼠标。以下是相关输出/var/log/Xorg.0.log
[ 25.350] (II) config/udev: Adding input device DLL0662:00 06CB:2985 (/dev/input/event13)
[ 25.350] (**) DLL0662:00 06CB:2985: Applying InputClass "evdev pointer catchall"
[ 25.350] (II) Using input driver 'evdev' for 'DLL0662:00 06CB:2985'
[ 25.350] (**) DLL0662:00 06CB:2985: always reports core events
[ 25.350] (**) evdev: DLL0662:00 06CB:2985: Device: "/dev/input/event13"
[ 25.351] (--) evdev: DLL0662:00 06CB:2985: Vendor 0x6cb Product 0x2985
[ 25.351] (--) evdev: DLL0662:00 06CB:2985: Found 3 mouse buttons
[ 25.351] (--) evdev: DLL0662:00 06CB:2985: Found relative axes
[ 25.351] (--) evdev: DLL0662:00 06CB:2985: Found x and y relative axes
[ 25.351] (II) evdev: DLL0662:00 06CB:2985: Configuring as mouse
[ 25.351] (**) evdev: DLL0662:00 06CB:2985: YAxisMapping: buttons 4 and 5
[ 25.351] (**) evdev: DLL0662:00 06CB:2985: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200
[ 25.351] (**) Option "config_info" "udev:/sys/devices/pci0000:00/INT33C3:00/i2c-11/i2c-DLL0662:00/input/input13/event13"
[ 25.351] (II) XINPUT: Adding extended input device "DLL0662:00 06CB:2985" (type: MOUSE, id 12)
[ 25.351] (II) evdev: DLL0662:00 06CB:2985: initialized for relative axes.
[ 25.351] (**) DLL0662:00 06CB:2985: (accel) keeping acceleration scheme 1
[ 25.351] (**) DLL0662:00 06CB:2985: (accel) acceleration profile 0
[ 25.351] (**) DLL0662:00 06CB:2985: (accel) acceleration factor: 2.000
[ 25.351] (**) DLL0662:00 06CB:2985: (accel) acceleration threshold: 4
[ 25.351] (II) config/udev: Adding input device DLL0662:00 06CB:2985 (/dev/input/mouse0)
[ 25.351] (II) No input driver specified, ignoring this device.
[ 25.351] (II) This device may have been added with another device file.
知道为什么会发生这种情况以及如何防止它吗？
PS. Dell 提供了某种驱动程序http://www.dell.com/support/home/us/en/19/Drivers/DriversDetails?driverid=5V4HN但是在 Ubuntu 12.04 和 14.04 上安装均失败并出现以下消息：
(Reading database ... 147284 files and directories currently installed.)
Preparing to unpack .../oem-touchpad-alps-synaptics-dkms_0.1_all.deb ...
------------------------------
Deleting module version: 0.1
completely from the DKMS tree.
------------------------------
Done.
Unpacking oem-touchpad-alps-synaptics-dkms (0.1) over (0.1) ...
Setting up oem-touchpad-alps-synaptics-dkms (0.1) ...
Loading new oem-touchpad-alps-synaptics-0.1 DKMS files...
First Installation: checking all kernels...
Building only for 3.13.0-24-generic
Building for architecture amd64
Building initial module for 3.13.0-24-generic
Error! Bad return status for module build on kernel: 3.13.0-24-generic (amd64)
Consult /var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/make.log for more information.
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/make.log包含以下内容：
DKMS make.log for oem-touchpad-alps-synaptics-0.1 for kernel 3.13.0-24-generic (amd64)
Fri Sep 12 01:18:44 UTC 2014
make: Entering directory `/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build'
make -C /lib/modules/3.13.0-24-generic/build M=/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build modules
make[1]: Entering directory `/usr/src/linux-headers-3.13.0-24-generic'
CC [M] /var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/appletouch.o
CC [M] /var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/bcm5974.o
CC [M] /var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.o
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:49:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gpio_mouse_probe’
static int __devinit gpio_mouse_probe(struct platform_device *pdev)
^
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:153:22: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘gpio_mouse_remove’
static int __devexit gpio_mouse_remove(struct platform_device *pdev)
^
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:174:12: error: ‘gpio_mouse_probe’ undeclared here (not in a function)
.probe = gpio_mouse_probe,
^
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:175:2: error: implicit declaration of function ‘__devexit_p’ [-Werror=implicit-function- declaration]
.remove = __devexit_p(gpio_mouse_remove),
^
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:175:25: error: ‘gpio_mouse_remove’ undeclared here (not in a function)
.remove = __devexit_p(gpio_mouse_remove),
^
/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.c:23:13: warning: ‘gpio_mouse_scan’ defined but not used [-Wunused-function]
static void gpio_mouse_scan(struct input_polled_dev *dev)
^
cc1: some warnings being treated as errors
make[2]: *** [/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build/gpio_mouse.o] Error 1
make[1]: *** [_module_/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build] Error 2
make[1]: Leaving directory `/usr/src/linux-headers-3.13.0-24-generic'
make: *** [all] Error 2
make: Leaving directory `/var/lib/dkms/oem-touchpad-alps-synaptics/0.1/build'
谢谢
答案1
事实证明这是内核的一个错误，3.13.0-37-generic内核似乎解决了它（至少对于这个触摸板而言）。