Compile Linux kernel 2.6.21.5

Compile Linux kernel 2.6.21.5 -- general Linux technology-Linux programming and kernel information. For details, refer to the following section. Using a configuration recommended for Dell 640 m labtop on the Internet, the customization is successful, but my windows partition cannot be loaded at startup. The error message is:

Unable to load NLS charset gb2312

So make xconfig again to search for nls and add support for gb2312.

After the machine is restarted, the ntfs partition in windows can be mounted normally.

In addition, the problem is that after the startup, all X Windows do not have a title bar and cannot enter characters in the simulated terminal.

In the original state, the 3D effect is configured, so the above problem occurs. This function is removed from the original kernel and the problem is solved. The simulated terminal can also enter characters, but the question that arises is how to enable it again? Is there any configuration in the kernel?

3D effect configuration. Enable the following options in Kernel configuration:

Device Drivers --> Character devices --> Direct Rendering Manager (XFree86 4.1.0 and higher DRI support) (DRM) --> Intel 830 M, 845G, 852GM, 855GM, 865G --> i915 driver (DRM_I915)

The problem I encountered now is that my laptop built-in touchpad is not available and there is no response. What should I do?

Some netizens compiled PS/2 Mouse in the kernel (I loaded the Module). After the startup, modprobe-r psmouse then modprobe psmose, then I can use it. When I send this modification, I have compiled the ps/2 mouse into the kernel. Check whether the input command is unnecessary after the restart.