New Linux kernel 2.6.25.7
Friday, 18. July 2008, 15:02:39
After some time of recompiling this kernel for my Ubuntu distro, this is not the latest one anymore. The compilation went fine, following the instructions. "menuconfig" has been used to create a new configuration file. All the apparent unnecessary modules like the long list of sound drivers and modules for Toshiba, Sony Vaio and Fujitsu-Siemens and some things for IBM computers and servers have been removed. After the first compilation, the wireless didn't work. I found that the new kernel uses the iwl3945 driver instead of the ipw3945 used by the original Ubuntu kernel (2.6.22-14). Then I selected the correct settings for iwl3945 in the new kernel's confg file and downloaded the firmware from http://intellinuxwireless.org. After compiling and reinstalling the new kernel, there was still no success to connect. After a lot of searching on the web, I've found that there needs to be a startup file in the folder modprobe.d under /etc, called "iwl3945" and with the line "options iwl3945 disable_hw_scan=1". On the next startup, the "NetworkManager" applet performed a search and connection had been established to a wireless hub. It seems that the module gets confuse about which device to use, eth1 or one called wlan0_rename, which I think it is supposed to use. It changes to the other one after a restart. This seems not to be serious, but the setting needs to be changed in the "Firestarter" personal firewall everytime, or else the firewall icon will stare with a red eye.
Screen brighness could not be controlled, not from the function keys at least. There was no loaded module called "video" as during a session with the original kernel .After a lot of searching it was found that another display module needs to be selected during kernel configuration, which in turn makes the "video" module visible in the "menuconfig" program, and thus selectable.
video module
this option was not available unless "Video output controls" have been selected, as in the next image.
Video output controls
After the kernel has been compiled with the video module it is possible to control the screen brighness with the function keys (Fn + f7/f8) and there is even an on-screen display!
Screen brighness could not be controlled, not from the function keys at least. There was no loaded module called "video" as during a session with the original kernel .After a lot of searching it was found that another display module needs to be selected during kernel configuration, which in turn makes the "video" module visible in the "menuconfig" program, and thus selectable.
video module
this option was not available unless "Video output controls" have been selected, as in the next image.
Video output controls
After the kernel has been compiled with the video module it is possible to control the screen brighness with the function keys (Fn + f7/f8) and there is even an on-screen display!
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