OpenSUSE Hardware :: Keyboard Special Keys For Audio Not Working 11.4

I've been making some progress with my new Dell Inspiron n5110 and the OpenSUSE 11.4. After searching through the net I found some drivers to get my laptop going. Now I'm facing the following problem: I want to adjust the audio volume using a special key combination on my laptop(fn+F11 to rise, fn+F12 to lower, and another key that works as mute). Although the sound itself works fine, when I use these keys the have no effect on the volume. It stays exactly the same. Some I ask myself are the drivers for the sound card installed? In "Playback Devices" there are two devices: Internal audio analog stereo(which is the one that is working) and GF108 High Definition Audio Controller Digital Stereo(HDMI). The lsusb provides:

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 8086:0189 Intel Corp.
Bus 001 Device 004: ID 1bcf:2880 Sunplus Innovation Technology Inc.
Bus 002 Device 003: ID 0bda:0138 Realtek Semiconductor Corp.
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

So I searched for some Realtek drivers and came up with nothing. If you have any idea on how to get my audio running or how to make the special keys working, please let me know!