Sometimes, depending on the subject of a thread, there will be a hodge-podge of suggestions as to how to fix whatever it is the thread is about. Sometimes none of the hodge-podge is of value in fixing the issue, and other times, it's all valuable.
Either way, getting a linux OS configured and working 100% the way you like it to can take a LONG time, and a lot of headaches, but if a person is not willing to read a lot, research for themselves, and TRY to make things work, then having people volunteer what they believe to be helpful information will not help, whether the information os actually helpful or not.
Virtually EVERY packaged driver out there, either source or compiled, contains some form of documentation, either as a simple README file, or a full set of docs. This is always the first thing to read. If there are docs of any sort included with the driver you got for the modem, read them all, and understand them. If there are parts you don't understand, or commands that don't work as expected, then ask for help. This sort of documentation is what you can call your 'walk through'.
Some hardware out there just won't work with Linux. Period. One fine example of this phenomenon is with dial-up modems, especially on-board 'WinModems'. But for all the hardware that *can* work, there are varying degrees of reading, headaches (or not), and success.
I can tell by looking at your lspci output, that everything on that machine will work, the sole exception being the Broadcom items, which I don't know either way about. KPPP (I use that) is only useful once your driver is installed and if needed, a symlink has been created pointing to the newly created /dev item associated with the modem.
My old motherboard had the same i845 chipset as you have, only I had no onboard VGA and a different brand of modem/NIC. The suggestion above by Onebuck worked for the AC97 sound on my old board-- simply configure the mixer, unmute the master and PCM and turn up some volumes, and save the settings.
For video, you're probably using some sort of default driver, a VESA driver, or maybe even Mesa-3D, I don't know, but there are Intel video drivers out there. Please tell us what driver you are using for video; you can find this in the file /etc/X11/xorg.conf on the 'Driver' line. Then someone may tell you what would be the best driver to use, though surely Google will also have this information.
Best of success,
PS - However the video driver angle works out, don't expect any fireworks from an onboard i845 video card-- it's a decent device, but not mind-blowing by any stretch.
Last edited by GrapefruiTgirl; 07-23-2009 at 02:46 PM.