I upgraded to Kernel version 2.6.15 and have now lost sound. I recompiled the Kernel and added to LILO. This Kernel has support for the Aurreal AU8810. Luckily I still have a couple other Kernels to boot from that everything is working on. Also when I boot to the 2.6.15 Kernel the boot proccess screen resolution is horrible. I ran ALSACONF and it was unable to detect my sound card.

When you "upgraded", how did you go about it?

The recommended method would be to copy the original
.config file to the new kernels directory and then run
make oldconfig
afterwards maybe verify the results with
make menuconfig


Cheers,
Tink

Well I actually started to go through the make oldconfig but decided to just start with the Kernel fresh I will go ahead and try the oldconfig method to see if that resolves my problem. Thank you much.

Are you using the alsa drivers that are (1) in the kernel, (2) part of the alsa-drivers package or (3) compiled and installed from sources?

If it's 1, then you may have mis-configured the kernel options.

If it's 2, does the package version match your kernel version. The driver package installs the modules under the kernel version the package was built for. For example, alsa-driver-1.0.9b_2.6.13-i486-1 puts modules under /lib/modules/2.6.13. You probably need to include the alsa code from the kernel or compile from sources since this isn't a path your new kernel can use.

If it's 3, you probably need to re-install the modules so they're available to your new kernel. You may need to re-run configure and make prior to running `make install-modules`.

WARNING: I have had problems with sound while upgrading to 2.6.15 also and I'm not pretending to have all (or even most) of the answers

I have recompiled my kernel and my sound is now working. However my initial screen resolution when the computer starts the booting proccess after choosing which kernel to boot to ih large and ugly. When I boot to my older kernels the resolution is great and diplays the penguin at the top of the screen. When the computer boots now I get no penguin and large scrolling text.

If I m not mistaken you have to enable this on kernel compile

Symbol: FB_VESA [=y] │
│ -> Device Drivers │
│ -> Graphics support │
│ -> Support for frame buffer devices (FB [=y])

and this too
-> VESA VGA graphics support

Actually I believe you are exactlly right. I think I took this out of the Kernel thinking I didnt need it when I recompiled. thank you.