[Nancy1999]

Here a quote from the link I gave:

When it comes to figuring out which genes create deafness, one size does NOT fit all. Genetically speaking (and we are), there are four different types of genetic occurrences that can cause a puppy to be born deaf. So let's talk about these genes, using as few big words as possible.

The first occurrence involves the piebald and/or extreme piebald genes. These are pigmentation genes, meaning they help determine a dog’s coat color. The red flag here is white coat color. In effected breeds, a dog with large amounts of white in it's coat, and especially on it's head, is more likely to be deaf than it's more colorful littermate. I say "more likely" because it's still unclear exactly how these genes are transmitted.

To further complicate things, not all breeds which carry these genes report hereditary deafness. If you look at the list of effected breeds, you’ll notice that the Samoyed isn’t on it. (The Samoyed is an all white dog.) Therefore, it’s not accurate to say that only white dogs have problems with hereditary deafness.
Effected pups can have partial or total hearing loss. I haven’t found any studies that show a link between piebald genetic deafness and additional health problems (other than problems normally experienced by a particular breed). Rather, they are healthy dogs who can't hear. Examples of effected breeds are Dalmatians, Boxers, and Jack Russell Terriers.

Piebald/Extreme Piebald Summary:

involves piebald or extreme piebald genes

in effected breeds, predominately white dogs are more likely to be deaf

causes partial and total deafness

no additional health problems in effected dogs. . . . DEAF PUPPIES