"David: These are labelled with a headphone on my laptop (see h20424.www2.hp.com/program/cnb/kr/ko/resources/dv7-new-brochure.pdf) It has the same headphone symbol as on page 3. Page 4 clearly labels it as having 2 headphone jacks and 1 microphone jack."
According to your BIOS, these are the jacks you have:
Node 0x0b: [Jack] Mic at Ext Front
Node 0x0f: [Jack] Line Out at Ext Front
Node 0x1e: [Jack] SPDIF Out at Ext Front
...and internal mic and speakers.
I'm wondering if you really have two headphone jacks, maybe one of them is digital out / spdif only?
Hmm, I'm unduplicating due to the last comment:
"David: These are labelled with a headphone on my laptop (see h20424. www2.hp. com/program/ cnb/kr/ ko/resources/ dv7-new- brochure. pdf) It has the same headphone symbol as on page 3. Page 4 clearly labels it as having 2 headphone jacks and 1 microphone jack."
According to your BIOS, these are the jacks you have:
Node 0x0b: [Jack] Mic at Ext Front
Node 0x0f: [Jack] Line Out at Ext Front
Node 0x1e: [Jack] SPDIF Out at Ext Front
...and internal mic and speakers.
I'm wondering if you really have two headphone jacks, maybe one of them is digital out / spdif only?