Probably. But that's the first thing that came to mind; docks can be very small now*, and might have come with the laptop. She may have just left the dock on a table, plugged in, and always used the laptop there. If so, the dock appears to the laptop as headphones, and the audio would be routed to the headphone jack on the dock, rather than the laptop speaker.
If there's no dock, then Glatt's suggestion is the likely culprit, though, as he says, it would be an extremely unusual power saving mode that turned something off when there was power.
[eta] * Laptop power cables already come in two parts (wall-brick & brick-laptop); she may consider the dock to be part 3.
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|...............| We live in the nick of times.
| Len 17, Wid 3 |
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