Less than a week after launching its new Surface Pro tablet last month, Microsoft found itself dealing with complaints from new owners, who had found that the device was suffering from bouts of narcolepsy.
Numerous users on Reddit and the Microsoft Community forums said that their Surface Pro devices were spontaneously going to sleep or 'hibernate' mode, despite having plenty of battery life left, and in some cases, while still plugged into the mains. Some users said that the issue had caused them to lose some of their work when it happened - not ideal for a device that Microsoft touts as a productivity booster.
The good news is that Microsoft has apparently found the cause of the problem, as company employee 'BrianH' posted on the Community forum thread on Monday:
7/10 Update: Wanted to provide a quick update, we believe we have identified the issue, and are currently testing a fix that will be delivered via Windows Update.
In a further post today, he added:
7/12 Update: Just wanted to provide additional information that this fix was not included in the 7/11 Windows update, as testing still continues. I will update this posting when the update is available, also the Surface Pro Update History page will also be updated with the details when it launches.
The bad news, then, is that Microsoft doesn't yet have a fix ready to roll for the Surface Pro's sleep disorder - but it's clearly making progress on that front. There's hope, therefore, that Microsoft will fix the problem far more quickly than the months it took to resolve the sleep issues on the Surface Book and Surface Pro 4 after their launch in 2015.
Source: Microsoft Community