I'm having trouble with my desktop not waking up from sleep mode. Each time, I have to press the power button to turn the computer back on. I ran a tool called WhoCrashed, and it reported a bug check code: 0x9F, which it labeled as "driver power state failure." This message indicates that the driver is in an unstable power state, possibly due to a hardware issue or a problematic driver. The report mentioned that this could be related to a timeout or thermal issue. I'd love some help figuring out what the root cause is and how I might fix this myself. Thanks in advance! Also, here's my dump file for reference: [my dmp file here](https://www.mediafire.com/file/7sejn4ub1brnwth/020626-8078-01.zip/file).
3 Answers
According to the dump file, the issue seems to stem from your WiFi driver. It appears you're using an older version from 2021, while the latest one available on your motherboard's support page is from 2024. You should try downloading and installing the updated MediaTek WiFi driver. Also, your motherboard BIOS seems to be outdated, and it's a good idea to keep it up to date. These are common fixes for DRIVER_POWER_STATE_FAILURE errors.
Just to add, I had a similar problem before. I turned off fast startup and ran the System File Checker (sfc /scannow), which found some corrupt files, but it couldn't fix everything. I used the DISM tool with a fresh Windows installation media, and it repaired the issues. After that, sfc showed no integrity violations, and it resolved my power state failures.
Have you checked if fast startup is enabled? It's worth turning off. Also, make sure all your drivers are up to date, particularly those related to power management, as they can lead to such issues. Is this problem happening every time you put your computer to sleep, or just occasionally?
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