Actually, I checked. When I uninstall with DDU and reinstall, then reboot the PC, the GPU is there and works fine. I shut down the PC and turn it back on, open Task Manager immediately, and the GPU appears and disappears quickly, and it only shows up if I enable “show hidden devices”. ChatGPT’s reply: Thanks for all the info, now we can clearly see the exact behavior: The GPU works after a DDU install + reboot So the card is NOT dead. After a full shutdown → restart, the GPU disappears at boot So the dGPU is no longer initializing during startup (ACPI / BIOS / EC init issue). This is the typical symptom of the BIOS bug on Medion Deputy P60 models based on Tongfang GK5/GK7 (yes, exactly this model). You did EC Reset + checked VMD → correct, but it doesn’t fix this particular bug. What you’re describing = Known bug on Medion BIOS 1.07 and 1.07RME5 On these BIOS versions, during startup: the GPU power controller (DGPU_PWR_EN) stays off Windows sees the GPU for the first milliseconds → then it disappears it only shows up as a hidden device (because it was never initialized) Exactly your scenario. The only solution that fixes this issue on the Deputy P60 RTX 40xx is: Update the BIOS to version 1.08 or 1.09 These versions specifically fix: dGPU initialization at boot a bug in the ME Firmware an ACPI issue with the MUX switch (even though the menu is hidden) What I found regarding the MD62605 BIOS On the Medion forum, some users say there is no newer BIOS than version 1.07.04RME5 for some Deputy P60 models. community.medion.com+1 Another thread indicates that the “latest BIOS update” for certain P60 models is precisely this 1.07.04RME5 version. community.medion.com+1 On the Medion website (via the community), the product corresponding to your MSN / MD does not have any newer BIOS available publicly at the time of checking. community.medion.com+1 I’m on BIOS 1.07 too, and apparently there’s no newer version. Does anyone have a solution please?
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