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DELL XPS15 9500 Thunderbolt3 not working anymore after latest bios update!
Hello together,
I own a wonderful DELL Xps 15 9500 with the i7 core 4k Display. I use it with UEFI Bootloader for Ubuntu and Windows.
i also own 2 WD19tb dockingstation for my 2 workspace. Till mid of september everything worked perfectly.
Then i did a bios update. Since then Windows and Ubuntu are not recognizing the Thunderbolt devices anymore - both windows and Ubuntu are printing that there are Thunderbolt3 issues.
what i tried so far:
* testing docking station with macbook - both working properly.
* turning on and off the thunderbolt in bios - not working - but at least docking station is recognized as usb3 device.
* i did a bios degrade to 1.23 (current version is 1.24). - no change.
* i tried this hardreset (15-20seconds ) - no reaction.
* i tried the no security option for tb - no change.
so far no idea what else i could try.
has anyone an idea what else i could try ?
thanks in advance!
fuxey
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November 19th, 2023 10:10
Hi, I solved the issue by opening the notebook and disconnect the battery for 24h. after that it works perfectly again.
meanwhile i ordered a macbook.