Connect a Thunderbolt Display to windows 8 desktop
I've been spinning around with this question but couldn't find the answer. Hope someone here could help.
I have been trying to connect my Windows 8 desktop to a Thunderbolt Display 27" without success. My desktop only has HDMI and VGA output. Hence, I naturally tried two options:
1, Desktop <==(VGA)=adapter=(Thunderbolt)==> Display
Result: Thunderbolt screen remains blank/black/not turned on when I plug it in. Also tried to restart the desktop while the two are connected, no luck!
2, Desktop <==(HDMI)=adapter=(Thunderbolt) ==> Display
Results: Exactly the same as above.
Any suggestion folks?
P/S:I've paid $2K for two of my Thunderbolt displays thus don't want to throw them away.
Thunderbolt is not backwardly-compatible with any other display technology. It is an active technology, all before it were passive. It is a combination of video & PCIe.
You can connect Thunderbolt to DisplayPort, but not the other way round.
From how do I connect an Apple Thunderbolt display to a PC?
If the Wikipedia article is to be believed (and I do believe it is correct based on what thunderbolt is), then your configuration will not work.
Compatability
Apple Thunderbolt Displays, like the video input on Thunderbolt iMacs, drop compatibility with all previous standards, including VGA, DVI, and DisplayPort.[3] As such, they cannot be connected to computers lacking a Thunderbolt port, including pre-2011 Macs and the vast majority of PCs.
Thunderbolt is not the same as Display Port. Therefore you can only connect thunderbolt equipped Mac's (or some PC's with thunderbolt hardware and appropriate drivers) to the Thunderbolt display.
From the Apple Mini DisplayPort FAQ
- My computer has the same connector but the symbol is different, what does that mean?
Some Apple computer have a Thunderbolt port instead of a Mini DisplayPort. Computers with a Thunderbolt port will have the following symbol next a port although the port physically appears the same as a Mini DisplayPort:
Thunderbolt ports:
Are compatible with all of the Mini DisplayPort adapters referenced below in question 5 and with Apple Mini DisplayPort equipped displays. Support adapters like Apple's Thunderbolt to Gigabit Ethernet Adapter and Thunderbolt to FireWire Adapter which are not otherwise compatible with Mini DisplayPorts. See Thunderbolt ports and displays: Frequently asked questions (FAQ) for more information on Thunderbolt.
So with your adaptor you can drive a DisplayPort based monitor to your PC, but not a thunderbolt display as it lacks support for DisplayPort. That's why it didn't turn on and work.
Some Googling and I haven't yet been able to find a USB based thunderbolt adaptor, it seems there is talk of such a device using USB 3.0 to thunderbolt although at reduced speeds. There are a few thunderbolt PCIe cards available and some PC motherboards support thunderbolt.
A Thunderbolt (TB) display is a bit of a misnomer. It's actually a Mini Display Port (mDP) monitor with TB connectivity.) So, in effect, your Apple TB monitors are just really nice high res DP monitors. We know this to be the case because on this forum related to the Surface Pro 3 and the Apple TB display, a user says that the video works as it was mirroring his display. TB, obviously dosen't work because there is no TB on a SP3
Thunderbolt is a multiplexing of tree different signals:
- Power
- DisplayPort
- PCIe
The signal we are concerned with here is DisplayPort. PCIe and power don't come into play.
Based on your description, your desktop has two displays out, VGA (analog) and HDMI (digital). mDP is digital.
So connecting
VGA ====> DP is going from analog to digital. You can't do this without upscaling the resolution. It's just not worth the time an expense for the results you are going to get.
HDMI ====> DP is going from digital to digital so the results are better, however the signaling is completely different so an active converter is required. You can do this converstion by using a device like this
I have never seen the above mentioned device used in a daisy chain situtation so you may have to test.
A more ideal situation would be to install either a Thunderbolt adapter or aa DisplayPort adapter in your desktop:
- Dual DisplayPort: NVIDIA NVS 310 You will need DP to mDP adapters
- Quad mini Display Port: PNY NVIDIA NVS 510 This will support 4 monitors and you won't need DP to mDP adapters
- Thunderbolt PCIe Adapter: HP SMART BUY THUNDERBOLT 2 PCIE 1PORT I/O F3F43AT This will allow you to use the TB tech built into the Apple TB display
No matter which direction you chose to go, you need to get native DP signals to those monitors from the PC and VGA and HDMI simply don't support it.