I have an hp z22i ips display, and when i connect it to mac, it works fine. But when i switch over to windows 10, it says no signal. Windows 10 sees the monitor, but in intel command center it says that it's disabled, and in windows 10 settings it says 'display 2 isn't active'.
MacBook Pro Retina
Most USBc (not Thunderbolt3) cables are passive and rely on the drivers. Many USBc adapters will strip DP from the connection, if they also have an HDMI output, instead of passing them through. In your case, you are also converting HDMI-to-DVI, which breaks HDCP.
If you have a USBc-to-DP cable, and are able to eliminate the Saetchi, it will help eliminate the extra hop (in Windows case). The drivers for macOS and Windows are different.
For example, see [Bootcamp Win10] USB-C to Displayport con… - Apple Community as reference. Unless the adapter(s) clearly state that they will pass DP over USBc, I assume they will not.
Most USBc (not Thunderbolt3) cables are passive and rely on the drivers. Many USBc adapters will strip DP from the connection, if they also have an HDMI output, instead of passing them through. In your case, you are also converting HDMI-to-DVI, which breaks HDCP.
If you have a USBc-to-DP cable, and are able to eliminate the Saetchi, it will help eliminate the extra hop (in Windows case). The drivers for macOS and Windows are different.
For example, see [Bootcamp Win10] USB-C to Displayport con… - Apple Community as reference. Unless the adapter(s) clearly state that they will pass DP over USBc, I assume they will not.
Since you have an Intel GPU, you may want to download the Intel Display Control and check. Normally, this is negotiated between the source and display based on EDID.
On a 2018 rMBP, if I directly connect a USBc-to-DP cable, I get DP output, but if I use SMK-Link-Mini-Docking-Station-VP6920 (similar to Saetchi, and uses a RealTek chipset), the USBc Output does not support DP. I can connect the HDMI to the same monitor for a 2K connection.
There is not much of a difference between the 2018 and 2016 USBc Macs, when outputting DP or HDMI protocol. The same thing is true for the Apple USBc-to-DigitalAV adapter.
Please try the direct cable and test. You should still be able to connect USB devices to the Saetchi hub, and also use the HDMI output.
Another test would be to connect the HDMI output of Saetchi to a HDMI TV and verify that you will get display output correctly (without the DVI conversion). Most modern TVs with HDMI, should support HDCP.
siebveer wrote:
After i connected it to my tv, it suddenly also worked on the monitor, but with a lot of weird pixels and the screen keeps going black for a second or two, wich didn't happen on mac.
Edit: with weird pixels i mean flashing yelow or green 'glitching' pixels all over the screen
The synchronization between the monitor and the BC/Windows driver seems to be a problem. From https://www.displayspecifications.com/en/model/2b64795, it says 50-76Hz Vertical, and 24-94kHz Horizontal.
Can you run a SMC reset on the Mac and retry?
Your monitor has (https://support.hp.com/us-en/document/c03790666#AbT4)
If you are using a HDMI-to-DVI cable, you may see HDCP-related issues. The Saetchi adapter is HDMI 1.4b. If you have a USBc-to-DP connector, try that as an option. Some adapters that have an HDMI out, may not allow DP output over USBc output.
Also, as a test, you may want to directly connect the USBc port from the Mac to the DP port on the monitor via a USBc-to-DP cable.
Without disconnecting, switch to macOS and check if the Monitor works as expected. Boot back into Windows without disconnecting and check if you still see weird patterns.
Do you have a different HDMI-to-DVI cable that you can use for testing?
After i connected it to my tv, it suddenly also worked on the monitor, but with a lot of weird pixels and the screen keeps going black for a second or two, wich didn't happen on mac.
Edit: with weird pixels i mean flashing yelow or green 'glitching' pixels all over the screen
I want to check if there is an issue with timing signals on the current adapter and the Windows driver. The pixellation and weird colors can be due to timing issues. DVI adapters have different types. If you do not have a different cable, and the TV works properly on HDMI, then it leaves only the HDMI-to-DVI cable. The EDID that the display provides to the Mac is a factor. Are you planning to order a USBc-to-DP cable?
I looked at a USBc-to-DP cable on Amazon.nl. I found this USB-C-DisplayPort-Kabel-4K-60Hz, which should work, but I am surprised at the price. You may want to consider investing in a USBc-to-DP cable (not necessarily this one).
siebveer wrote:
I now realise that this is not the case, as i have had the same issue before with a newer monitor. I have also found that sometimes the pixelation on my monitor is better than other times
How long have you owned this monitor?
and every time i move my laptop, the monitor disconnects for a short time.
This indicates a loose-fitting cable connection between the Mac and monitor. Also, be aware that USBc uses the same 2.4GHz frequency as some of the more common BT/WiFi/DSS/Microwave sources of RF.
See
for reference.
Can you post a link to exact adapter you are using?
I use DisplayPort-Thunderbolt-Adapter-Gold-Plated-Compatbile for with a 2018 13-in MBP for both Windows and macOS. I use two Dell U2715H monitors. They work fine, without any issues. I have used the cables for almost 3+ years.
If you order them on-line, check the return policy, before you spend your money. I had 30 days to return these in the US on Amazon.com.
I read on an old forum that someone fixed the pixelation problem by changing the color depth to 16-bit on windows 7, and maye my monitor can't handel 32-bit color depth. But if i understand correctly, you can't change to 16-bit color depth in windows 10 right?
I now realise that this is not the case, as i have had the same issue before with a newer monitor. I have also found that sometimes the pixelation on my monitor is better than other times, and every time i move my laptop, the monitor disconnects for a short time.
External monitor isn't working on windows 10 bootcamp, but works fine on mac.
