Author: parsec
Subject: Z170 Extreme4: Monitor show no picture - sometimes
Posted: 02 Nov 2016 at 11:46pm
I don't recall anyone having an issue the Intel integrated graphics like you are having.
Your description of the situation is very good, but the somewhat inconsistent nature of the issue makes it more difficult to figure out. Plus the PC's graphics work fine with a TV.
To be 100% clear, it is only at the start up (and restart/reboot??) that the Hyundai monitor stays black. At some point there will be an image on the screen, and you can use the PC normally, is that right?
Given what you've described, I would tend to think it is the Hyundai monitor that is the problem, in the sense that it is not compatible for some reason with the Intel Skylake graphics. Or partially not compatible. More testing is needed to reach a conclusion.
The point wardog made about the 7.00 Kaby Lake UEFI/BIOS version (for your board) is worth trying, meaning going back to the 3.40 UEFI. We've seen a few weird problems on some Z170 boards with these UEFI versions, which may be an Intel problem with this update. Another mobo manufacture had to reissue all of their Kaby Lake UEFI/BIOS versions, due to problems. Did you ever use your Z170 PC with that monitor without the 7.00 UEFI installed?
I know you've tried different cables when you tried different inputs and outputs, but unless you are always using the same cables throughout your testing, then a cable problem might still be the cause, however unlikely.
Can you test the Z170 Extreme4 PC with the Lenovo T500 Thinkpad as the monitor? The more you can test that PC with other "monitors", will add more examples of it working or not working. If you discover the only monitor that has a problem is the Hyundai, then it is probable that it has a compatibility issue with the Intel graphics.
The monitor may work as you said, but it might be having a problem locking onto the video signal from the Intel graphics, or other parts of it circuitry are beginning to go bad. DVI to DVI, HDMI to HDMI, and DisplayPort to DisplayPort are digital signal interfaces, that use low voltage signals.
Edited by parsec - 7 hours 54 minutes ago at 11:46pm
Subject: Z170 Extreme4: Monitor show no picture - sometimes
Posted: 02 Nov 2016 at 11:46pm
I don't recall anyone having an issue the Intel integrated graphics like you are having.
Your description of the situation is very good, but the somewhat inconsistent nature of the issue makes it more difficult to figure out. Plus the PC's graphics work fine with a TV.
To be 100% clear, it is only at the start up (and restart/reboot??) that the Hyundai monitor stays black. At some point there will be an image on the screen, and you can use the PC normally, is that right?
Given what you've described, I would tend to think it is the Hyundai monitor that is the problem, in the sense that it is not compatible for some reason with the Intel Skylake graphics. Or partially not compatible. More testing is needed to reach a conclusion.
The point wardog made about the 7.00 Kaby Lake UEFI/BIOS version (for your board) is worth trying, meaning going back to the 3.40 UEFI. We've seen a few weird problems on some Z170 boards with these UEFI versions, which may be an Intel problem with this update. Another mobo manufacture had to reissue all of their Kaby Lake UEFI/BIOS versions, due to problems. Did you ever use your Z170 PC with that monitor without the 7.00 UEFI installed?
I know you've tried different cables when you tried different inputs and outputs, but unless you are always using the same cables throughout your testing, then a cable problem might still be the cause, however unlikely.
Can you test the Z170 Extreme4 PC with the Lenovo T500 Thinkpad as the monitor? The more you can test that PC with other "monitors", will add more examples of it working or not working. If you discover the only monitor that has a problem is the Hyundai, then it is probable that it has a compatibility issue with the Intel graphics.
The monitor may work as you said, but it might be having a problem locking onto the video signal from the Intel graphics, or other parts of it circuitry are beginning to go bad. DVI to DVI, HDMI to HDMI, and DisplayPort to DisplayPort are digital signal interfaces, that use low voltage signals.
Edited by parsec - 7 hours 54 minutes ago at 11:46pm