only 1024x768 resolution can be viewed with TightVNC under Win10 when server connected monitor isn't active

[Rainer Lang]

Hi,
since the upgrade onto Win10 the TightVNC viewer shows a strange
behavior when the Monitor of the connected-to server
is not active (=switched off or [HDMI] interface not active).
When active, the screen can be viewed in full resolution (1920x1200).

If I run Win7 on the same server (multi-boot), then this phenomenon
doesn't occur.
Under Win10 I cannot change the Graphics settings of the Intel HD
Graphics when no HDMI interface is active,
the resolution is fixed on 1024x768.

Looks like someone else has the same (so far unresolved) issue. See link
below.

Your support is appreciated.

regards
Rainer Lang

[John Serink]

I had a similar issue, albeit on WinXP, some years ago. The problem was the Intel video driver making the decision that since it detected ‎no monitor if it was rebooted while the KVM was on another machine.

Solution:

Un install the Intel driver and use the Microsoft default. Fixed.

Cheers,
John



Sent from my BlackBerry 10 smartphone.
From: Rainer Lang
Sent: Monday, 28 September 2015 01:31
To: vnc-tight-***@lists.sourceforge.net
Subject: only 1024x768 resolution can be viewed with TightVNC under Win10 when server connected monitor isn't active


Hi,
since the upgrade onto Win10 the TightVNC viewer shows a strange behavior when the Monitor of the connected-to server
is not active (=switched off or [HDMI] interface not active).
When active, the screen can be viewed in full resolution (1920x1200).

If I run Win7 on the same server (multi-boot), then this phenomenon doesn't occur.
Under Win10 I cannot change the Graphics settings of the Intel HD Graphics when no HDMI interface is active,
the resolution is fixed on 1024x768.

Looks like someone else has the same (so far unresolved) issue. See link below.

Your support is appreciated.

regards
Rainer Lang
--
http://www.tenforums.com/graphic-cards/14775-displayport-switchbox-resolution-problem.html


i5-4690S Intel Processor, HD 4600 Graphics, 8 GB memory
TightVNC 2.7.10, mainboard GA-H97N-WiFi
<http://www.tightvnc.com/release-2.7.10.php>