![]() ![]() Purpose This article provides a troubleshooting methodology outlining typical issues with the Horizon Blast Protocol. ![]() Although this problem is relatively common, it is usually easy for virtual desktop administrators to resolve. Symptoms A Black or Grey Screen when connecting to a Horizon View desktop with the Blast Protocol resulting in a disconnect. Most of the time, the VMware Horizon black screen problem can be attributed to one of five simple configuration issues.Īs VMware VDI administrators, you should learn the common issues that could lead to VMware Horizon displaying a black screen for your users and how to fix them. One of the main causes of the VMware Horizon black screen problem is a support issue with the physical device display. This occurs when the template that the admin configured for the virtual machine is set to use a display resolution that the end-user device cannot support. If you suspect this is the cause of the problem, you should log in to the VMware Horizon Connection Server Admin portal and go to the desktop pool settings. If the video resolution is set to a static value, make sure that the setting is something that all the client devices support, such as 1024 x 768. However, the video adapter should be set to Auto Detect in most cases, which would prevent this issue. Connecting to the same virtual machine using RDP protocol is successful. ![]() The display settings for VMware Horizon virtual desktops within the administrative consoleĪnother common cause of this VMware Horizon issue is that the DNS Name Group Policy Object has become corrupt. When attempting to connect to a Horizon View virtual machine using the PCoIP protocol, a black screen is displayed temporarily and the client disconnects. Create your Apple ID and Apple Developer account Attach your physical iOS device to your Mac Enable developer code signing certificates Enable trust of your. If this happens, you will need to replace the Group Policy Object. You should make sure that users are not accessing any of the virtual desktops when you begin troubleshooting, and then log in to vCenter Server and power on the parent virtual machine. Within that virtual machine, launch the Group Policy Editor by entering the GPEDIT.msc command at the Windows Run prompt. The next step in the process is to copy the Horizon Agent group policies from your connection server. These policies are stored in the administrative template, which should be located at c:\Program Files\VMware Horizon\Server\Extras\GroupPolicyFiles\vdm_agent.adm. You will need to copy this file to the parent virtual machine's Windows desktop. ![]()
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