![]() The next step in the process is to copy the Horizon Agent group policies from your connection server. Within that virtual machine, launch the Group Policy Editor by entering the GPEDIT.msc command at the Windows Run prompt. 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. If this happens, you will need to replace the Group Policy Object. 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. However, the video adapter should be set to Auto Detect in most cases, which would prevent this issue. 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. 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. ![]() 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. One of the main causes of the VMware Horizon black screen problem is a support issue with the physical device display. 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. Mac macOS 10.Although this problem is relatively common, it is usually easy for virtual desktop administrators to resolve. I’m still on v8 and just use the built in VNC and screen share to localhost as the VM just shows a black screen. But Catalina shouldn’t be breaking an app that was compiled with an older SDK. Update (): It’s not clear to me whether VMware is supposed to be calling a certain API to ask for permission or if macOS is supposed to (as with Automation) be noticing that it’s doing something that requires permission. Dropbox Modifies TCC.db to Give Itself Accessibility Access.Detecting Screen Recording Permission on Catalina.I created a git repo with a script to trigger the modal. I managed to trigger the permission modal for VMware Fusion 10 on Catalina using library injection.Īfter restarting VMWare Fusion 10 it seems to have done the trick. There really should be a way to do that with tccutil. But sometimes the database is so messed up that you have to boot into Recovery and delete the file manually. Sometimes tccutil reset AppleEvents does the job. ![]() If it doesn’t work, there’s likely something wrong with the TCC.db file and you should probably reset it. The prompting is supposed to happen automatically-there’s no API that apps need to call. There’s a similar problem where sometimes macOS fails to prompt for Automation access (or remember said access). The solution is to boot into Recovery (to get past System Integrity Protection) and then use SQLite to edit the TCC.db file to grant VMware the access. VMware 11 asks version 10 doesn’t, but it otherwise works fine on Catalina. MacOS doesn’t let you add Screen Recording permission in System Preferences if the app hasn’t asked for it. ![]() Some people found a way to get around this by granting permission manually. Apparently Fusion uses this feature, but neglects to ask for permission. Catalina requires apps to request permission for various tasks. ![]()
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