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  <channel>
    <title>topic Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens in Horizon Desktops and Apps</title>
    <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836589#M93437</link>
    <description>&lt;P&gt;Hi Fabio,&lt;/P&gt;&lt;P&gt;I´ve disabled one Connection Server and after a few minutes we get&amp;nbsp;&lt;SPAN&gt;"HTTP 500 - Internal Server Error". After re-enabeling the server everything works fine again.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;When I disable the other connection server, we didn´t get the error message. I have disabled one connection server know, and monitor if we´re still facing black screen problems....&lt;/SPAN&gt;&lt;/P&gt;</description>
    <pubDate>Thu, 18 Mar 2021 10:05:04 GMT</pubDate>
    <dc:creator>MatthiasPohl</dc:creator>
    <dc:date>2021-03-18T10:05:04Z</dc:date>
    <item>
      <title>Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2835885#M93417</link>
      <description>&lt;P&gt;We have a clustered Horizon 7.13.0 environment, with several manual desktop pool. All machines are running Windows 10 with agent&amp;nbsp;&lt;SPAN&gt;7.13.0-16975066 installed.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;Our clients connect via Devoltions RDP Manager to the machines. They are reporting irregular black screens. In some cases the problem is solved by rebooting the machine, in some cases a client reboot solves the problem.&amp;nbsp;&lt;/P&gt;&lt;P&gt;Any hints or&amp;nbsp;recommendations?&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Mon, 15 Mar 2021 07:55:31 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2835885#M93417</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-15T07:55:31Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836416#M93429</link>
      <description>&lt;P&gt;Ciao&amp;nbsp;&lt;/P&gt;&lt;P&gt;Usually, this problem is generated from a network problem (TCP/UDP PORTS not open etc..), do you have multiple Horizon Connection Server? Use the Unified Access Gateway? Do you have checked the Horizon Agent Log?&lt;/P&gt;&lt;P&gt;For the log check this:&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;A href="https://docs.vmware.com/en/VMware-Horizon-7/7.13/horizon-client-agent-security/GUID-2845973D-BE67-474F-8298-4629F214322C.html" target="_blank"&gt;https://docs.vmware.com/en/VMware-Horizon-7/7.13/horizon-client-agent-security/GUID-2845973D-BE67-474F-8298-4629F214322C.html&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 17 Mar 2021 10:02:50 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836416#M93429</guid>
      <dc:creator>fabio1975</dc:creator>
      <dc:date>2021-03-17T10:02:50Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836447#M93430</link>
      <description>&lt;P&gt;Hi Fabio,&lt;/P&gt;&lt;P&gt;we have two Connection Servers, and no UAG. We use a simple linux load balancer.&lt;/P&gt;&lt;P&gt;I´ve downloaded the debug*.txt, but found no problem, so far.&amp;nbsp;&lt;/P&gt;&lt;P&gt;Kind regards,&lt;/P&gt;&lt;P&gt;Matthias&lt;/P&gt;</description>
      <pubDate>Wed, 17 Mar 2021 12:19:29 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836447#M93430</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-17T12:19:29Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836449#M93431</link>
      <description>&lt;P&gt;Ciao&amp;nbsp;&lt;/P&gt;&lt;P&gt;A test, if it is possible for you, could be to stop one of the two connection servers and check if the problem exists (perform the stop on both connection servers in turn) so we understand if it is a problem with one of the two connection servers. Otherwise, simply connect not using the FQDN attested on the load balancer but using the name of the single connection server (also in this case trying on both)&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Wed, 17 Mar 2021 12:37:36 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836449#M93431</guid>
      <dc:creator>fabio1975</dc:creator>
      <dc:date>2021-03-17T12:37:36Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836589#M93437</link>
      <description>&lt;P&gt;Hi Fabio,&lt;/P&gt;&lt;P&gt;I´ve disabled one Connection Server and after a few minutes we get&amp;nbsp;&lt;SPAN&gt;"HTTP 500 - Internal Server Error". After re-enabeling the server everything works fine again.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN&gt;When I disable the other connection server, we didn´t get the error message. I have disabled one connection server know, and monitor if we´re still facing black screen problems....&lt;/SPAN&gt;&lt;/P&gt;</description>
      <pubDate>Thu, 18 Mar 2021 10:05:04 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836589#M93437</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-18T10:05:04Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836627#M93439</link>
      <description>&lt;P&gt;Update: If we have one connection server disabled (it doesn´t matter wich) some colleagues get the error message "HTTP-Fehler 500" but not all colleagues.&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 18 Mar 2021 11:25:00 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836627#M93439</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-18T11:25:00Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836639#M93440</link>
      <description>&lt;P&gt;Hi&lt;BR /&gt;is the load balancer, that you have in front of the connection servers, intelligent? realizes that one of the connection servers is down and does not send connections to it?&lt;/P&gt;&lt;P&gt;Bye&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 18 Mar 2021 12:14:10 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836639#M93440</guid>
      <dc:creator>fabio1975</dc:creator>
      <dc:date>2021-03-18T12:14:10Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836645#M93441</link>
      <description>&lt;P&gt;No, it is just a "stupid" debian system with a nginx load balancer&lt;/P&gt;</description>
      <pubDate>Thu, 18 Mar 2021 12:35:06 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836645#M93441</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-18T12:35:06Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836648#M93442</link>
      <description>&lt;P&gt;How do you have it setup, if I had to guess users are not getting back to the correct server, you need some sort of session stickyness setup like mentioned here&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&lt;A href="https://warlord0blog.wordpress.com/2018/11/21/vmware-horizon-load-balancing/" target="_blank"&gt;https://warlord0blog.wordpress.com/2018/11/21/vmware-horizon-load-balancing/&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 18 Mar 2021 12:42:46 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2836648#M93442</guid>
      <dc:creator>sjesse</dc:creator>
      <dc:date>2021-03-18T12:42:46Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2837258#M93469</link>
      <description>&lt;P&gt;We plan to test some VMs connecting directly to one connection server. If this works fine, the loadbalancer is the problem. Then we´ll investigate on the load balancer.&lt;/P&gt;</description>
      <pubDate>Mon, 22 Mar 2021 10:12:36 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2837258#M93469</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-03-22T10:12:36Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2841689#M93681</link>
      <description>&lt;P&gt;Okay, we don´t have a problem with our load balancer. The VMs with a direct connection via one connection server, behave the same way.&lt;/P&gt;&lt;P&gt;We always get a black screen, when we log off from windows (VM side) and try to open a new session. Then we close the session (close the horizon window), reconnect and everything works fine.&amp;nbsp;&lt;/P&gt;&lt;P&gt;So: no blackscreen when we only close the session, always blackscreen when we log off from windows. So perhaps we have to configure something inside the VM on windows side?&lt;/P&gt;</description>
      <pubDate>Wed, 14 Apr 2021 08:18:15 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2841689#M93681</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-04-14T08:18:15Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2841800#M93690</link>
      <description>&lt;P&gt;Hi Matthias,&lt;/P&gt;&lt;P&gt;Which VM Tools version do you have installed? VM Tools version 11.1.5 and higher installs an SVGA driver that is newer than the version that comes with the Horizon agent. We saw similar problems with multi-monitor setups.&lt;/P&gt;&lt;P&gt;Horizon agent 7.13 should have SVGA driver 8.16.7.8 5/14/2020 installed.&lt;/P&gt;&lt;P&gt;Take a look at this KB:&lt;/P&gt;&lt;P&gt;&lt;A href="https://kb.vmware.com/s/article/2078739" target="_blank"&gt;https://kb.vmware.com/s/article/2078739&lt;/A&gt;&lt;/P&gt;</description>
      <pubDate>Thu, 15 Apr 2021 06:27:10 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2841800#M93690</guid>
      <dc:creator>Hmunning</dc:creator>
      <dc:date>2021-04-15T06:27:10Z</dc:date>
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    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2842130#M93714</link>
      <description>&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;we have VMware Tools 11.2.5.17337674 and SVGA driver 8.16.7.8 5/14/2020 installed&lt;/P&gt;&lt;P&gt;I followed the steps mentioned in the KB, but still the same problem.&lt;/P&gt;&lt;P&gt;Everytime the user logs off from windows, and tries to open a new session, we get a black screen. If we then close (just closing the horizon window) the session and reconnect, everything works fine...&lt;/P&gt;</description>
      <pubDate>Fri, 16 Apr 2021 06:54:20 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2842130#M93714</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-04-16T06:54:20Z</dc:date>
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    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2845257#M93872</link>
      <description>&lt;P&gt;I am dealing with the same issue across several of my clients.&lt;BR /&gt;View agent version 7.12 and 7.13.&lt;BR /&gt;We can't seem to find anything logical that makes sense, the machines freeze at random when a user logs off and tries to log back in the next morning. Black or blank screen and frozen VDI.&amp;nbsp;&lt;BR /&gt;I'm going to start digging through SVGA driver versions to see if that makes any sense, but if we have the user disconnect rather than log off, everything is fine.&lt;BR /&gt;It only occurs at log off / log on&lt;/P&gt;</description>
      <pubDate>Mon, 03 May 2021 19:55:28 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2845257#M93872</guid>
      <dc:creator>Ahelio</dc:creator>
      <dc:date>2021-05-03T19:55:28Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2848045#M94008</link>
      <description>&lt;P&gt;Hello all,&lt;/P&gt;&lt;P&gt;We have exactly the same problem in our Horizon environment. The employees describe the procedure as the same as yours. After logging off or even shutting down the VM, they get a black screen the next day.&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;After upgrading to Horizon 8.2, the problems with random black screens started. The upgrade also included updating VMware Tools from 11.0.5 -&amp;gt; 11.2.5.&lt;/P&gt;&lt;P&gt;&lt;STRONG&gt;Have you already found a solution?&lt;/STRONG&gt;&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;I have opened a case with VMware and hope to find a solution.&lt;/P&gt;</description>
      <pubDate>Thu, 20 May 2021 05:00:26 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2848045#M94008</guid>
      <dc:creator>Yorick1</dc:creator>
      <dc:date>2021-05-20T05:00:26Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2848792#M94040</link>
      <description>&lt;P&gt;Hi Yorick1,&lt;/P&gt;&lt;P&gt;no, we haven´t found a solution so far. But we opened a VMware SR. Could you please send me the SR-Number of your case? Perhaps it would be helpful, if the Support Engineer is aware of the other SR.&lt;/P&gt;&lt;P&gt;Kind regards,&lt;/P&gt;&lt;P&gt;Matthias&lt;/P&gt;</description>
      <pubDate>Tue, 25 May 2021 07:30:55 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2848792#M94040</guid>
      <dc:creator>MatthiasPohl</dc:creator>
      <dc:date>2021-05-25T07:30:55Z</dc:date>
    </item>
    <item>
      <title>Re: Horizon Clients (2012, 8.2.10, Windows10)  reporting irregular black screens</title>
      <link>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2849212#M94050</link>
      <description>&lt;P&gt;Hi Matthias,&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;the problem has disappeared for about a week, although we have not made any changes. I will leave the VMware case open until Monday.&lt;BR /&gt;I gladly send you the case number SR 21221332605.&lt;BR /&gt;Maybe it will help you.&lt;/P&gt;&lt;P&gt;&lt;BR /&gt;Cheers,&lt;BR /&gt;Chris&lt;/P&gt;</description>
      <pubDate>Wed, 26 May 2021 14:24:01 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/Horizon-Desktops-and-Apps/Horizon-Clients-2012-8-2-10-Windows10-reporting-irregular-black/m-p/2849212#M94050</guid>
      <dc:creator>Yorick1</dc:creator>
      <dc:date>2021-05-26T14:24:01Z</dc:date>
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