Troubleshooting PCoIP Display Issues

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January 4, 2021

Last modified: 07/27/2023, 10:50 am

Knowledge Base Article Troubleshooting Performance Display HP Anyware Remote Workstation Card

This article provides general troubleshooting steps for performance issues when remoting virtual desktops.

Scenarios covered include:

Scenario 1:

Video slicing or tearing.

Check for network congestion and packet loss.
Check PCoIP zero client logs to see if hitting the 20Mbps bandwidth limit.
Windows media player has know slicing issues - try using alternative player for the same video (Media Player Classic, Quicktime etc).
Some videos are poorly encoded and can slice during playback, or consume more bandwidth than other videos, but at a fraction of the video performance. Try an alternate encoding for the video, try a different player.
Under-performing client. Check the client CPU if consistently highly loaded, consider a more powerful software client or use a PCoIP zero client.
Check the number of vCPU's for the desktop. If using video, multiple vCPU or cores are recommended.

Scenario 2:

Screen (or parts of the screen) becomes fuzzy and then clears up.

Scenario 3:

Slow screen updates.

Check for network congestion, lack of bandwidth and/or packet loss.
Consider reducing the PCoIP session variable GPO for Initial Image Quality from 90 (default) to 70 (for example). This will increase the video frame rate in a known congested network environment.

For information on setting up GPO variables please see:

Scenario 4:

Slow desktop launch, screen flickers a couple of times:

The Client and VM are attempting to negotiate a new resolution or display topology.