Problem with MP4 video rendering and acceleration
The Virtual Desktop provider Frame responded to a help request about Opera not displaying the browser desktop. The response is quoted below:
"Frame is also an MP4 video stream, and the issue looks identical to what others are describing. None of the fixes that they show seem to work, however I noticed one user who said that it did work after swapping video cards to an older model. With that, I then found that if I disable hardware acceleration in Opera settings (which disables GPU rendering) that the issue does not occur. Doing the same, although not an ideal fix, will resolve the issue until Opera fixes the way that they handle rendering. To disable the setting do the following:"
1.Open Opera and press Alt + P
2. In the Settings window, scroll down and un-check the checkbox labeled Use hardware acceleration when available.
You do not have to press any OK buttons to save the settings. The settings are saved automatically. But the settings take effect only upon restarting of the Opera browser.