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Video brightness changes when moving browser window to other display

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by Donlod

Donlod
Donlod
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When moving the browsers window in which a video is playing to the second display, the videos brightness or gamma changes. This results in a too bright video on my second display. When moving it back to the first display it changes back (to normal). If the video is paused it does not change brightness. But as soon as you resume it the brightness changes. Only the brightness of the video changes not of the whole site. This happens only if using a HTML5 video player. When using flash it does not happen. This happens only in firefox, other browser do not behave like this. I noticed this first after the firefox update to 55.0.3 which was today. Im using win10 pro as OS.

When moving the browsers window in which a video is playing to the second display, the videos brightness or gamma changes. This results in a too bright video on my second display. When moving it back to the first display it changes back (to normal). If the video is paused it does not change brightness. But as soon as you resume it the brightness changes. Only the brightness of the video changes not of the whole site. This happens only if using a HTML5 video player. When using flash it does not happen. This happens only in firefox, other browser do not behave like this. I noticed this first after the firefox update to 55.0.3 which was today. Im using win10 pro as OS.

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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You can try to disable hardware acceleration in Firefox.

  • Options/Preferences -> General: Performance
    remove checkmark: [ ] "Use recommended performance settings"
    "Use hardware acceleration when available"

You need to close and restart Firefox after toggling this setting.

Donlod
Donlod Question owner
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cor-el said

You can try to disable hardware acceleration in Firefox.
  • Options/Preferences -> General: Performance
    remove checkmark: [ ] "Use recommended performance settings"
    "Use hardware acceleration when available"
You need to close and restart Firefox after toggling this setting.

This fixed it. Ill try updating graphics drivers as mentioned in the links you posted and report if it helped.

Modified by Donlod