Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

This thread was archived. Please ask a new question if you need help.

Thin black horizontal lines when watching youtube

  • 3 replies
  • 1 has this problem
  • 102 views
  • Last reply by locutus1

locutus1
locutus1
more options

The issue is present only when I watch youtube videos on zoom level other than 100% (page zoom) and the youtube OSD is visible. Chrome had similar problem in the past: https://www.reddit.com/r/youtube/comments/3hh9le/horizontal_thin_black_lines_when_going_fullscreen/

The issue is present only when I watch youtube videos on zoom level other than 100% (page zoom) and the youtube OSD is visible. Chrome had similar problem in the past: https://www.reddit.com/r/youtube/comments/3hh9le/horizontal_thin_black_lines_when_going_fullscreen/

Chosen solution

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

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

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.

Read this answer in context 👍 0

All Replies (3)

locutus1
locutus1 Question owner
more options

picture

cor-el
cor-el
  • Top 25 Contributor
  • Moderator
more options

Chosen Solution

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"

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

You can check if there is an update for your graphics display driver and check for hardware acceleration related issues.

locutus1
locutus1 Question owner
more options

Disable hardware acceleration solved the problem