This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

Firefox unresponsive across USB to VGA or USB to DVI adapters?

  • 2 biyano
  • 14 eza na bankokoso oyo
  • 3 views
  • Eyano yasuka ya vmikayel

536548
536548
more options

Firefox (and Thunderbird) are both completely unusable when you move their windows to the external display using either USB to VGA or USB to DVI adapters. The problem occurs using two different USB to VGA/DVI brands, and Mozilla software is the only software the problem occurs with. It's not always crashing, but instead like it can't render itself. You can't resize, maximize, or minimize the windows without them becoming responsive. All other applications work fine. Is there a bug? Are there rendering settings in about:config I can adjust? This is a major issue and I'll probably be forced to use IE or Chrome on these machines if this isn't fixable. I found one other post regarding this from Firefox version 4.0.2, but no solutions or responses to that. Any suggestions or solutions?

Firefox (and Thunderbird) are both completely unusable when you move their windows to the external display using either USB to VGA or USB to DVI adapters. The problem occurs using two different USB to VGA/DVI brands, and Mozilla software is the only software the problem occurs with. It's not always crashing, but instead like it can't render itself. You can't resize, maximize, or minimize the windows without them becoming responsive. All other applications work fine. Is there a bug? Are there rendering settings in about:config I can adjust? This is a major issue and I'll probably be forced to use IE or Chrome on these machines if this isn't fixable. I found one other post regarding this from Firefox version 4.0.2, but no solutions or responses to that. Any suggestions or solutions?

All Replies (2)

EnricoBassetti
EnricoBassetti
more options

A possibile workaround is setting layers.acceleration.disabled to true.

vmikayel
vmikayel
more options

Workaround with layers.acceleration.disabled did not do it for me. What fixed it is simply disabling acceleration via menu "Tools->Options->Advanced->General->Use Hardware Acceleration when available". FF version is 12.0