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Blurry text with hardware acceleration enabled.

Posted

Hi, Firefox folks.

My text (and edges of tabs) were blurry in Firefox 4.0.1 (32-bit), running on Windows 7 64-bit, with a Radeon HD 6670 with latest drivers: Catalyst 11.5, May 9, 2011. (I have no text problems at all with the latest Chrome or Internet Explorer 9.)

The problem immediately disappeared when I went to Firefox's Tools menu --> Options --> Advanced tab --> General subtab, and unchecked "Use hardware acceleration when available."

[I've edited out a "tip" of mine that I thought was working, but actually wasn't.]

I don't know how this will affect Firefox's speed, but at least I can properly read the text now.

I didn't have to disable Firefox 4.0.1 hardware acceleration with my old NVIDIA GeForce 9800 GT (which I was using on the same PC a few days ago), so this might be (at least partly) an AMD/ATI problem; I've notified them about this already.

So, either AMD/ATI needs to issue a patch, or Mozilla does, or both. Just thought you should know. Thanks for your time.

--Chaz Geary, St. Louis County, MO USA

Hi, Firefox folks. My text (and edges of tabs) were blurry in Firefox 4.0.1 (32-bit), running on Windows 7 64-bit, with a Radeon HD 6670 with latest drivers: Catalyst 11.5, May 9, 2011. (I have no text problems at all with the latest Chrome or Internet Explorer 9.) The problem immediately disappeared when I went to Firefox's Tools menu --> Options --> Advanced tab --> General subtab, and unchecked "Use hardware acceleration when available." [I've edited out a "tip" of mine that I thought was working, but actually wasn't.] I don't know how this will affect Firefox's speed, but at least I can properly read the text now. I didn't have to disable Firefox 4.0.1 hardware acceleration with my old NVIDIA GeForce 9800 GT (which I was using on the same PC a few days ago), so this might be (at least partly) an AMD/ATI problem; I've notified them about this already. So, either AMD/ATI needs to issue a patch, or Mozilla does, or both. Just thought you should know. Thanks for your time. --Chaz Geary, St. Louis County, MO USA

Modified by chazgeary03@yahoo.com

Additional System Details

This happened

Every time Firefox opened

This started when...

I switched from a GeForce 9800 GT to an AMD/ATI Radeon HD 6670.

Installed Plug-ins

  • IE Tab Plug-in for Mozilla/Firefox
  • Office Plugin for Netscape Navigator
  • PopCap Games Plugin
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • 6.0.12.448
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Foxit Reader Plug-In For Firefox and Netscape
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Google Update
  • Shockwave Flash 10.3 r181
  • Adobe Shockwave for Director Netscape plug-in, version 11.5
  • DivX Web Player version 2.1.0.900
  • DivX OVS Helper Plug-in
  • Next Generation Java Plug-in 1.6.0_24 for Mozilla browsers
  • 4.0.60310.0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0.1) Gecko/20100101 Firefox/4.0.1

More Information

See above, please.

cor-el
  • Top 10 Contributor
  • Moderator
13086 solutions 119782 answers

Helpful Reply

Some have reported that it helps to Turning off Morphological filtering in the Catalyst driver.

Some have reported that it helps to Turning off Morphological filtering in the Catalyst driver.