Closed
Bug 723524
Opened 12 years ago
Closed 12 years ago
If css opacity is toggled, the element fades to black instead of transparent.
Categories
(Firefox :: Untriaged, defect)
Tracking
()
RESOLVED
DUPLICATE
of bug 723484
People
(Reporter: lb, Unassigned)
Details
(Keywords: css2)
User Agent: Mozilla/5.0 (Windows NT 5.1; rv:10.0) Gecko/20100101 Firefox/10.0 Build ID: 20120129021758 Steps to reproduce: I set up a page with an image element in it. Through css I specified that the image should fade to opacity 0.2 on hover: img:hover {opacity: 0.2;} Actual results: When hovering the mouse over the image, the image fades to black, and switches to 0.2 Tranparency after a short moment. Expected results: The image shoul've faded to transparent instead.
Other reports about this issue: http://forums.mozillazine.org/viewtopic.php?f=9&t=2417951 See testcases here: http://jonraasch.com/blog/a-simple-jquery-slideshow http://slayeroffice.com/code/imageCrossFade/xfade2.html http://clagnut.com/sandbox/imagefades/
Comment 2•12 years ago
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The testcase works fine for me with Seamonkey trunk and FF10.0 on win7/32. Please test again in the Firefox safemode http://support.mozilla.com/en-US/kb/Safe+Mode
It sounds like an issue with the HWA in Firefox. Try with the HWA disabled (Options > Advanced > General) in FF10 and make another try.
I came a bit closer to a solution. First, here are screenshots of what happens: http://imgur.com/a/rMw1k/embed The problem appears not to be related to hwa, since turning it of the issue remained unchanged. After starting FF in -safe-mode, I couldn't reproduce the problem, it all worked as desired. Strange enough, it still works after closing FF -safe-mode and restarting it again in standard mode. Could this be related to the adblock plus plugin probably?
(In reply to lb from comment #4) > The problem appears not to be related to hwa, since turning it of the issue > remained unchanged. When you disable HWA in Firefox options, you need to restart Firefox to apply the change. > After starting FF in -safe-mode, I couldn't reproduce the problem, it all > worked as desired. Starting Firefox in safe mode disables HWA. I'm pretty sure if you restart Firefox in normal mode with HWA disabled, opacity will work as expected. Make a try.
Comment 6•12 years ago
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This looks like a dupe of bug 723484. Could you please copy+paste the graphic section from about:support ?
Comment 7•12 years ago
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duping to bug 723484. Please post the graphic card and driver version from about:support to bug 723484
Status: UNCONFIRMED → RESOLVED
Closed: 12 years ago
Resolution: --- → DUPLICATE
Issue appears to be gone after restarting FF once without hwa, either in -safe-mode or manually toggled off. graphics card: ATI Radeon HD 5700 Series Vendor-ID: 1002 device id: 68b8 device RAM: Unknown device driver: ati2dvag driver version: 8.771.0.0 driver date: 8-25-2010
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Description
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