User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.2a1pre) Gecko/20110326 Firefox/4.2a1pre Build Identifier: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.2a1pre) Gecko/20110326 Firefox/4.2a1pre With hardware acceleration enabled, elements with "border-bottom: 1px dotted;" and "border-top: 1px dotted;" take much longer to render. Performance is restored when hardware acceleration is disabled. Reproducible: Always Steps to Reproduce: 1. Load test cases. 2. Switch to another tab and switch back. 3. Switch to another application and switch back. Actual Results: Firefox will take unreasonably longer to render the "border-bottom" and "border-top" testcases, upon loading, upon tab switching and upon application switching. Firefox performs normally with the "border", "border-left" and "border-bottom" testcases. Tested on Firefox 4.0 and Minefield built on 26-Mar-2011. Expected Results: Firefox performing normally with all dotted border testcases.
Created attachment 522112 [details] Zipped testcases for dotted borders
Attachment #522111 - Attachment is obsolete: true
Component: General → Graphics
Product: Firefox → Core
QA Contact: general → thebes
Version: unspecified → Trunk
Status: UNCONFIRMED → NEW
Ever confirmed: true
I'm not able to reproduce this on Nightly on Windows 7 (with hardware acceleration enabled). Please reopen if you're still seeing this.
Status: NEW → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → WORKSFORME
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