Bug 1556302 Comment 0 Edit History

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Original comment by
on
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Revision 1 by
on 
User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:67.0) Gecko/20100101 Firefox/67.0

Steps to reproduce:

I rotated my laptop upside down (it is lenovo flex), so that the subpixels order changed from RGB to BGR. I changed ClearType settings in Windows to "reverse subpixels order", restarted Windows. Now in Windows interface the fonts are rendered properly.



Actual results:

But in Firefox fonts on webpages and Firefox menu items are blurry because Firefox still continue rendering fonts in the regular subpixels mode.

Here are the relevant settings from about:support:

AzureCanvasBackend	skia
AzureCanvasBackend (UI Process)	skia
AzureContentBackend	skia
AzureContentBackend (UI Process)	skia
AzureFallbackCanvasBackend (UI Process)	cairo
GPUProcessPid	14228
ClearType Parameters	Gamma: 2.2 Pixel Structure: BGR ClearType Level: 100 Enhanced Contrast: 50 


Expected results:

I expect Firefox should recognize both screen rotations and ClearType settings change, and render properly even without restarting Windows or Firefox.

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