807356 - Panel text appears over degraded on retina display

Status: RESOLVED DUPLICATE of bug 803383

(Add-on SDK Graveyard :: General, defect, P2)

Description

[Brian King [:kinger]]

Brian:

I've just run an add-on I'm working on on a Mac Retina Display, using Nightly which has support (bug 674373 - gfx.hidpi.enabled = 2).

The Firefox UI text and web content looks pretty sharp. However, when I open up my add-on panel, the text is blurry (after briefly flashing as clear). See:

https://dl.dropbox.com/u/5940796/acr/blurry-panel.png

Granted this is HTML in the panel, but it looks particularly degraded. Any ideas how to sharpen it?

Jeff:
Thanks for reporting this! I think it's a bug, can you report it in
bugzilla instead?

If I were to hazard a guess, I'd say that there is some CSS in the
panel module somewhere that is casing this problem. Erik will likely
need to look at it as he actually has a retina display machine.

Comment 1

[Wes Kocher (:KWierso) (Not reading bugmail; email directly if needed)]

Erik, can you take a look at this?

Comment 2

[Erik Vold [:erikvold] (please needinfo? me)]

hmm I can confirm the issue with the ReMo Companion, but when I use GReader Panel https://addons.mozilla.org/en-US/firefox/addon/greader-panel the panel is sharp..

So perhaps there is different behavior for resource: uris, or some difference in the content?

Comment 3

[Erik Vold [:erikvold] (please needinfo? me)]

well it's not uri related..

Comment 4

[Erik Vold [:erikvold] (please needinfo? me)]

cc'ing Jonathan

I'm wondering what can cause retina display to be disabled or malfunction?..

Comment 5

[[Baboo]]

Do I see two issues? Blockiness and greyscale text AA?

Comment 6

[Jonathan Kew [:jfkthame]]

This sounds like bug 803383. We think the issue may be linked to the use of a transition or animation effect when displaying the panel, but it's still under investigation. If you're able to come up with a simple testcase that exhibits the problem, and add it to that bug, it could be really helpful.