Closed Bug 887696 Opened 6 years ago Closed 6 years ago

Scaling based on DPI (added in FF22) even after tweaking makes some pages rendered differently

Categories

(Core :: Layout, defect)

22 Branch
x86_64
Windows 7
defect
Not set

Tracking

()

RESOLVED INCOMPLETE

People

(Reporter: marcin, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0 (Beta/Release)
Build ID: 20130618035212

Steps to reproduce:

I have upgraded FF21 to FF22


Actual results:

Pages and interface seems to be scaled differently, even after setting layout.css.devPixelsPerPx to 1.0 and using Theme Font and Size changer FF/FF rendering seems to look a little different


Expected results:

There should be option in "standard" FF options to select rendering type - old or new
Please fix this. Many users have problems since this update began. UI and fonts are huge and different than previous versions. There isn't a right set value now.
> Pages and interface seems to be scaled differently, even after setting layout.css.devPixelsPerPx to 1.0

How differ? Please attach a screenshot.
And post link to sites
Component: Untriaged → Layout
Flags: needinfo?(marcin)
Product: Firefox → Core
Screenshot examples available here: https://support.mozilla.org/en-US/questions/959696

See 6/27/13 12:57 AM posting.
(In reply to Mark from comment #4)
> Screenshot examples available here:
> https://support.mozilla.org/en-US/questions/959696
> 
> See 6/27/13 12:57 AM posting.

I'm afraid it is not very helpful. The reporter is not saying that he set layout.css.devPixelsPerPx to 1.0. Also, Internet Explorer's default zoom level is NOT 100% if the DPI setting is 120%.
I have my Windows 7 at 115% DPI, so I'm one of those affected by the scaling update on version 22 (I tried to turn off this new scaling feature by setting layout.css.devPixelsPerPx to 1.0, but then I faced an utterly reduced UI - which is a subject discussed here: https://bugzilla.mozilla.org/show_bug.cgi?id=889550).

Regarding the altered rendering in FF 22, for me the problem resides in the fact that all the images get upscaled as well, thus ending up all blurred. My suggestion: leave the images out of the scaling, or at least give the option to allow this. I see no point in having such rendered images.

By (obvious) comparison, increasing the DPIs in Windows will increase everything system-related (menus, icons, explorer text, icons text, etc.), but one always sees the .jpeg, .png and every other image format in its own native resolution.
It will deadly break the page layout on High DPI monitors. Image blurring is less worse than unreadable contents and less observable on those monitors.
I think this is pretty serious.

As a developer, I'm really not interested in now having to also test designs in several completely different "default" zooms in Firefox.

IE is finally getting their **** together, and now THIS with FF?
This is bound to scare users off.

Stuff like this just has to work, out of the box.
Without sending the user into the engine-room with a screwdriver.
And it DID, until now.
Marcin?
Whiteboard: closeme INCO 2013-09-15
Resolved per whiteboard
Status: UNCONFIRMED → RESOLVED
Closed: 6 years ago
Flags: needinfo?(marcin)
Resolution: --- → INCOMPLETE
Whiteboard: closeme INCO 2013-09-15
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