981392 - Fonts garbled on Windows 8.1

Status: UNCONFIRMED

(Core :: Graphics: Text, defect)

Description

[Michael Van Canneyt]

Attachment: Sample page, google maps.

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:27.0) Gecko/20100101 Firefox/27.0 (Beta/Release)
Build ID: 20140212131424

Steps to reproduce:

Load bugzilla page, many other webpages. 


Actual results:

Fonts are displayed wrong. Does not happen with all fonts, looks like some anti-aliasing issue.




Expected results:

Proper display of fonts, like in other browsers. I tested on the same PC with Google chrome, IE: they display the same pages just fine.

Comment 1

[Michael Van Canneyt]

Attachment: Another sample page, bugzilla page. Notice the bold letters.

Comment 3

[Timothy Nikkel (:tnikkel)]

reopen based on bug 812695 comment 445.

Comment 4

[Alice0775 White]

1. Could you paste the graphics section of about:support?
2. Could you test with safemode? http://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-using-safe-mode
3. Could you test with new profile? http://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

Comment 5

[Michael Van Canneyt]

Adapter Description	Intel(R) HD Graphics
Adapter Drivers	igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32
Adapter RAM	Unknown
Device ID	0x0106
DirectWrite Enabled	false (6.3.9600.16384)
About:support
Driver Date	1-29-2014
Driver Version	9.17.10.3347
GPU #2 Active	false
GPU Accelerated Windows	0/1 Basic
Vendor ID	0x8086
WebGL Renderer	Google Inc. -- ANGLE (Intel(R) HD Graphics Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote	false
AzureCanvasBackend	skia
AzureContentBackend	cairo
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0

Comment 6

[Michael Van Canneyt]

Tested with safe mode: problem persists.

Comment 7

[Michael Van Canneyt]

Tested using another (newly created) profile: Problem persists

Comment 8

[Jonathan Kew [:jfkthame]]

Looks like the fonts are being rendered with no antialiasing (smoothing) at all.

In Control Panel > Appearance and Personalization > Fonts > Adjust ClearType text, is the option "Turn on ClearType" enabled or disabled?

In Control Panel > System and Security > System Properties > Advanced > Performance Settings > Visual Effects, is the option "Smooth edges of screen fonts" enabled or disabled?

Comment 9

[Xavier Delgado]

I had the same problem with Windows 8.1 with a graphic card GeForce GT 630. But I never find a way to reproduce it. It happens sometimes, with no change of configuration of Fx. Tricky for a dev to fix it.