664966 - Incorrect font rendering with 2 sec delay greyscale if HWA on. Incorrect font rendering with 2 sec delay greenish color if HWA off.

Status: RESOLVED WORKSFORME

(Core :: Graphics, defect)

Description

[Alice0775 White]

Attachment: testcase

Build Identifier:
http://hg.mozilla.org/mozilla-central/rev/cab0115bbc48
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0a1) Gecko/20110616 Firefox/7.0a1 ID:20110616030822

Though Bug 647560 was marked as RESOLVED FIXED,
I can still see the font rendering issue on latest Nightly nightly build ID:20110616030822.

*Incorrect font rendering with 2 sec delay greyscale if HWA on.
*Incorrect font rendering with 2 sec delay greenish color if HWA off.

Reproducible: Always

Steps to Reproduce(HWA on):
1. Start Nightly with new profile(default HWA on)
2. Open https://bugzilla.mozilla.org/attachment.cgi?id=523881
3. Scroll to bottom by press End key
4. Watch font rendering for 2-3 seconds

Actual Results:  
	Incorrect font rendering with 2 sec delay greyscale

Expected Results:  
  greyscale instead of subpixel.


Steps to Reproduce(HWA off):
1. Start Nightly with new profile
2. set HWA off and restart browser
3. Open https://bugzilla.mozilla.org/attachment.cgi?id=523881
4. Scroll to bottom by press End key
5. Watch font rendering for 2-3 seconds

Actual Results:  
	Incorrect font rendering with 2 sec delay greenish color

Expected Results:  
  font color should not be changed.


(default setting)
Graphics 
	Adapter Description: ATI Radeon HD 4300/4500 Series
	Vendor ID: 1002
	Device ID: 954f
	Adapter RAM: 512
	Adapter Driver: saticfx64 aticfx64 aticfx32 aticfx32 atiumd64 atidxx64 atiumdag atidxx32 atiumdva atiumd6a atitmm64
	Driver Version: 8.861.0.0
	Driver Date: 5-24-2011
	Direct2D Enabled: true
	DirectWrite Enabled: true (6.1.7601.17563)
	ClearType Parameters: Gamma: 2200 Pixel Structure: RGB ClearType Level: 50 Enhanced Contrast: 100
	WebGL Renderer: Google Inc. -- ANGLE -- OpenGL ES 2.0 (ANGLE 0.0.0.686)
	GPU Accelerated Windows: 1/1 Direct3D 10

Comment 1

[ripper5555]

Haven't seen this new bug report linked to bug 647560.
Bug 647560 is supposed to be fixed, however it still fails on Firefox/7.0 (beta6)

Anyway:

Adapter Description: NVIDIA GeForce 8800 GTS
Vendor ID: 10de
Device ID: 0193
Adapter RAM: 640
Adapter Drivers: nvd3dum nvwgf2um,nvwgf2um
Driver Version: 8.17.12.7533
Driver Date: 5-20-2011
Direct2D Enabled: true
DirectWrite Enabled: true (6.1.7601.17563)
ClearType Parameters: ClearType parameters not found
WebGL Renderer: Google Inc. -- ANGLE -- OpenGL ES 2.0 (ANGLE 0.0.0.686)
GPU Accelerated Windows: 3/3 Direct3D 10

Comment 2

[ripper5555]

Virgin installment (1st time) on my server:

Adapter Description: Intel(R) Graphics Media Accelerator 500
Vendor ID: 8086
Device ID: 8108
Adapter RAM: Unknown
Adapter Driver: sigdumd32
Driver Version: 8.14.10.2011
Driver Date: 8-27-2009
Direct2D Enabled: Blocked for your graphics driver version.
DirectWrite Enabled: false (6.1.7601.17563)
ClearType Parameters: ClearType parameters not found
WebGL Renderer: Google Inc. -- ANGLE -- OpenGL ES 2.0 (ANGLE 0.0.0.686)
GPU Accelerated Windows: 1/1 Direct3D 9

So that's 3 different vendors displaying the same symptoms.

Comment 3

[ripper5555]

And we're at Firefox v14.01 and it still fails...

Comment 4

[Gregory Pappas [:gregp]]

Are you still able to reproduce?

Comment 5

[Alice0775 White]

The problem is no longer reproduced on Firefox110 as well as Nightly112.0a1