grayscale aa instead of cleartype in most of chrome on win7 with acceleration disabled

NEW
Unassigned

Status

()

Core
Graphics: Text
P3
normal
2 years ago
2 months ago

People

(Reporter: al_9x, Unassigned)

Tracking

({regression})

40 Branch
x86_64
Windows 7
regression
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [gfx-noted])

Attachments

(2 attachments)

(Reporter)

Description

2 years ago
Created attachment 8646169 [details]
fx40-gray-aa.png

xp has somewhat different symptoms (Bug 1099443)
(Reporter)

Comment 1

2 years ago
acceleration is blocked in a vmware vm:
______________________________________________
Adapter Description	VMware SVGA 3D
Adapter Drivers	vm3dum64 vm3dum
Adapter RAM	832
Asynchronous Pan/Zoom	none
Device ID	0x0405
Direct2D Enabled	Blocked for your graphics card because of unresolved driver issues.
DirectWrite Enabled	false (6.2.9200.17292)
Driver Date	7-29-2014
Driver Version	8.14.1.51
GPU #2 Active	false
GPU Accelerated Windows	0/1 Basic (OMTC) Blocked for your graphics card because of unresolved driver issues.
Subsys ID	040515ad
Supports Hardware H264 Decoding	false
Vendor ID	0x15ad
WebGL Renderer	Blocked for your graphics card because of unresolved driver issues.
windowLayerManagerRemote	true
AzureCanvasBackend	skia
AzureContentBackend	cairo
AzureFallbackCanvasBackend	cairo
AzureSkiaAccelerated	0
_______________________________________________________

so no cleartype.

Cleartype does not require 3d hardware, what excuse is there for a browser whose main function is still rendering text, to not use optimal subpixel aa?
(Reporter)

Updated

2 years ago
Keywords: regression
Keywords: regressionwindow-wanted
(Reporter)

Comment 2

2 years ago
Created attachment 8647246 [details]
with accelaration

actually, acceleration does not enable cleartype everywhere

it fixes:

1. tab bar
2. bookmark bar
3. entered urlbar and search box text
4. status bar
5. urlbar identity button

grayscale aa remains in:

1. main menu bar
2. urlbar and search box placeholder text
(Reporter)

Comment 3

2 years ago
the combined grayscale aa list (without acceleration):


1. tab bar
2. bookmark bar
3. entered urlbar and search box text
4. status bar
5. urlbar identity button
6. main menu bar
7. urlbar and search box placeholder text

Comment 4

2 years ago
At least tab and bookmarks toolbar regression is
https://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=bb8fc1380b00&tochange=46d9ffb97fe3

Regressed by Bug 899785
Blocks: 899785
Status: UNCONFIRMED → NEW
Ever confirmed: true

Updated

2 years ago
Whiteboard: [gfx-noted]
Keywords: regressionwindow-wanted
Does this bug still reproduce?
Flags: needinfo?(alice0775)

Comment 6

a year ago
(In reply to Anthony Hughes (:ashughes) [GFX][QA][Mentor] from comment #5)
> Does this bug still reproduce?

I do not have Windows7.
At least, it fixed by Bug 1007702 on Win10
Flags: needinfo?(alice0775)
Duplicate of this bug: 1237320
Priority: -- → P3
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