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Issue metadata

Status: Available
Owner: ----
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug-Regression



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UI and content font rendering uses non-antialiased rendering mode on Windows

Reported by markus.o...@gmail.com, Nov 20 2017

Issue description

UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.94 Safari/537.36

Steps to reproduce the problem:
1. Open Webpage www.google.com
2. Look at font
3. Font is fuzzy

What is the expected behavior?
Font is crisp

What went wrong?
font is fuzzy

Did this work before? Yes previous version

Chrome version: 62.0.3202.94  Channel: stable
OS Version: 10.0
Flash Version: 

I have tried turning off hardware acceleration
I have tried adjusted clear type font on windows 10
I do not have GPU in this machine.
 
Components: -UI Blink>Fonts
Labels: Needs-Triage-M62
Labels: Needs-Feedback
Can you attach a screenshot? I assume there is no unusual configuration going on (e.g. remote desktop, etc.)
I have added a couple of screen shots.

That is correct this is not through remote desktop. This is straight up Windows 10. 

Asus Mother Board
Intel Core i7-6700 @ 3.4GHz
16 GB RAM
PCIe SAMSUNG SSD 960 PRO 512GB

2x AMD Radeon HD 5450 Display Adapters
Dell UltraSharp 24" U2410 HDMI



Chrome and Edge Side by Side.PNG
130 KB View Download
chrome screen shot with Clear Text.png
47.5 KB View Download
Project Member

Comment 4 by sheriffbot@chromium.org, Nov 21 2017

Cc: cbiesin...@chromium.org
Labels: -Needs-Feedback
Thank you for providing more feedback. Adding requester "cbiesinger@chromium.org" to the cc list and removing "Needs-Feedback" label.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
Cc: drott@chromium.org e...@chromium.org
Status: Available (was: Unconfirmed)
Thanks! Confirming for now and handing it over to eae/drott...

Comment 6 by drott@chromium.org, Nov 22 2017

Cc: bunge...@chromium.org
Summary: UI and content font rendering uses non-antialiased rendering mode on Windows, when no GPU present (was: Font Fuzzy)
Any ideas, Ben? This looks like all of Chrome, including the Tab title, is going into bi-level, non-antialiased rendering mode? 

Comment 7 by drott@chromium.org, Nov 22 2017

Summary: UI and content font rendering uses non-antialiased rendering mode on Windows (was: UI and content font rendering uses non-antialiased rendering mode on Windows, when no GPU present)
Markus, thanks for the report. What do you mean by 
"I do not have GPU in this machine."

but then you mention:
"2x AMD Radeon HD 5450 Display Adapters"

which looks to me like even 2 GPUs?


Pretty sure the antialiasing setting is determined on Windows at ui/gfx/font_render_params_win.cc#CachedFontRenderParams::GetParams() . It seems to use SPI_GETFONTSMOOTHING . Not sure if that's the right thing to use or not. Also note that renderer processes use whatever they were given at creation (I think) so between changing settings it may be necessary to ensure a new renderer is used.

Comment 9 by drott@chromium.org, Nov 22 2017

Cc: derat@chromium.org msw@chromium.org

Comment 10 by derat@chromium.org, Nov 22 2017

Cc: -derat@chromium.org
(Sorry, I don't know anything about font rendering settings on Windows.)
Thanks everyone for taking a look and Happy Thanksgiving.

Yes the AMD HD Radeon is a GPU. Specifically an ATI Cedar released in 2011. This particular model has 512MB of Memory per board. Each board drives a single 24" display at 1920 x 1200. The display drivers are up to date running 15.200.1062.1004 released 8/3/2015. 

Running a benchmark test for FPS Under Direct X this card can push 3-4 fps under DirectX 10 and 2-3 fps DirectX 11. (http://www.userbenchmark.com/UserRun/6002105)
Since this is a work machine intended for general document (Word/Excel/Powerpoint) manipulation, a GPU for greater FPS is not needed.

It is not clear if there is an action item in my court. Please advise.

Comment 12 by drott@chromium.org, Nov 28 2017

Markus, on which OS is this exactly?

Comment 13 by drott@chromium.org, Nov 28 2017

Cc: pastarmovj@chromium.org yini...@chromium.org kkaluri@chromium.org vamshi.k...@techmahindra.com
 Issue 784294  has been merged into this issue.
Microsoft Windows [Version 10.0.16299.64]

Windows 10 Pro
Version 1709 - 2017 Fall Creators Update


Comment 15 by ebra...@gnu.org, Feb 10 2018

Cc: ebra...@gnu.org

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