982721 - [HiDPI] Forward button top/bottom borders display incorrectly.

Status: RESOLVED WORKSFORME

(Firefox :: Toolbars and Customization, defect)

Description

[Gary [:streetwolf52]]

Attachment: Forward navigation button borders.

User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:30.0) Gecko/20100101 Firefox/30.0 (Beta/Release)
Build ID: 20140312030201

Steps to reproduce:

Start the Nightly version of Fx.

Visit some web sites to make active the Back/Forward buttons.


Actual results:

Forward button top border seems too light, while the bottom border is almost invisible.


Expected results:

Forward button borders should be displayed better.

Comment 1

[Gary [:streetwolf52]]

Graphics
--------

Adapter Description: AMD Radeon HD 7900 Series
Adapter Drivers: aticfx64 aticfx64 aticfx64 aticfx32 aticfx32 aticfx32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a atitmm64
Adapter RAM: 3072
Device ID: 0x6798
Direct2D Enabled: true
DirectWrite Enabled: true (6.3.9600.16384)
Driver Date: 2-23-2014
Driver Version: 13.350.1005.0
GPU #2 Active: false
GPU Accelerated Windows: 1/1 Direct3D 11 (OMTC)
Vendor ID: 0x1002
WebGL Renderer: Google Inc. -- ANGLE (AMD Radeon HD 7900 Series Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: true
AzureCanvasBackend: direct2d
AzureContentBackend: direct2d
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

Comment 2

[Gary [:streetwolf52]]

I just ran Nightly Fx30 under a VM and I don't see this problem.  I'm guessing it might be a video card issue.  My VM uses a virtual generic video card.  I use an AMD HD7970.  I also tried with HWA and OMTC off but that didn't work.

Comment 3

[Gary [:streetwolf52]]

Just nailed it down.  It's a HiDPI issue.  I run at 120 DPI.  I set layout.css.devPixelsPerPx = 1.0 which gives me 96dpi in Fx and the borders are fine.

Comment 4

[:Gijs (out for now; he/him)]

Gary are you still seeing this on recent versions of Firefox?

Comment 5

[Gary [:streetwolf52]]

Buttons look fine. Time to close this.

Comment 6

[:Gijs (out for now; he/him)]

Thanks!