1075307 - Icons and graphical details disappear when left unattended

Status: UNCONFIRMED

(Core :: Graphics, defect)

Description

[J. Wimmer]

Leaving a locked computer unattended for several hours (4 to 8) with Firefox in the foreground prior to locking it results in the disappearance of several graphical elements that constitute the main graphical interface once the workstation is unlocked.

Notable elements include the default toolbar buttons, the tab outline graphics, tab title text, tab favicons, and the three standard window control buttons (minimize, restore, and close)

I neglected to capture a screenshot, but will attempt to do so upon the next occurrence.

Comment 1

[Loic]

In addition, type about:support and post the details of the graphics section.

Comment 2

[J. Wimmer]

Graphics Data from about:support

Graphics
--------

Adapter Description: Intel(R) HD Graphics 4000
Adapter Drivers: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32
Adapter RAM: Unknown
Device ID: 0x0166
DirectWrite Enabled: false (6.3.9600.17111)
Driver Date: 8-19-2013
Driver Version: 10.18.10.3277
GPU #2 Active: false
GPU Accelerated Windows: 0/2 Basic
Vendor ID: 0x8086
WebGL Renderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D9Ex vs_3_0 ps_3_0)
windowLayerManagerRemote: false
AzureCanvasBackend: skia
AzureContentBackend: cairo
AzureFallbackCanvasBackend: cairo
AzureSkiaAccelerated: 0

Comment 3

[J. Wimmer]

Attachment: The bug occured. This is data dumped after noticing the bug occurance

I just came back to my machine after leaving it idle for approximately 16 hours and noticed that the bug had occurred. Attached is a screenshot of the bug as well as an about:support raw_json dump and an about:memory overview

Comment 4

[J. Wimmer]

The bug has occurred again. See the latest attachment for additional information

Comment 5

[J. Wimmer]

With the absence of the three standard window controls, I am also unable to close a window by clicking in the area in which the 'close window' button would normally appear. Ctrl + W and ALT + F4 still work as expected however.