Open Bug 1385551 Opened 7 years ago Updated 2 years ago

Browser becomes very sluggish if video driver restarts

Categories

(Core :: Graphics, defect, P3)

Product:
Core
Component:
Graphics
Platform:
x86_64
Windows 10
Type:
defect

Tracking

()

Status:
UNCONFIRMED
Tracking Flags:
Tracking Status
firefox57 --- fix-optional

People

(Reporter: josh.tumath+bugzilla, Unassigned)

Details

(Whiteboard: [gfx-noted]) 

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0
Build ID: 20170728100358

Steps to reproduce:

1. In Windows, open the Device Manager
2. Disable and re-enable the video driver.

Note: I am using a 4K screen and 200% DPI. While the video driver is disabled, the display changes to a lower resolution and 100% DPI.


Actual results:

Firefox becomes extremely sluggish. Scrolling is very slow; videos will not render (just show a black screen); some things are slow to load and render. Restarting the browser fixes the problem immediately.
OS: Unspecified → Windows 10
Hardware: Unspecified → x86_64
status-firefox57: --- → fix-optional
Priority: -- → P3
Whiteboard: [gfx-noted]
Severity: normal → S3
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