Closed Bug 1080740 Opened 10 years ago Closed 9 years ago

The devtools debugger content window has antialising or subpixel rendering that flashes on and off

Categories

(Firefox :: General, defect)

x86
macOS
defect
Not set
normal

Tracking

()

RESOLVED DUPLICATE of bug 1220371

People

(Reporter: kats, Unassigned)

References

Details

Attachments

(1 file)

STR:
1. Get the latest aurora desktop build for OS X (34.0a2 2014-10-09 is what I'm using) and start it with a fresh profile.
2. Hook up to the main process of Fennec using the remote debugger. Steps at [1], but in summary:
2a. Enable the devtools.debugger.remote-enabled pref on desktop
2b. Enable the remote debugging option in Fennec's settings, plug in the device, and do the adb port-forwarding thingy
2c. Use the desktop remote debugger to connect to the device, and attach to the main process
3. In the new devtools window that opens, switch to the debugger tab, select browser.js from the file list, and put focus in the browser.js code window.
4. Scroll down and stare very closely at the code window

Expected results:
- The text renders normally

Actual results:
- The text renders, but flashes between antialised and not, or something along those lines. It seems to flash 3 times and then stop.

I'll see if I can attach a video of it, although it likely won't be very obvious in the video.

[1] https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Firefox_for_Android
Attached video Video of the effect (deleted) —
Not a great video but if you look at the "Pass this a locale string" comment about a quarter of the way down the code window after the scrolling stops, you'll see if flashing.
(I had trouble with the video playback, filed bug 1080748)

Ideally we should be able to extract the test case HTML and reduce it. I'm guessing that the flashing is caused by a change in layerization.
Forward-duping to a bug with more dependencies.
Status: NEW → RESOLVED
Closed: 9 years ago
Resolution: --- → DUPLICATE
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