Green border on MP4 videos
Yesterday when the beta channel updated to 55 all MP4 videos starting showing a thick green line at the bottom. The problem goes away when I start in Safe Mode.
- Safe Mode - NO problem, NO green line. - New profile - Problem persists. - All addons disabled on normal profile without safe mode - Problem persists. - Hardware acc. disabled - Problem persists. - Reset all my custom prefs on about:config (even the default modified ones that fills in after restart) - Problem persists.
Whatever Safe Mode is doing seems to do the trick. I suspect it disables hardware compositing but I haven't figured a way to configure that on Normal Mode.
Might this be a BETA issue? Or am I missing something?
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guigs said
Hi ZzzZombi, Safe Mode could mean that it could be an add on as well, however you mentioned in a new profile it happens so that may not be it. It could still be a combination of one or two add ons. You are correct, the other culprit could be hardware acceleration. In your about:support info there is a Graphics section. If you could see if there are any pending updates in your web gl or graphics card? Try that and please post back your results, then we can file a bug if its a specific graphics issue. Ty!
After disabling/enabling various about:config hardware related entries, I found out disabling "media.windows-media-foundation.allow-d3d11-dxva" entry solved my problem.
For clarity, I have a Geforce 8800GT GPU (quite old). I guess my GPU, or rather, the driver I use have the old dxva DLLs for DirectX video. So Firefox tried to find the corresponding newer DLLs, therefore the problem occured (this is all my speculation, I'm no hardware expert)
MP4 videos work perfectly as they were before. I don't know if I should keep that entry disabled and just use it like that on this machine or is this really a bug and that setting shouldn't be enabled on my GPU.
By the way, here's the link to an MP4 video that I had problem: https://www.quirksmode.org/html5/videos/big_buck_bunny.mp4
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Hi ZzzZombi, Safe Mode could mean that it could be an add on as well, however you mentioned in a new profile it happens so that may not be it. It could still be a combination of one or two add ons.
You are correct, the other culprit could be hardware acceleration. In your about:support info there is a Graphics section. If you could see if there are any pending updates in your web gl or graphics card?
Try that and please post back your results, then we can file a bug if its a specific graphics issue. Ty!
Can you please also grab the link to where this is happening so that we can file a test bug, I am going to file a bug in Graphics Audio/Video, however if you feel comfortable - and they you can cc this person:
This is probably because the player doesn't fully occupy the space that the overlay creates leaving some green background visible (this overlay usually shows as a green block).
What happens when player controls are displayed?
Is that in the green area?
Seçilen çözüm
guigs said
Hi ZzzZombi, Safe Mode could mean that it could be an add on as well, however you mentioned in a new profile it happens so that may not be it. It could still be a combination of one or two add ons. You are correct, the other culprit could be hardware acceleration. In your about:support info there is a Graphics section. If you could see if there are any pending updates in your web gl or graphics card? Try that and please post back your results, then we can file a bug if its a specific graphics issue. Ty!
After disabling/enabling various about:config hardware related entries, I found out disabling "media.windows-media-foundation.allow-d3d11-dxva" entry solved my problem.
For clarity, I have a Geforce 8800GT GPU (quite old). I guess my GPU, or rather, the driver I use have the old dxva DLLs for DirectX video. So Firefox tried to find the corresponding newer DLLs, therefore the problem occured (this is all my speculation, I'm no hardware expert)
MP4 videos work perfectly as they were before. I don't know if I should keep that entry disabled and just use it like that on this machine or is this really a bug and that setting shouldn't be enabled on my GPU.
By the way, here's the link to an MP4 video that I had problem: https://www.quirksmode.org/html5/videos/big_buck_bunny.mp4
Any news on this issue? I started noticing it happening to me a couple of weeks ago. For instance, a green 10½ pixel high green bar in the bottom of YouTube videos (visible under the controls). It's also present in full screen and when the controls are hidden. Also visible on other video sites (e.g. teamcoco.com/videos).
I have a nVidia GeForce GTX 260 graphics adapter with the most current driver (342.01). I'm currently running FF 55.0.2 (64-bit) on Windows 10 with all updates applied.
Hi dubbekarl, Since you have a different GPU, please open up a new question and reference this one. It is not the same issue, however same symptoms.
Thank you for your help, and I look forward to troubleshooting yours.
All the best.
Thank you for the reminder here, for those that take an interest in this, I also filed a bug in Bug 1395665
New question created as requested:
guigs said
Hi dubbekarl, Since you have a different GPU, please open up a new question and reference this one. It is not the same issue, however same symptoms. Thank you for your help, and I look forward to troubleshooting yours. All the best.
Judging by the comments in the other thread I created, circumventing the bug using about:config or always running the browser in Safe Mode is the correct solutions that everyone should use. So back to Chrome it is.
I have the same problem, with EVGA GeForce 8600 GT, using latest nvidia driver. Windows 10 x64 bit, 1920x1080. No problem with Edge or IE. Have tried with and without hardware acceleration, and with all plugins disabled - same green border(s). Disabling "media.windows-media-foundation.allow-d3d11-dxva" does not help. Safe mode - no problem.
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