User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.102 Safari/537.36

Steps to reproduce:

• go to cineshader.com
• use "Take screenshot" from right click menu

Also these details may be important.

• Firefox was running on windows 10, gpu is nvidia gtx1070Ti, nvidia driver is version 432.00
• The bug disappears if I disable hardware acceleration

Actual results:

screenshot vaguely remids actual image, but with lot's of random noise

Expected results:

screenshot as if it was taken with disabled hardware acceleration

Bugbug thinks this bug should belong to this component, but please revert this change in case of error.

:turkeevm, thanks for reporting! There is a separate bug filed about screenshots with hardware acceleration enabled (Bug 1643989), but I'm not sure if one fix will address both issues. I'm going to redirect this to the graphics team

Could you attach about:support, please?
Adding to gfx-triage, given that we have multiple reports for this, need to figure out how to schedule a fix.

Hello! Unfortunately I can't spot the difference between a screen shot taken with hardware acceleration and the one without.
If you could please point me on what to look for so I can look for a regression for this issue afterwards.

Negritas, the difference should be quite stark. See the two attached screenshots. Maybe try on different hardware?

Regression back on 7-9 -

Bug 1642994 - Fix SurfaceTexture assertion failure in WebGLContext::GetFrontBuffer r=jgilbert

• WaitForBufferOwnership() must be called before locking the front buffer
• Use mDefaultFB->mFB instead of 0 to fix a freeze in the readPixels call
• SurfaceTexture.releaseTexImage must be called after each use

Differential Revision: https://phabricator.services.mozilla.com/D82944

I think you meant the other Jeff

Thank you Jeff Muizelaar for the info!
I have tried using a different nvidia driver (431.60) on a laptop dell g3 with nvidia gtx 1050, I couldn't reproduce the issue even after changing the driver. I think it might be a hardware related issue and unfortunately I don't have such hardware to test.

these guys were able to reproduce the issue. I don't know which hardware did they used though. https://github.com/DevExpress/testcafe/issues/5533

Now I know

NVIDIA GeForce GTX 1660 SUPER
Driver version: 26.21.14.4108
Driver date: 22.10.2019
DirectX version: 12 (FL 12.1)

I can't seem to repro on my AMD GPU machine (82.0.3 or 84nightly). I'll take a look on my NV machines tomorrow, as well as try forcing NV on my hybrid machines with NV dGPUs.

Interestingly, bug 1643989 appears to report a similar issue, but with WebRender without WebGL, on Windows/Intel GPU

Still reproducible for me on Win10 Nightly w/ nVidia Quadro P2000 and latest drivers.

Ok I see this on a gtx980ti, so it seems like it's NV-specific.

Not reproducible for me on GTX 1070, NVIDIA 471.96 drivers and latest Windows 10.

Ryan, does this still reproduce for you?

Works for me too. Probably fixed by bug 1661869.