Flashing in on-screen graphics (Windows 10) (Can post logs if needed)
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2018-09-21, 05:18 PM
NumberFive Wrote:Would you be able to tell me are there any particular methods that NextPVR is calling when it renders the TV Guide / programme info / timeline on top of the video?NextPVR uses the EVR renderer's IMFVideoMixerBitmap interface, to call SetAlphaBitmap() for displaying graphics overlaid on the video. The same api calls are made for all video cards, but for some reason it's not working with your Intel device.
2018-09-21, 05:19 PM
NumberFive Wrote:Very similar to what I've found, older Intel graphics are fine, but the newer ones (500, 600 series) are having problems.For the record, my laptop has Intel 655 graphics in it, and I don't see the issue there.
2018-09-21, 05:21 PM
You could try setting <OSDTransparency>1.0</OSDTransparency> in config.xml, to see if it makes any difference.
2018-09-21, 07:03 PM
Hi sub,
Thanks very much for that. I'm in touch with Intel, and that is useful. I've seen a few forum posts there which mention issues with DirectX / EVR on the newer chipsets, which didn't exist on older ones. That's exactly my experience. Working: - Intel 4000 graphics - nVidia (various cards old and new) - AMD (various cards old and new) - Intel Iris Plus 655 (sub's card) Not working: - Intel HD 505 - Intel HD 520 - Intel UHD 630 (bgtees's - OP) - Intel UHD 605 I tried changing the setting, and the OSD goes black as expected, but still flickers. Intel have asked me to send in a form with instructions on how to reproduce the problem. I'm going to do that later today.
"It's better than a box!"
2018-09-21, 08:21 PM
I agree something is off in NextPVR because I just got a new PC with the UHD 630 and by default it is
2018-09-21 16:11:55.298 [DEBUG][1] Using Direct2DHelper I then had to install the runtime from here https://www.microsoft.com/en-us/download...g=en&id=35 and got 2018-09-21 16:19:34.488 [DEBUG][1] Using Direct3DHelper Martin
2018-09-21, 08:36 PM
Just to be clear - the Direct3D/Direct2D menu renderers, and video renderers used during playback are two entirely separate, unrelated things.
mvallevand Wrote:I agree something is off in NextPVR because I just got a new PC with the UHD 630 and by default it isThis is normal. Direct2DHelper is the default, and should work with pretty much all video cards. It will switch to using the Direct3DHelper if the DirectX 9.0 runtime is available on the machine. These are only used for drawing the menu screens, not for video playback. The Direct3DHelper is slightly better than the Direct2DHelper, with clearer fonts when scaling, so preferred if it is available, but otherwise the Direct2DHelper is used, and fine for most people. Do you see the flicking OSD shown in the OP's video? https://www.youtube.com/watch?v=oKLFnUlJ7d8
2018-09-21, 08:38 PM
NumberFive Wrote:Hi sub,If you change temporarily lower your desktop resolution, does the flickering go away? If you flick between the different aspect ratios, using F7 key, does the problem away on any of them?
2018-09-21, 08:47 PM
sub Wrote:Just to be clear - the Direct3D/Direct2D menu renderers, and video renderers used during playback are two entirely separate, unrelated things. . Agreed but since the OSD flickering over the video is the topic here I believe there is a relation. It would be worth seeing if the problem goes away. Martin
2018-09-21, 09:05 PM
You can run "nextpvr.exe -no3d" for it to fall back to software rendering of the menus, just dealing with GDI and bitmaps (no direct2d/direct3d), to see if it makes any difference.
2018-09-21, 10:00 PM
Hi Martin,
I've been round this loop myself. I think I tried to convince myself things were better with Direct2D or Direct3D, but ultimately it made no difference. The old thing that changes it for the better is to switch to VMR9, but then the graphics don't look as nice. It's a really annoyance because these new Intel low power chipsets are otherwise so good.
"It's better than a box!"
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