View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000587 | madVR | bug | public | 2018-12-12 23:24 | 2018-12-18 19:41 |
| Reporter | MK36 | Assigned To | madshi | ||
| Priority | low | Severity | minor | Reproducibility | have not tried |
| Status | closed | Resolution | no change required | ||
| Platform | PC - Acer Aspire VX5-591G | OS | Windows 10 Home 64-bit | OS Version | 1809 |
| Summary | 0000587: Reduce banding artifacts does not work properly in D3D11 10bit display mode. | ||||
| Description | De-banding(and possibly other options) visibly does not work with mine LG TV in D3D11 10bit mode. Changing "the native display bitdepth" to 8bits solves the issue. Using HDMI 1.4 connection. | ||||
| Additional Information | HDMI v1.4 Codec Tweak Tool | Log file | Generated at 2018-12-12 23:01:14 ##### System Information ##### OS: Windows 10 Home (10.00.17763) (x64) CPU name: Intel(R) Core(TM) i5-7300HQ CPU @ 2.50GHz CPU speed: 2496 MHz (4t) Memory: 8064 MB Screen size: 1920x1080 (32bits) (60Hz) Video card 1: Intel(R) HD Graphics 630 VendorID: 8086, DeviceID: 591b Video mem: 1024 MB Video driver: igdumdim64.dll (Version 25.20.100.6444) (11-19-2018) Video card 2: NVIDIA GeForce GTX 1050 VendorID: 10de, DeviceID: 1c8d, SubSys: 11281025 Video mem: 4096 MB Video driver: nvldumdx.dll (Version 25.21.14.1694) (11-12-2018) Audio device: NVIDIA Virtual Audio Device (Wave Extensible) (WDM) VendorID: 0955, DeviceID: 9000 Audio driver: nvvad64v.sys (Version 4.11.1.0) (8-22-2018) ##### K-Lite Codec Pack ##### KLCP version: 14.5.8 KLCP type: full Speaker conf: 2.0 MPC renderer: madVR MPC subs: ISR MPC audio: System Default ##### Decoder Settings ##### LAV Video: H264=D3D11VA HEVC=D3D11VA VP9=D3D11VA VC1=D3D11VA MPEG2=D3D11VA MPEG4=1 WMV3=0 LAV Audio: MP3=1 AC3=B DTS=B DTSHD=1 EAC3=1 TRUEHD=1 AAC=1 Vorbis=1 LPCM=1 WMA=0 | ||||
| Tags | No tags attached. | ||||
| madVR Version | 0.92.17 | ||||
| Media Player (with version info) | MPC-HC (Nightly, 64-bit) v1.8.3.8 | ||||
| Splitter (with version info) | LAV Splitter: 0.73.1.0 | ||||
| Decoder (with version info) | LAV Video: 0.73.1.0 | ||||
| Decoding | <select> | ||||
| Deinterlacing | none (progressive) | ||||
| DXVA2 Scaling Active | no | ||||
| Aero / Desktop Composition | On | ||||
| Problem occurs with mode | all modes | ||||
| GPU Manufacturer | NVidia + Intel | ||||
| GPU Model | NVIDIA GeForce GTX 1050 | ||||
| GPU Driver Version | nvldumdx.dll (Version 25.21.14.1694) (11-12-2018) | ||||
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I don't think this is a madVR bug. This probably means that your OLED simply doesn't handle 10bit input properly. But I'd suggest that you make sure by double checking with some native 10bit content. Is that completely banding free on your OLED? (Also make sure you have your GPU set to 0-255/Full RGB output.) |
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Display info + comparison screenshots https://drive.google.com/open?id=1jJeVf09SOWMZqjZIhzj4MPqPBOqXetSs |
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Capturing 10bit in screenshots is difficult, or even impossible, because the media players only support 8bit screenshot files. |
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I believe that for some reason TV just can't handle 10bit depth over HDMI, it's a shame because internally can play 10bit HVEC videos just fine(not 10bit AVC though). That theory would make sense, because it would be another issue(particularity stuttering in 1080p 120hz mode) |
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The best way to double check is to play native 10bit test image/videos via madVR, e.g. a smooth grayscale. If that has banding, it's probably either the GPU driver (of configuration) or the TV which is at fault. |
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Screenshots(of the same frame) were made by windows, but for some reason are representative of my experience(actual banding on the TV was really visible even without tweaking screenshots in gimp) |
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Thanks for hints, so i have finished testing. 1)Windows does not display 10bit(I believe that's possibly the main issue). 2)When playing 'Gradient' 8bit h.264: Debanding does work in 10bit, slightly, but best results were in 8bit mode. (If it's isolated incident of mine it would suggest that my TV does not like 10bit signal very much) 3)When playing 10bit h.265 (16bit image converted to 10bit HVEC) video debanding(because compression) produced similar results(good)[for some reason could't play still images fullscreen]. Conclusion: I'm going to update drivers(hopefully this time they will not lock my clocks to 2D speeds) and stick with good old 8bit output. Thanks again for help. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2018-12-12 23:24 | MK36 | New Issue | |
| 2018-12-12 23:28 | madshi | Note Added: 0002447 | |
| 2018-12-12 23:28 | madshi | Assigned To | => madshi |
| 2018-12-12 23:28 | madshi | Status | new => feedback |
| 2018-12-12 23:28 | MK36 | Note Added: 0002448 | |
| 2018-12-12 23:28 | MK36 | Status | feedback => assigned |
| 2018-12-12 23:35 | madshi | Note Added: 0002449 | |
| 2018-12-12 23:57 | MK36 | Note Added: 0002450 | |
| 2018-12-13 00:06 | madshi | Note Added: 0002451 | |
| 2018-12-13 00:19 | MK36 | Note Added: 0002452 | |
| 2018-12-13 18:41 | MK36 | Note Added: 0002453 | |
| 2018-12-18 19:41 | MK36 | Status | assigned => closed |
| 2018-12-18 19:41 | MK36 | Resolution | open => no change required |
