View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000662 | madVR | bug | public | 2021-02-05 01:11 | 2024-02-02 09:59 |
| Reporter | goraelec | Assigned To | |||
| Priority | high | Severity | major | Reproducibility | always |
| Status | new | Resolution | open | ||
| Summary | 0000662: non-DXVA chroma upscaling produces severe banding | ||||
| Description | I first noticed this while using the builds from https://www.avsforum.com/threads/improving-madvr-hdr-to-sdr-mapping-for-projector.2954506/page-486#post-60235595 . I started getting severe banding whenever I switched to one of those builds. I tried this again today with 123b and got the same banding. This is what I did to troubleshoot: 1. Called up debug menu with Ctrl+J on 123b and noted down what I saw there 2. Reverted to the latest stable build and did the same The first difference I noticed was that the stable build showed `chroma > DXVA` while 123b showed `chroma > Jinc AR` which is what I actually set up in `chroma upscaling`. I reverted back to the latest stable build and unchecked `use DXVA for chroma upscaling...` in `trade quality for performance` options and reproduced the same banding I saw on 123b. So there are two issues here, I think: 1. non-DXVA chroma upscaling produces severe banding 2. builds 122-123b (these are the only ones I used) don't follow `use DXVA for chroma upscaling...` settings | ||||
| Tags | No tags attached. | ||||
| madVR Version | 0.92.17 | ||||
| Media Player (with version info) | MPC-HC 1.9.8.148 | ||||
| Splitter (with version info) | LAV 0.74.1.92-git | ||||
| Decoder (with version info) | LAV 0.74.1.92-git | ||||
| Decoding | DXVA2 Native | ||||
| Deinterlacing | none (progressive) | ||||
| DXVA2 Scaling Active | no | ||||
| Aero / Desktop Composition | <select> | ||||
| Problem occurs with mode | all modes | ||||
| GPU Manufacturer | AMD | ||||
| GPU Model | Vega Frontier Edition | ||||
| GPU Driver Version | 20.Q4 | ||||
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To add, I tried all possible options besides Jinc AR and got the same banding on all of them |
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It's probably DXVA Native decoding which causes this (?). Have you tried DXVA Copyback or Software decoding? |
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I don't have any banding when DVXA is turned on, actually. Copyback doesn't make a difference |
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Not sure what to say, nobody else has reported a similar issue. Maybe reverting to the madVR default settings helps, by double clicking the "restore default settings.bat" batch file? |
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Thank you SO much for posting this. I have been struggling with this issue on and off for MONTHS and now I can finally reproduce the issue on my PC and work around it. |
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How did you work around it? Would be great if you could describe it in detail, in case other users run into the same issue in the future. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2021-02-05 01:11 | goraelec | New Issue | |
| 2021-02-05 01:12 | goraelec | Note Added: 0002785 | |
| 2021-02-08 18:57 | madshi | Note Added: 0002786 | |
| 2021-02-15 09:35 | goraelec | Note Added: 0002790 | |
| 2021-02-15 11:21 | madshi | Note Added: 0002791 | |
| 2024-02-02 09:36 | th3w1zard1 | Note Added: 0003096 | |
| 2024-02-02 09:59 | madshi | Note Added: 0003097 |
