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18th October 2021, 02:30 | #62101 | Link | |
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Trying different GPU drivers is what I would do, if I wanted to stay on 7.
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madVR options explained |
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18th October 2021, 09:31 | #62102 | Link | ||
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I have not yet been able to reduce the bandwidth by changing the Output Formats in the LAV. Am I missing something? Pic.
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R3 3200G / Vega8 / Samsung UE40NU7100 Win11Pro 21H2 / 4K RGB 59Hz / AMD last driver MPC-HC 1.9.17 / madVR 0.92.17 / FSW / SM / 8bit |
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18th October 2021, 11:33 | #62104 | Link |
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Then there is no point in this "trick". A much more efficient solution to reduce bandwidth is to "use 10bit chroma/image buffer instead of 16bit".
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R3 3200G / Vega8 / Samsung UE40NU7100 Win11Pro 21H2 / 4K RGB 59Hz / AMD last driver MPC-HC 1.9.17 / madVR 0.92.17 / FSW / SM / 8bit |
18th October 2021, 13:51 | #62107 | Link | |
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Your graphs might only be showing direct CPU=>DRAM transfers, and not CPU=>GPU(=>DRAM).
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MPC-HC 2.1.7.2 |
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18th October 2021, 14:25 | #62109 | Link |
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Is the "1 repeat frame every x minutes" on Ctrl+J accurate?
I fine-tuned my refresh rate with CRU so that my display rate on Ctrl+J is 23.97605hz, but when playing a 23.976 video it's saying "1 repeat frame every 12 minutes" which seems way too often. By my calculation it should be something like 1/(23.97605-23.976) = 1 repeat frame every 20,000 seconds (5.5 hours). Also should I trust the reported display rate on Ctrl+J, because I noticed it has a discrepancy of about 0.003hz vs the rate reported in Radeon Settings. Doesn't sound like much but it would amount to a repeat frame every 5.5 minutes. |
18th October 2021, 15:21 | #62110 | Link | |
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Quote:
https://forum.doom9.org/showthread.php?t=173571
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LG 77C1 - Denon AVC-X3800H - Windows 10 Pro 22H2 - Kodi DSPlayer (LAV Filters, xySubFilter, madVR, Sanear) - RTX 4070 - Ryzen 5 3600 - 16GB RAM |
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18th October 2021, 16:14 | #62111 | Link | |
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R3 3200G / Vega8 / Samsung UE40NU7100 Win11Pro 21H2 / 4K RGB 59Hz / AMD last driver MPC-HC 1.9.17 / madVR 0.92.17 / FSW / SM / 8bit |
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19th October 2021, 04:41 | #62113 | Link | |
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It turns out my 23.976hz and 50.0hz modes are already well tuned from factory, with Ctrl+J reporting 1 repeat frame every 2-4 hours. So I didn't need to tweak those modes. However my 59.94hz mode is reporting 1 dropped frame every 3 minutes with 59.94fps video, so I need to speed up the refresh rate a bit. This is where I ran into trouble as it seems the AMD driver or monitor only allows me tuning +/-0.003hz, otherwise it just falls back to the default timing. So the most I could achieve was 59.943hz which reports 1 repeat frame every 1.5 hours. Not great, but tolerable. Curiously, the value first starts out at 1 repeat every 10 minutes, then gradually starts climbing until after ~2 minutes of playback it starts reporting 1-2 hours. But then sometimes it goes back down again to around 30 minutes for no apparent reason. All the while the display rate remains consistent, so I'm guessing it's the audio or system clock that is fluctuating. I'm sure I could improve this if the driver/monitor allowed more than +/-0.003hz tuning, however I think it may be limited to this narrow range as it's a HDMI mode (1080p YCbCr 4:4:4) and maybe HDMI has strict timing requirements? |
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19th October 2021, 17:51 | #62114 | Link |
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I doubt that in the case of the iGPU, the quality and number of PCIe lanes matters. The iGPU is connected to the CPU using Infinity Fabric (AMD) or the Ring Bus (Intel). In both cases, the bandwidth of such a connection will be much larger than that of an external PCIe. And the DRAM bandwidth will be the bottleneck.
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R3 3200G / Vega8 / Samsung UE40NU7100 Win11Pro 21H2 / 4K RGB 59Hz / AMD last driver MPC-HC 1.9.17 / madVR 0.92.17 / FSW / SM / 8bit |
19th October 2021, 23:32 | #62115 | Link | |
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I am glad you found the guide at least somehow useful. I should rewrite it but I never find the time.
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LG 77C1 - Denon AVC-X3800H - Windows 10 Pro 22H2 - Kodi DSPlayer (LAV Filters, xySubFilter, madVR, Sanear) - RTX 4070 - Ryzen 5 3600 - 16GB RAM |
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20th October 2021, 02:14 | #62116 | Link | |
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I suspect it's because the HDMI 1080p mode I'm using isn't a "PC mode" but rather a "TV mode", and perhaps TV mode rates are more strictly standardised by HDMI spec. I am limited to "TV mode" HDMI signal as otherwise my TV thinks it's a "PC mode" and disables a lot of picture controls and uses different processing which I don't like. edit: and I'm pretty sure the TV's 24hz mode wouldn't work either unless it's the specific TV mode HDMI 1080p24hz signal. Last edited by flossy_cake; 20th October 2021 at 02:34. |
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20th October 2021, 13:30 | #62118 | Link | |
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So now when I double click a video file, MPC-HC opens it automatically in full screen, in MadVR exclusive mode, with desktop compositor disabled. Then after exiting the video, MadVR reinstates desktop compositor, and compositor appears to be running at full frame rate, thus bypassing the compositor bug. The relevant MadVR settings are in rendering > general settings: - tick: enable automatic fullscreen exclusive mode - tick: disable desktop composition - untick: use Direct3D 11 for presentation For convenience I'm also setting rendering > exclusive mode > untick delay switch to exclusive mode by 3 seconds. In theory this configuration should be compatible with Kodi, but I haven't tested it yet. |
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20th October 2021, 22:07 | #62119 | Link | |
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You can select both PC (VESA) timings and HDMI (SMTPE) timings. If you use the advanced tab, you have all the details and work it out from there.
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LG 77C1 - Denon AVC-X3800H - Windows 10 Pro 22H2 - Kodi DSPlayer (LAV Filters, xySubFilter, madVR, Sanear) - RTX 4070 - Ryzen 5 3600 - 16GB RAM |
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22nd October 2021, 19:40 | #62120 | Link |
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madVR can`t switch the display modes.
-------------------- madVR 141 Win 11 22000.258 NVIDIA ForceWare 496.13 DCH ================ There are no problems with switching modes on another configuration: Win 10 19043.1200 NVIDIA ForceWare 472.12 Standart |
Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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