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Old 7th November 2024, 10:30   #65461  |  Link
varekai
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Quote:
Originally Posted by olgafrolova View Post
Hello!
I have an old PC (i72600k / 16 gb).
Can you please advise what is the minimum video card from RTX 30xx-40xx needed to watch 4K HDR Blu-ray (HEVC/H.265) with a bitrate of under 80 MB?
*on my old one gtx580 3gb has severe freezes
Thanks!
I have the exact same setup i7-2600K CPU (! Intel® HD Graphics 3000 ! Not in use !), 16 GB RAM, for streaming movies to TV via HDMI.
Had CPU overclocked to 4430MHz with an GPU Nvidia 960 GTX Ti 4GB, that setup worked just fine for 1080p but poorly with newer higher definition movies like 2160p (SDR) and not at all with HDR material.
Got an GPU Nvidia RTX 4060 8GB. Plugged it in and the PC refused to start... it took a while before I realized the CPU was the bottleneck.
Clocked down to 3813 MHz and all OK.
But... higher definition content weighs down the CPU heavily, sometimes so badly that video stutters and becomes unwatchable.
GPU uses ~ 35-50%. But no crashes, however, some HDR material can still be watched, I don't understand why some work and others don't, can only guess that the encoding of the movies plays a role?
Using madVR with various mediaplayers depending on material.
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Old 7th November 2024, 12:17   #65462  |  Link
huhn
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try d3d11 native decode.
disable mpeg2 and H264 so it will use software and can deint.

you may need win 11 to get AV1 hardware decode.

this may work except for UHD H264.
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Old 7th November 2024, 15:41   #65463  |  Link
varekai
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Quote:
Originally Posted by huhn View Post
try d3d11 native decode.
disable mpeg2 and H264 so it will use software and can deint.
you may need win 11 to get AV1 hardware decode.
this may work except for UHD H264.
Excellent! Thanks for the tip!
It's been a while since I changed anything in the LAV configurations, new settings made a big difference.
Just tested some videos and from going from CPU load ~80-90% and GPU load ~35% to new settings CPU ~30% and GPU ~60%.
And even some video that with old settings stutters now floated on just fine! Perfect!
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Old 7th November 2024, 17:46   #65464  |  Link
WicketW
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I've started using the driver restart utility that comes with CRU when I want to watch something, seems to help. If I don't then glitches just keep ticking in madvr, this usually happens when I've left the computer on for a while or it's been woken up from sleep.
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Old 7th November 2024, 21:47   #65465  |  Link
AuRiMaS666
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Originally Posted by rod93 View Post
Hello, problem with stuttering during video playback with the Nvidia GPU (glitches), the problem appeared suddenly regardless of the playback software, complete reinstallation of the machine and drivers with the same problem, I also tested the GPU memory without issue. The stuttering does not appear immediately but after a few moments only in full screen, it is enough to switch the video to windowed mode and it disappears, then reappears when I switch back to full screen. I specify that even leaving the default settings in madVR does not change anything, it occurs at all frequencies with Vsync activated in the Nvidia settings.
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Originally Posted by rod93 View Post
I found a temporary solution for those encountering the issue: in madVR, it is necessary to disable “desktop composition” in the general rendering settings. I suspect this is a new bug that appeared with Windows 11 24H2. However, I now encounter another problem: when I switch the Nvidia card to 10-bit mode in SDR, the screen turns completely magenta.
Sounds like exactly the same problem I was having after upgrading to Win 24H2. The solution was to disable Hardware-Accelerated GPU Scheduling. Since then I have watched several movies with no noticeable stutters and zero random glitches being collected in madVR OSD.
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Old 7th November 2024, 22:18   #65466  |  Link
rod93
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Quote:
Originally Posted by AuRiMaS666 View Post
Sounds like exactly the same problem I was having after upgrading to Win 24H2. The solution was to disable Hardware-Accelerated GPU Scheduling. Since then I have watched several movies with no noticeable stutters and zero random glitches being collected in madVR OSD.
Thanks but already tried it is the same by disabling the vSync in the Nvidia it works perfectly but obviously the movie is not watchable because the screen is all rip, I lean rather for a problem with the vSync now
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Old Yesterday, 05:20   #65467  |  Link
flossy_cake
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I very much doubt aurimas666 watches video without vsync

If you're using a dual GPU then I'm guessing it's a laptop or some brand name pre-built computer by Dell or something. I would strongly recommend getting out of those ecosystems and doing your own build with proper desktop form factor parts

Last edited by flossy_cake; Yesterday at 05:24.
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Old Yesterday, 14:56   #65468  |  Link
rod93
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Originally Posted by flossy_cake View Post
I very much doubt aurimas666 watches video without vsync

If you're using a dual GPU then I'm guessing it's a laptop or some brand name pre-built computer by Dell or something. I would strongly recommend getting out of those ecosystems and doing your own build with proper desktop form factor parts
Yes, you're correct. The laptop is smaller, and my projector is in the main room. I don't want to place a desk near the projector. Besides, it's not an issue with the laptop but rather with Windows 11.
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Old Yesterday, 14:59   #65469  |  Link
rod93
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Hi, regarding my workaround, it’s the “Hardware-Accelerated GPU Scheduling” setting that needs to be disabled in the Windows graphics settings, and you must restart after disabling it, otherwise it won’t work. The “composition rate” drops to 23Hz after 10-15 minutes, but no more stuttering or glitches. (thk to flossy_cake)

For your information, when I disable VSync, it works perfectly (well, with the screen completely torn, of course). So now, I’m leaning more towards a problem with VSync. I enabled triple buffering to see if it would help, but it doesn’t.

I still have a minor issue where the screen suddenly goes black, switches to windowed mode, and then comes back or not, like an auto-detection of the screen. You can see it in the “devices” of madVR, for example, I have more than 40 “identification” lines for my projector. (I don’t remember how to disable auto-detection of monitors in Windows).
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Old Yesterday, 16:57   #65470  |  Link
AuRiMaS666
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Originally Posted by flossy_cake View Post
I very much doubt aurimas666 watches video without vsync.
Yes, MPC-HC always has Vsync ON in NVCPL. Been using it like that for years with no issues.

HAGS also was ON for the whole 2 years since switching to Win 11, but with 24H2 upgrade something has changed under the hood and HAGS became a problem.

These are just my observations, pity this doesn't fully solve your problem.
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Old Yesterday, 21:19   #65471  |  Link
Sunspark
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Do other actively developed renderers experience these issues with Nvidia and newer Windows builds?
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Old Yesterday, 22:46   #65472  |  Link
rod93
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Here is the real solution: the “composition rate” remains perfectly stable, and the fans are much quieter, at the cost of a slightly increased rendering time on this scene by 2 to 3 ms. follow these steps:

On the “.exe” file of your playback software, right-click > Properties > Compatibility > check “Disable fullscreen optimizations”.
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Old Today, 03:27   #65473  |  Link
tp4tissue
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Quote:
Originally Posted by varekai View Post
I have the exact same setup i7-2600K CPU (! Intel® HD Graphics 3000 ! Not in use !), 16 GB RAM, for streaming movies to TV via HDMI.
Had CPU overclocked to 4430MHz with an GPU Nvidia 960 GTX Ti 4GB, that setup worked just fine for 1080p but poorly with newer higher definition movies like 2160p (SDR) and not at all with HDR material.
Got an GPU Nvidia RTX 4060 8GB. Plugged it in and the PC refused to start... it took a while before I realized the CPU was the bottleneck.
Clocked down to 3813 MHz and all OK.
But... higher definition content weighs down the CPU heavily, sometimes so badly that video stutters and becomes unwatchable.
GPU uses ~ 35-50%. But no crashes, however, some HDR material can still be watched, I don't understand why some work and others don't, can only guess that the encoding of the movies plays a role?
Using madVR with various mediaplayers depending on material.
2600k should be able to bruteforce 4K HDR at 5ghz. But very few gold chips out there. Though sandybridge might be at least partitially stable at 5ghz because it can take up to 1.5v-1.6v with water cooling.

Obviously GPU decode is way more efficient and use 1/50th of the electricity as you've discovered. Setting to dx11 uses the hardware acclerated decode blocks.
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Old Today, 03:35   #65474  |  Link
huhn
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no it can't a 4060 has only 8 lanes there is not enough bandwidth.
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Old Today, 08:54   #65475  |  Link
AuRiMaS666
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Originally Posted by Sunspark View Post
Do other actively developed renderers experience these issues with Nvidia and newer Windows builds?
In my case it was very similar with MPC-VR during some brief comparison. After several minutes in, the OSD's frame time graph on the bottom jumps from stable line at around 25% level to ~75% and looks square shaped kinda like ECG. Of course this resulted in heavy stuttering very much like with madVR.
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling

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