Devices > Video Cards, Monitors, Televisions, and Projectors

Slow-downs - BD playback [RO STD issues on underpowered hardware]

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ldoodle:

--- Quote from: JimH on February 02, 2014, 07:56:23 am ---Could we offer to turn them off on the first install?

--- End quote ---

Would it be better to try and work out what GPU is installed and configure MC/madVR to suit. I.e. we now know that for the ATI 5450 (mine is the 512MB version by the way), ROHQ on low settings in madVR is better than ROSTD.

Maybe you could detect the installed GPU and then make available different options based on hardware (as in only show ones that will work). If less than xxx only show ROSTD and if more than xxx only show ROHQ, but with different levels:

ROHQ Low Quality
ROHQ Medium Quality
ROHQ High Quality
ROHQ Super High Quality

To save manual configuration. It's only because I'm a tinkerer that I've persisted here, whereas countelss others would have moved on to other software.

The fact that ROHQ can be tweaked and more importantly show stats, would it make sense to completely remove ROSTD? The use can at least then see what's happening when using the various ROHQ quality levels and modify to suit..

Hendrik:
A database of GPUs to automatically select a performance profile is probably a bit too much (but who knows!), but I do hope we can provide better profiles in the future, so you don't have to go into the madVR configuration to select a ROHQ "Low" profile.

In theory RO STD should always just work, because it just lets the GPU handle all that, in practice however it can get screwed up by settings in the Graphics Control Panel in the OS, which is a really sad state for the vendors of the graphics card to produce such broken default settings.

If you're feeling adventurous, go into the "AMD Catalyst Control Center" (probably in the start menu somewhere), find the "Video" branch, and turn off all the settings in the various sub-menus of the Video branch (primarily in "Color" and "Quality"). Except for "Deinterlacing" in the Quality part, leave that on "Use automatic setting".
Then try RO STD again. If I'm right, it should work better now.

I'm also looking to expand my range of available test systems, may get a 5450 for a couple of bucks to test a real low-end card, and see if I can reproduce your troubles and do some magic to make it better.

ldoodle:
I'll give it a go tonight Hendrik and report back.

I came across this yesterday - http://www.anandtech.com/show/4263/amds-radeon-hd-6450-uvd3-meets-htpc/3 - which states

"the 6450 is now able to run all of AMD’s post-processing features at full speed—that is they all work with Enforce Smooth Video Playback enabled and without dropping any frames in the process".

which is saying the 5450 cannot, which is maybe the problem (for me). From recollection, 'Enforce Smooth Video Playback' is turned on by default - I'll check.

ldoodle:

--- Quote from: 6233638 on February 02, 2014, 01:09:03 pm ---It's not normal for the screensaver to show up if the video was playing. (rather than paused)
There is a "Disable display from turning off" option under Tools > Options > Audio which might fix this.

--- End quote ---

I have that set already, but I think it was because I had it in window-mode so I could monitor CPU usage at the time, rather than full-screen.

There is a setting for Theater View that disables the screen saver. Maybe that needs to be changed so when any view is playing any media (video, audio, images etc.), it disables the screen saver. Not just when in Theater View.

kstuart:
Just FYI:

I'm using the 240 X2 and it will decode blu-ray just fine without the GPU, so it should also be fine with your 250 X2, and so you should turn off hardware acceleration in order to take load away from the GPU.

However, I have a native 1080p display, so MC19 does not have to downscale for blu-ray.  But, when you play a blu-ray on your 768p display, it is always downscaling using the GPU.

That is why lowering the quality settings on madVR was working for you, and it does indicate that the 5450 is marginal, especially if your display is not 1080p.

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