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Old 11-06-10, 09:17 AM   #13
cehoyos
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Join Date: Jan 2009
Location: Vienna, Austria
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Default Re: Your system is too SLOW to play this!

Quote:
Originally Posted by thecapsaicinkid View Post
Just tried the 'killa birds sampler' h.264 and that runs fine at 1080p 50fps (supposedly 100mbps+)
My (mkv-) sample is nearly 23 seconds long and contains 550 frames, so 24fps seems more likely (and that is what both FFmpeg and MPlayer's native demuxer report).

Carl Eugen
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Old 11-07-10, 03:24 PM   #14
thecapsaicinkid
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Default Re: Your system is too SLOW to play this!

So if I need to disable VSync or enable frame dropping for 60fps video on a 60Hz display to avoid the 'System too slow' message, surely that means my machine is not powerful enough to render 640x480 video @ 60fps?

Lots of google results indicate high Xorg cpu usage and poor performance could be related to modelines. I've noticed also I have 2 60Hz modes in nvidia-settings 1080_60 and 1080_60_0. The second one will ALWAYS give me slow video regardless if vsync is off or not.
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Old 11-07-10, 06:07 PM   #15
cehoyos
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Default Re: Your system is too SLOW to play this!

Quote:
Originally Posted by thecapsaicinkid View Post
So if I need to disable VSync or enable frame dropping for 60fps video on a 60Hz display to avoid the 'System too slow' message, surely that means my machine is not powerful enough to render 640x480 video @ 60fps?
No, it is definitely powerful enough.

MPlayer svn does not support playing back videos with fps == Hz (well), there are at least one fork and one patch that try to improve this, iirc.

Carl Eugen
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Old 11-08-10, 06:49 AM   #16
thecapsaicinkid
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Default Re: Your system is too SLOW to play this!

Thanks for your help, I didn't think it was a performance issue.
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Old 11-09-10, 03:36 AM   #17
thecapsaicinkid
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Default Re: Your system is too SLOW to play this!

Well, with a little more digging, it seems with the 'gpu scaling' option enable the nvidia driver is scaling all output to 1080p50.

Took me a while to notice this as my tv doesn't physically display the current refresh.

First set the DynamicTwinView option to false in xorg.conf so xrandr stops printing 'fake' refresh values (50, 51, 52, 53..)

Code:
xrandr -r 60 
nvidia-settings -q RefreshRate | grep -o "[0-9][0-9].*Hz"
Would report 50.0Hz

This seems like a bug to me, the driver seems to be scaling to my 'nvidia-auto-select' mode (1920x1080_50) regardless of what the current refresh is. Hardware scaling seems to be enabled by default so I can see most people with PAL screens will just lose the ability to use 60Hz output at all.

My mode pool

Code:
 --- Modes in ModePool for SONY TV (DFP-0) ---
 "nvidia-auto-select" : 1920 x 1080 @  50.0 Hz  (from: EDID)
 "1920x1080"          : 1920 x 1080 @  50.0 Hz  (from: EDID)
 "1920x1080_50"       : 1920 x 1080 @  50.0 Hz  (from: EDID)
 "1920x1080_60"       : 1920 x 1080 @ 59.94/60 Hz (CEA-861B Format 16) (from: EDID)
 "1920x1080_60i"      : 1920 x 1080 @  60.1 Hz Interlace  (from: EDID)
 "1920x1080_60i_0"    : 1920 x 1080 @ 59.94/60 Hz (CEA-861B Format 5) (from: EDID)
 "1920x1080_50i"      : 1920 x 1080 @ 50 Hz Interlace (CEA-861B Format 20) (from: EDID)
 "1280x720"           : 1280 x  720 @  60.0 Hz  (from: EDID)
 "1280x720_60"        : 1280 x  720 @  60.0 Hz  (from: EDID)
 "1280x720_60_0"      : 1280 x  720 @ 59.94/60 Hz (CEA-861B Format 4) (from: EDID)
 "1280x720_50"        : 1280 x  720 @  50.0 Hz  (from: EDID)
 "720x576"            :  720 x  576 @  50.0 Hz  (from: EDID)
 "720x576_50"         :  720 x  576 @  50.0 Hz  (from: EDID)
 "720x576_50i"        : (1440)x 576 @ 50 Hz Interlace (CEA-861B Format 22) (from: EDID)
 "720x480"            :  720 x  480 @  59.9 Hz  (from: EDID)
 "720x480_60"         :  720 x  480 @  59.9 Hz  (from: EDID)
 "720x480_60i"        : (1440)x 480 @ 59.94/60 Hz Interlace (CEA-861B Format 7) (from: EDID)
 "640x480"            :  640 x  480 @ 59.94/60 Hz Interlace (CEA-861B Format 1) (from: EDID)
 "640x480_60"         :  640 x  480 @ 59.94/60 Hz Interlace (CEA-861B Format 1) (from: EDID)
 --- End of ModePool for SONY TV (DFP-0): ---
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