2016-04-29, 21:32
SOLVED: The problem was apparently that the proprietary Nvidia drivers can only sync to one display. Even though I switched my desktop from my PC to my TV (leaving my PC monitor to go to standby), Nvidia still wanted to sync to the PC monitor. By turning off the PC monitor while using the TV, Nvidia immediately jumps to syncing with the TV, and not the PC monitor. I could even turn off the PC monitor in the middle of watching a movie on my TV, and the stuttering would go away.
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I experience symptoms similar to 3:2 pulldown judder (regular stutters every 1-2 seconds) with 23.976 content even though my refresh rate is 24Hz (yes, my TV switches to 24Hz when the video starts). The TV may be using 23.97x for all I know. If the TV is really using 24.000Hz then sure, it won't be perfectly smooth, but there shouldn't be regular stutters every 1-2 seconds.
This is only a problem in Linux, it works fine in Windows (I'm dualbooting).
I've tried to solve this, but I'm stuck and can't figure it out.
Relevant info:
Linux Mint 17.3
Nvidia GTX980Ti, proprietary drivers
"Adjust display refresh rate" on
"Sync playback to display" on (but makes no visible difference whether on or off)
Please let me know how I can proceed in order to debug and fix this problem. I'll happily provide any other helpful info.
Update: This actually seems to happen with other media players too (on Linux). If I manually set the refresh rate to 24Hz and play the video with another player, it stutters in the same way. Still, I'd be immensely grateful for any help in finding out what could be wrong.
Update: Logs and info
Linux log: http://pastebin.com/DP9rdiMK
Linux log Kodi 17 alpha: http://pastebin.com/FRGHkUum
Windows log: http://pastebin.com/cp3N2ngH
Mediainfo: http://pastebin.com/MkDj2RmD
DISPLAY=:0 /usr/lib/kodi/kodi-xrandr http://pastebin.com/uhMYfqjk (HDMI-0 is my TV)
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I experience symptoms similar to 3:2 pulldown judder (regular stutters every 1-2 seconds) with 23.976 content even though my refresh rate is 24Hz (yes, my TV switches to 24Hz when the video starts). The TV may be using 23.97x for all I know. If the TV is really using 24.000Hz then sure, it won't be perfectly smooth, but there shouldn't be regular stutters every 1-2 seconds.
This is only a problem in Linux, it works fine in Windows (I'm dualbooting).
I've tried to solve this, but I'm stuck and can't figure it out.
Relevant info:
Linux Mint 17.3
Nvidia GTX980Ti, proprietary drivers
"Adjust display refresh rate" on
"Sync playback to display" on (but makes no visible difference whether on or off)
Please let me know how I can proceed in order to debug and fix this problem. I'll happily provide any other helpful info.
Update: This actually seems to happen with other media players too (on Linux). If I manually set the refresh rate to 24Hz and play the video with another player, it stutters in the same way. Still, I'd be immensely grateful for any help in finding out what could be wrong.
Update: Logs and info
Linux log: http://pastebin.com/DP9rdiMK
Linux log Kodi 17 alpha: http://pastebin.com/FRGHkUum
Windows log: http://pastebin.com/cp3N2ngH
Mediainfo: http://pastebin.com/MkDj2RmD
DISPLAY=:0 /usr/lib/kodi/kodi-xrandr http://pastebin.com/uhMYfqjk (HDMI-0 is my TV)