https://bugs.freedesktop.org/show_bug.cgi?id=76564
--- Comment #49 from Christian König deathsimple@vodafone.de --- (In reply to comment #48)
Created attachment 96792 [details] logs working and not
This patch appears to have broken my 24P playback which has been fine until now. My set is a Sony KDL 40NX711 NTSC set, A4-3400 - HDMI to set for vid/audio stereo out speakers/no avr. Using Openelec- gotham nightlies (this patch is now comitted to OE-nightlies): Playing 29.97 plays fine enough (a few skips- why I am testing this patch), 23.976 playback breaks the TV display- it starts to buzz then says "no signal", I press stop and the menu/screen resumes at ~30P like normal. I am attaching dmesg/xorg logs drm.debug=0xe both working w/o patch and broken w/patch. let me know if you need more.
Are you sure you're logs are valid? Cause both a single mode switch shortly after boot:
bad/dmesg_24pbroken.log:[ 11.148315] [drm:radeon_compute_pll_avivo], 297000 - 29700, pll dividers - fb: 29.7 ref: 2, post 5
good/dmesg_24pOK.log:[ 11.400765] [drm:radeon_compute_pll_avivo], 29700, pll dividers - fb: 29.7 ref: 2, post 5
You might try to ssh into the box and change the modes using xrandr directly.