[mythtv-users] PVR-350 on FC6 black screen on playback

[Ian Armstrong]

On Saturday 03 March 2007 20:48, Fred Firestine wrote:
> Hi everyone,
>
> Apologies if you have seen this on the ivtv list... After being a big
> fan of MythTV for months on Fedora Core 4, I decided it was time to
> upgrade to Fedora Core 6 (actually a fresh install). Most of my
> settings, database info, etc. have been migrated properly, and
> everything is working, except for watching recorded programs. When I
> press play, sometimes I see a flash of the program followed by a black
> screen, most of the time just a black screen. Audio is fine. I have
> been searching around for several days now, and this seems to be a
> common problem. The IVTV Howto recommends the following in
> /etc/modprobe.conf:
>
> options ivtv-fb osd_compat=1
>
> This does not work for me. Does anyone have any other suggestions?


> /var/log/messages output during playback:
>
> Mar  3 13:15:19 mythtv kernel: ivtv0: Stereo mode changed
> Mar  3 13:15:19 mythtv kernel: ivtv0-fb warning: ivtv_fb_prep_frame:
> Nothing to do. count = 0
> Mar  3 13:15:40 mythtv last message repeated 610 times
> Mar  3 13:15:40 mythtv kernel: ivtv0-fb warning:
> IVTVFB_IOCTL_GET_ACTIVE_BUFFER no longer supported
> Mar  3 13:15:40 mythtv kernel: ivtv0-fb warning:  - Please use
> FBIOGET_VSCREENINFO
> Mar  3 13:15:41 mythtv kernel: ivtv0-fb warning: ivtv_fb_prep_frame:
> Nothing to do. count = 0

The 'no longer supported' messages suggest the osd_compat option isn't being 
used. When the ivtv-fb module is loaded with osd_compat=1, you should see 
something like this in the output from dmesg.

ivtv0-fb: Running in compatibility mode. Display resize & mode change disabled

-- 
Ian