[mythtv-users] no osd after upgrade to cvs

mielikki-ivtv mielikki-ivtv at westbrook.com
Thu Dec 23 17:17:14 UTC 2004

Peter Lee wrote:
> On Sat, 18 Dec 2004 13:22:48 -0500, mielikki-ivtv
> <mielikki-ivtv at westbrook.com> wrote:
>>Peter Lee wrote:
>>>The upgrade went smoothly, except for one thing: The OSD is not
>>I had a similar problem with the OSD and it turned out to be a
>>permission problem. I do a
>>   chmod a+rw /dev/fb/2
> Thanks for the tip, but forgive my ignorance:  I don't know what
> /dev/fb/2 is!  I have /dev/fb which is a link to /dev/fb0.  I thought
> that /dev/fb0 was my framebuffer device.  Am I wrong about that?  At
> any rate, I did a chmod a+rw on /dev/fb0, but this did not have any
> effect on the osd.

In my system log file, after the END IVTV, ivtv-osd tells me which the 
frame buffer device is:

   ivtv: ====================  END INIT IVTV  ====================
   ivtv-osd: Framebuffer module loaded (attached to ivtv card id 0)
   ivtv-osd: Framebuffer is at decoder-relative address 0x00510000 and 
has 1704960 bytes.
   ivtv-osd: screen coords: [0 0] -> [720 480]
   ivtv-osd: original global alpha = 208
   ivtv-osd: current OSD state = 39
   ivtv-osd: new global alpha = 208 (1 255 0)
   ivtv-osd: framebuffer at 0xed510000, mapped to 0xea061000, size 1350k
   ivtv-osd: mode is 720x480x32, linelength=2880
   ivtv-osd: fb2: iTVC15 TV out frame buffer device

My /dev/fb2 is a symbolic link to /dev/fb/2 so the permissions on 
/dev/fb/2 are the important ones for me. Your kernel might set things up 

> Anyway, I am stumped on this.  Do I need a more recent ivtv?  I am
> currently running ivtv-0.1.10-47_pre2_ck100zz.rhfc2.at.

I'm using the 2.0 drivers. Don't know if that makes a difference.

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