[mythtv-users] HD-PVR recordings oversaturated
jerrymr at gmail.com
Mon Aug 29 04:56:56 UTC 2011
On Sat, Aug 27, 2011 at 12:28 AM, Jerry Rubinow <jerrymr at gmail.com> wrote:
> On Fri, Aug 26, 2011 at 11:28 PM, Jerry Rubinow <jerrymr at gmail.com> wrote:
>> I just upgraded the firmware on my HD-PVR from version 0x12 May 7, 2009 to
>> the latest from the Hauppauge web site, 0x17 July 27, 2011. Now all
>> recordings from the HD-PVR are way oversaturated. Catting /dev/video0 and
>> playing the file with vlc yields the same result. According to v4l2-ctl -l,
>> the settings are all at defaults. Any ideas what the problem could be?
>> Kern.log says "untested firmware, the driver might not work". That's a
>> little scary. Any way to obtain and install a previous firmware version?
> I tried adjusting the brightness and contrast in the channel change script,
> /usr/bin/v4l2-ctl --device=/dev/video0 --set-ctrl=brightness=100
> But it seems to have no effect. I can use the same command during a
> recording from the command line and see it effect the brightness. It
> appears that when the recording starts, these HD-PVR settings get reset to
> I'm running 0.24.1-fixes, btw.
And a 2.6.38-10 kernel.
It seems like Myth must be setting the hd-pvr to a default state after
running the channel change script. Or for some reason the v4l2-ctl lines
aren't having an effect when run inside the script. Is there any other
point when a recording starts, besides the channel change script, to run a
script? If so, and if there is another script point, at least I could have
a workaround to adjust the picture adequately until I found a real fix.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the mythtv-users