[mythtv-users] hdpvr latest firmware color saturation issue question

Mitch Capper mitch.capper at gmail.com
Sun Jul 22 04:35:54 UTC 2012

Two reasons it may not work from the script are if the path does not
include v4l2-ctl (try using the abs path to it) or if its because you
are changing the channel right before using it maybe its busy.  Try
using it before changing the channel.


On Sat, Jul 21, 2012 at 9:11 PM, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> On Sat, Jul 21, 2012 at 11:39 PM, John P Poet <jppoet at gmail.com> wrote:
>> On Sat, Jul 21, 2012 at 9:15 PM, Steven Adeff <adeffs.mythtv at gmail.com>
>> wrote:
>>> so I've updated my system and am using the latest hdpvr firmware. I
>>> have the color saturation issue, but placing
>>> v4l2-ctl --verbose -d /dev/video1 --set-ctrl brightness=0x80
>>> --set-ctrl contrast=0x40 --set-ctrl hue=0xf --set-ctrl saturation=0x40
>>> --set-ctrl sharpness=0x80
>>> at the end of the channel change script does not fix the problem, I
>>> have to run it again, manually, from an ssh session.
>>> is this the way it is supposed to be or did I miss something in how I set
>>> it up?
>> It is on my To Do list to add "picture control" support for the HD-PVR in
>> Myth.  I just haven't had time to do any development in a while.  Part of
>> the problem, is that my HD-PVRs are often busy when I do think about playing
>> with it.  I may be able to work on it tomorrow -- if not, it will have to be
>> after the Olympics.
>> John
> gotcha!
> yea, it would be good if Myth could run the fix so the user doesn't
> have to. apparently there's a fix for the linux driver but some hiccup
> in the patch approval system is causing it to not go through.
> I updated further info on my issue in the other thread on the hdpvr patches...
> --
> Steve
> http://www.mythtv.org/wiki/User:Steveadeff
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