On Tuesday 20 September 2005 20:02, Jan Ophey wrote:
> Hallo Hans, Hallo everybody else!
>
> Hans, as you mentioned, I did some further testing on my PVR350 picture
> problem.
> I testet all the .3.7 and the .3.8 release.
> I always did a cold reboot between driver-updates and unplugged powercord
> to make sure the capacitators are empty.
>
> My results are:
> .3.6?? -> Picture OK
> upgraded to 0.3.8 --> picture bad (see
> http://orpheus.ram.rwth-aachen.de/test.mpg for example; again I have to
> say: I have strict trafficlimit at university, so please do not download
> for fun. thx! ;) )
> also 0.3.8 gives error messages in dmesg:
>
> Sep 20 18:51:52 mythbox saa7115: decoder set picture bright=1 contrast=63
> saturation=-153598336 hue=-536905984
> Sep 20 18:51:52 mythbox saa7115: invalid saturation setting
> -153598336<6>saa7115: decoder set picture bright=1 contrast=-1069805324
> saturation=63 hue=-536905984
> Sep 20 18:51:52 mythbox saa7115: invalid contrast setting
> -1069805324<6>saa7115: decoder set picture bright=127 contrast=-1069805324
> saturation=-153598336 hue=-536905984
> Sep 20 18:51:52 mythbox saa7115: invalid contrast setting
> -1069805324<6>saa7115: decoder set picture bright=1 contrast=-1069805324
> saturation=-153598336 hue=0
> Sep 20 18:51:52 mythbox saa7115: invalid contrast setting
> -1069805324<6>saa7115: decoder disable output
> Sep 20 18:51:52 mythbox saa7115: decoder enable output
>
> these messages result in the above mentioned picture.
>
>
> what I did then:
> install 0.3.7k --> same effect
> install 0.3.7a --> everything OK
> install 0.3.7b-f --> everything OK
> install 0.3.7g --> the picture was much to dark, but I am able to restore
> a good picture using mythtv's picture-controls (g-key in Live-TV). As you
> cycle through the different settings, picture flickers between normal and
> dark, giving similar messages in dmesg, but with varying settings for
> contrast,hue,brightness and saturation. If I change channels i have to
> reset the settings again (e.g.: set brightness from 50% --> 51% -->50%).
> To me it seems as if mythtv or the ivtv-driver itself randomly changes the
> settings for those items, which I did not change in myth. So if I cycle
> through all settings doing the 50->51->50-thing, this results in the
> flicker described above. Also each time I change such a setting, dmesg
> gives similar messages as the ones above-
> install 0.3.7h-j --> same effects as 0.3.7g
> install 0.3.7k --> bright picture, same as 0.3.8, see URL above for
> sample-mpg-file. Also with this driver-versions I cannot make the picture
> look goog by changing settings for contrast, hue, brightness and
> saturation.
> I also played around with the picture-controls via ivtvctl, but they don't
> change anything either. In dmesg those tries give messages about changing
> the correct setting, directly followed by a change-back to the invalid
> setting. Playing /dev/video0 with myplayer doesn't show any noticable
> flicker while changing settings with ivtvctl manually and resetting to the
> invalid settings.
>
> So... long mail, but this is all information I could gather.
> Hope it gives you a clue on what problem(s) I'm facing.
OK, next set of questions: do you also get the picture messages in version
0.3.7f? In 0.3.7g do you get the same too dark picture if you just run
cat /dev/video0 >/test.mpg? (trying to eliminate MythTV from the equation).
Thanks,
Hans
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