Mailing List Archive: MythTV: Dev

Reset display when changing channels?

Index | Next | Previous | View Threaded

mike at nine-hells

May 22, 2008, 11:23 PM

Post #1 of 5 (2240 views)
Permalink

Reset display when changing channels?

Hi all,

Apologies if this is a stupid question. I have MythTV running with
an onboard ATI x1250 graphics chip. I get video distortion when a
channel change results in a change in source resolution. Eg: Changing
from SD to HD live TV. Or changing from HD (1440x1080) to HD
(1920x1080).

This distortion or corruption continues until I exit live TV and
then go back in (so the starting channel has changed to the channel I
wish to view) or from live TV I go into the guide and back out again.

I can only assume that when exiting the guide, some function is
called to re-initialise the playback rendering? I would like to
tinker with the source to try to eradicate the issue (for me at
least), by doing a similar re-initialisation when changing channels
results in a source resolution change.

Can anyone on the list give me a helping hand on exactly where to
start and what to look for? I have perused the source but am feeling
a little overwhelmed. :)

Regards,

Mike
_______________________________________________
mythtv-dev mailing list
mythtv-dev [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev

stuart at tase

May 22, 2008, 11:45 PM

Post #2 of 5 (2137 views)
Permalink

Re: Reset display when changing channels? [In reply to]

mike at nine-hells

May 23, 2008, 5:45 AM

Post #3 of 5 (2125 views)
Permalink

Re: Reset display when changing channels? [In reply to]

Quoting:
>
> Which driver are you using?
>
> Have you tried the latest Catalyst driver, 8.5?
> --
> Stuart Morgan

Hi Stuart,

Yes, this is the case with both the version 8.4 and 8.5 fglrx drivers.

Mike
_______________________________________________
mythtv-dev mailing list
mythtv-dev [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev

stuart at tase

May 24, 2008, 2:42 PM

Post #4 of 5 (2072 views)
Permalink

Re: Reset display when changing channels? [In reply to]

On Friday 23 May 2008 07:23:33 Mike Patton wrote:
> Hi all,
>
> Apologies if this is a stupid question. I have MythTV running with
> an onboard ATI x1250 graphics chip. I get video distortion when a
> channel change results in a change in source resolution. Eg: Changing
> from SD to HD live TV. Or changing from HD (1440x1080) to HD
> (1920x1080).
>
> This distortion or corruption continues until I exit live TV and
> then go back in (so the starting channel has changed to the channel I
> wish to view) or from live TV I go into the guide and back out again.

Ok, I can reproduce this on my Ati x1250 frontend, I didn't notice it until I
started browsing the satellite channels in livetv since they seem to change
resolution more than the terrestrial ones.

I'll submit a bug report to ATi and you might want to do the same, look at the
changelog for instructions. Meanwhile someone might suggest a short term fix
which can be used in MythTV.
--
Stuart Morgan
_______________________________________________
mythtv-dev mailing list
mythtv-dev [at] mythtv
http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev

eduardhc at gmail

Nov 4, 2008, 4:08 AM

Post #5 of 5 (1292 views)
Permalink

Re: Reset display when changing channels? [In reply to]

Sorry to bring back this question again, but this is really the only
reference I've found regarding this problem. I'm experiencing the very same
problem with my ATI X1250 (MythTV 0.20), and I'd like to know what's the
status on this. Could you confirm if this issue has been solved any way in
MythTV side?

I'd like to know if i.e. this issue has been solved in 0.21 by doing some
trick.

Regards,
Eduard

> On Friday 23 May 2008 07:23:33 Mike Patton wrote:
> > Hi all,
> >
> > Apologies if this is a stupid question. I have MythTV running with
> > an onboard ATI *x1250* graphics chip. I get video distortion when a
> > channel change results in a change in source resolution. Eg: Changing
> > from SD to HD live TV. Or changing from HD (1440x1080) to HD
> > (1920x1080).
> >
> > This distortion or corruption continues until I exit live TV and
> > then go back in (so the starting channel has changed to the channel I
> > wish to view) or from live TV I go into the guide and back out again.
>
> Ok, I can reproduce this on my Ati *x1250* frontend, I didn't notice it
> until I
> started browsing the satellite channels in livetv since they seem to change
>
> resolution more than the terrestrial ones.
>
> I'll submit a bug report to ATi and you might want to do the same, look at
> the
> changelog for instructions. Meanwhile someone might suggest a short term
> fix
> which can be used in MythTV.
> --
> Stuart Morgan

Index | Next | Previous | View Threaded

Interested in having your list archived? Contact Gossamer Threads