BBS:      TELESC.NET.BR
Assunto:  Re: A/V problems while the Pi is doing nothing
De:       Jim Diamond
Data:     Mon, 16 Mar 2026 10:00:02 +1100
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On 2026-03-15 at 07:53 ADT, Andy Burns  wrote:
> Jim Diamond wrote:

>> I have a RPi5 hooked up to a TV, and I watch movies or TV programs or what
>> have you by streaming them on the Pi and sending them to the TV via HDMI.

>> I assume this is something that most of you have done at some point.

> yes with xbmc/kodi

>> I turn the TV off (really it goes into its low power mode) and leave the
>> RPi on.

>> Occasionally, when I turn the TV on to watch something, there are two
>> things wrong:
>> (1) The video no longer matches the TV screen size (1920x1080 in this case).
>> The video is slightly larger, in that the edges of the picture are
>> off-screen.

> sounds like the TV is selecting overscan mode, does its remote have an
> aspect ratio button, there's usually an option for "exact scan" or "pc
> mode"

Nope, nothing "fancy" on the remote like that.  For better or worse.

Thanks for the thought.

                                Jim


>> (2) The sound is no longer coming through the HDMI (or, at least, the TV
>> remains silent).

>> I can get things working again by running the command
>> xrandr --size 800x600  ;  sleep 1 ; xrandr --size 1920x1080
>> (I have no idea why this gets the sound working.)

>> Having a work-around is fine, but I'm wondering if anyone else has seen
>> this issue.  I don't know whether it is
>> -> a Pi hardware issue
>> -> a Pi software issue, or
>> -> a glitch in my TV (Sony Bravia, FWIW).


--- PyGate Linux v1.5.13
 * Origin: Dragon's Lair, PyGate NNTP<>Fido Gate (3:633/10)

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