BBS:      TELESC.NET.BR
Assunto:  A/V problems while the Pi is doing nothing
De:       Jim Diamond
Data:     Sun, 15 Mar 2026 13:30:02 +1100
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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.

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.
(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).

Anyone?

                                Jim

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

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