LG WebOS TV volume buttons don't have effect on device in 2026.6.0b0

[luca-angemi]

The problem

When pressing the + or - button in the new feature the volume on tv doesn't change.
The mute button correctly mutes and unmutes the TV.

What version of Home Assistant Core has the issue?

2026.6.0b0

What was the last working version of Home Assistant Core?

No response

What type of installation are you running?

Home Assistant OS

Integration causing the issue

webostv

Link to integration documentation on our website

https://www.home-assistant.io/integrations/webostv

Diagnostics information

No response

Example YAML snippet

Anything in the logs that might be useful for us?

Additional information

No response

[home-assistant]

Hey there @thecode, mind taking a look at this issue as it has been labeled with an integration (webostv) you are listed as a code owner for? Thanks!

Code owner commands

Code owners of webostv can trigger bot actions by commenting:

• @home-assistant close Closes the issue.
• @home-assistant rename Awesome new title Renames the issue.
• @home-assistant reopen Reopen the issue.
• @home-assistant unassign webostv Removes the current integration label and assignees on the issue, add the integration domain after the command.
• @home-assistant add-label needs-more-information Add a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) to the issue.
• @home-assistant remove-label needs-more-information Remove a label (needs-more-information, problem in dependency, problem in custom component, problem in config, problem in device, feature-request) on the issue.

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@luca-angemi Thanks for reporting this issue!

Before we dive in, please make sure this isn't a duplicate by searching through existing issues. Also check recently closed issues, as your problem might already be fixed but not yet released.

https://github.com/home-assistant/core/issues?q=%20label%3A%22integration%3A%20webostv%22%20
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webostv documentation
webostv source
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[luca-angemi]

Definitely a core issue. Doesn't work neither with the slider with the more info window with both tile and media player cards.