LG Standard 2 HVAC unit - can't handle display brightness

[KrzysztofHajdamowicz]

Describe the bug
Device has ability to control display brightness (on/off) via remote pilot.
Switch entity is exposed via this integration in Home Assistant.
Changing switch state doesn't change display brightness.

Expected behavior
Changing switch state in HA, changes display brightness.

Screenshots

Environment details:

• Environment (HASSIO, Raspbian, etc): HASSOS
• Home Assistant version installed: 2023.3.6
• Component version installed: 0.31.4
• Last know working version: N/A
• LG device type and model with issue: HVAC unit LG Standard 2, 2,5 and 3,5kW variants
• LG devices connected (list): 3x LG Standard 2

Output of HA logs
Paste the relavant output of the HA log here.

1. ('Display light' is on, while backlight was disabled via remote)
   lg-standard2-display-brightness-disabled-via-remote.txt
2. Then enabled display via remote
   lg-standard2-display-brightness-enabled-via-remote.txt
   ('Display light' switch changed it's state to off. Inversion required?)
3. Then disabled display via remote again
   lg-standard2-display-brightness-disabled-via-remote-again.txt
   ('Display light' changed its state to 'on'. Definetely inversion is required)
4. Enabled backlight via turning HA switch off
   lg-standard2-display-brightness-enabled-by-ha.txt
   Device beeped, display remain unlit
5. Repeat step 4.
   lg-standard2-display-brightness-enabled-by-ha-again.txt
   (Device beeped, display is still dark)

[github-actions]

This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[erkr]

I have the same issue. We have 3 units. The display light entity is created for all 3 units. On the LG remote the light button works fine for all these 3 units.
The entity display switch in HA only works for the unit of model type AP09RK. But not for the slightly older model PC09ST.
When I toggle the display switch, the units make a beep which should indicate it is a supported command, but nothing happens.
I can provide more info, but please indicate what is needed.
Best Eric

[vincentwolsink]

I also have issues with S09ET and S12ET (RAC_056905_WW-RAC) airco's. The display light button is present for both ACs. When toggling the button the ACs do make a beep sound, but nothing happens.

[github-actions]

This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[KrzysztofHajdamowicz]

Bump

[github-actions]

This issue is stale because it has been open 45 days with no activity. Remove stale label or comment or this will be closed in 7 days.

[erkr]

Still hoping ☺️

[ollo69]

This point was discussed on issue #475. Probably API to control the light does not exists, considering that is also not controllable from LG app but only from remote control (that use infrared and not Api).
I close this issue, refer to #475.

[erkr]

Fair! Thanks for all the efforts🥳