[GH-ISSUE #210] Doesnt work on LG TV #158

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opened 2026-05-05 05:18:02 -06:00 by gitea-mirror · 2 comments

gitea-mirror commented

2026-05-05 05:18:02 -06:00

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Originally created by @jasontucker on GitHub (Apr 30, 2020).
Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/210

Using a USB-C to HDMI connector to connect to my LG UHD TV I'm unable to change the brightness or volume.

Quick stats from System Information:

Radeon Pro 555:

Chipset Model: Radeon Pro 555
Type: GPU
Bus: PCIe
PCIe Lane Width: x8
VRAM (Total): 2 GB
Vendor: AMD (0x1002)
Device ID: 0x67ef
Revision ID: 0x00c7
ROM Revision: 113-C980AJ-927
VBIOS Version: 113-C9801AP-A02
EFI Driver Version: 01.A0.927
Automatic Graphics Switching: Supported
gMux Version: 4.0.29 [3.2.8]
Metal: Supported, feature set macOS GPUFamily2 v1
Displays:

Color LCD:
Display Type: Built-In Retina LCD
Resolution: 2880 x 1800 Retina
Framebuffer Depth: 30-Bit Color (ARGB2101010)
Main Display: Yes
Mirror: Off
Online: Yes
Automatically Adjust Brightness: No
Connection Type: Internal

LG TV:
Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition)
UI Looks like: 3840 x 2160 @ 30 Hz
Framebuffer Depth: 30-Bit Color (ARGB2101010)
Mirror: Off
Online: Yes
Rotation: Supported
Automatically Adjust Brightness: No
Connection Type: HDMI
Adapter Firmware Version: 7.55
Television: Yes

Originally created by @jasontucker on GitHub (Apr 30, 2020). Original GitHub issue: https://github.com/MonitorControl/MonitorControl/issues/210 Using a USB-C to HDMI connector to connect to my LG UHD TV I'm unable to change the brightness or volume. <img width="689" alt="Screen Shot 2020-04-30 at 12 37 59 PM" src="https://user-images.githubusercontent.com/108426/80751877-709e8b00-8adf-11ea-9aa0-2b30554c5736.png"> <img width="643" alt="Screen Shot 2020-04-30 at 12 38 22 PM" src="https://user-images.githubusercontent.com/108426/80751901-7c8a4d00-8adf-11ea-86df-728f8bfedca5.png"> <img width="248" alt="Screen Shot 2020-04-30 at 12 37 35 PM" src="https://user-images.githubusercontent.com/108426/80751844-5fee1500-8adf-11ea-9e28-22d6302fd432.png"> Quick stats from System Information: Radeon Pro 555: Chipset Model: Radeon Pro 555 Type: GPU Bus: PCIe PCIe Lane Width: x8 VRAM (Total): 2 GB Vendor: AMD (0x1002) Device ID: 0x67ef Revision ID: 0x00c7 ROM Revision: 113-C980AJ-927 VBIOS Version: 113-C9801AP-A02 EFI Driver Version: 01.A0.927 Automatic Graphics Switching: Supported gMux Version: 4.0.29 [3.2.8] Metal: Supported, feature set macOS GPUFamily2 v1 Displays: Color LCD: Display Type: Built-In Retina LCD Resolution: 2880 x 1800 Retina Framebuffer Depth: 30-Bit Color (ARGB2101010) Main Display: Yes Mirror: Off Online: Yes Automatically Adjust Brightness: No Connection Type: Internal LG TV: Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition) UI Looks like: 3840 x 2160 @ 30 Hz Framebuffer Depth: 30-Bit Color (ARGB2101010) Mirror: Off Online: Yes Rotation: Supported Automatically Adjust Brightness: No Connection Type: HDMI Adapter Firmware Version: 7.55 Television: Yes

gitea-mirror

2026-05-05 05:18:02 -06:00

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gitea-mirror commented

2026-05-05 05:18:08 -06:00

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@JoniVR commented on GitHub (May 12, 2020):

Hi, we have a Monitor Troubleshooting wiki for this:
https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting

This might be a good place to look first 🙂

@JoniVR commented on GitHub (May 12, 2020): Hi, we have a Monitor Troubleshooting wiki for this: https://github.com/the0neyouseek/MonitorControl/wiki/Monitor-Troubleshooting This might be a good place to look first 🙂

gitea-mirror commented

2026-05-05 05:18:11 -06:00

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@stale[bot] commented on GitHub (Aug 3, 2021):

Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require attention? This issue may be closed if no further activity occurs. Thank you for your contributions.

@stale[bot] commented on GitHub (Aug 3, 2021): Hey there, it looks like there has been no activity on this issue recently. Has the issue been fixed, or does it still require attention? This issue may be closed if no further activity occurs. Thank you for your contributions.