Hi, I just got the LG 45GX950 and I have issues with DisplayPort and HDMI specific to this monitor. I did not have issues on my previous dual-monitor setup (hd@60hz via HDMI + 2k@144hz via DP) Specs: Monitor: LG 45GX950 ( LG UltraGear™ 45" OLED Dual-Mode 5K2K Gaming Monitor | LG DE | LG DE ) Syste…

HDMI Issue is the same as described here Flickering, graphics corruption, and loss of signal with Nvidia 4090 and 5K2K screen (LG 45GX950A-B.AUS)

Driver 580 has released today with some fixes around things like HDMI. Are you able to test if this resolved the issues?

I use linux mint and the driver manager does not provide the 580 yet. I’ll let you know once I installed and tested it.

I have a 5090 and LG 45GX950 and I can’t get 5k2k @ 165Hz going on driver 580.

Still no 165hz with the LG 45GX950 on Linux Mint 22.2 (Kernel 6.8.0-90-generic) with Driver Version 580.95.05

I installed 590.48.01 and I can at least now set the Monitor 5120x2180@165 via HDMI. This was previously impossible. I do get the Artifacts I face with using DP now. (see video Flickering, graphics corruption, and loss of signal with Nvidia 4090 and 5K2K screen (LG 45GX950A-B.AUS) - #30 by YetAnothe…

RTX4080 + LG 45GX950: Artifacts with DP + 165hz not working with HDMI 2.1

Graphics / Linux Linux

YetAnotherUsername May 19, 2025, 3:06pm 3

Adding bug-report
nvidia-bug-report.log.gz (466.5 KB)

Topic		Replies	Views
Flickering, graphics corruption, and loss of signal with Nvidia 4090 and 5K2K screen (LG 45GX950A-B.AUS) Linux	28	2713	March 29, 2026
Severe Artifacting/Static on 4K 240Hz HDMI Monitor (LG Ultragear+) with RTX 3090ti Linux	0	633	May 15, 2025
4k monitor works @60Hz on Windows; only 30Hz on Linux Linux	6	8981	October 12, 2021
[SOLVED] 550.54 & 550.67 break 120hz on LG C2 TV Monitors; 545.29 is last working version Linux	16	3577	June 24, 2024
HDMI display not detected on 510.54 with GTX 1080 Linux	5	610	April 17, 2022
System crash when connecting LG 120 Hz TV via HDMI on NVIDIA driver versions after 580.82.09-1 Linux hdmi , linux , laptop , linux-driver-solutions , linux-driver	5	353	December 22, 2025
Ubuntu 22.04 RTX 3080 LHR nvidia driver 525.60.13 cannot set correct resolution Linux	6	815	January 16, 2023
DisplayPort DSC 4K@240Hz flickering artifacts Linux	71	7311	March 12, 2026
Nvida GTX 550 doesn't detect my external monitor via HDMI in Ubuntu 22.04 LTS Linux	9	1764	December 2, 2022
No HDMI output on Nobara Linux 42, from Lenovo Legion 7i w/ RTX 3080 Linux hdmi , wayland , driver , linux-driver	37	2225	April 3, 2026

RTX4080 + LG 45GX950: Artifacts with DP + 165hz not working with HDMI 2.1

Related topics