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October 27th, 2022 19:00
S2522HG, causing gaming screen flickering?
Hi everyone,
I have no idea if this issue is related to my Lenovo Legion 5 Pro GPU, S2522HG cable or the S2522HG itself so I am posting this everywhere it might be relevant.
My S2522HG is set up at 240Hz and sometimes during gaming (no matter the game), the images start to flicker aggressively while the screen goes off and on for several times.
It happens until the S2522HG disconnects for some seconds and when it turns on again, the max refresh rate is now at 144Hz. It is 144Hz instead of 240Hz in all settings (both in Windows advanced display settings and Nvidia control panel). Everywhere it shows 144Hz.
To reset the S2522HG so it could show again 240Hz, all I need to do is just turn off and on it again. After that, 240Hz option appears again. Also, the glitches seem to be gone for a period after that.
The warranties for my S2522HG and Lenovo Legion 5 Pro are still active and I want to know which one is causing this problem. The cable I am using is a DisplayPort one that 100% supports 240Hz refresh rate for my resolutions.
I uploaded two videos recorded by my iPhone that show this strange behavior. In case you cannot access the links, I also uploaded two images from the video as well.
https://www.dropbox.com/s/n1dzcn34ihpsza8/Video%2028.07.2022%2C%2003%2033%2052.mov?dl=0
https://www.dropbox.com/s/1hd9m02gk9oxpbr/Video%2028.10.2022%2C%2003%2024%2054.mov?dl=0
Images:
https://www.dropbox.com/s/8njxedhti4tnavt/Screenshot_1.png?dl=0
https://www.dropbox.com/s/zwz432nqlm8007s/Screenshot_2.png?dl=0
My specs:
Laptop - Lenovo Legion 5 Pro / RTX 3070 / Intel i7-11800H / 32GB RAM / 1TB SSD
Monitor - Dell S2522HG 24" AMD FreeSync Pro/G-Sync compatible
Cable - DisplayPort to USB-C v1.2
DELL-Chris M
Community Manager
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October 28th, 2022 06:00
I would not be trying to run any external monitor at 240Hz from a laptop using battery only. So if you are running on battery only, connect the provided Laptop external AC power adapter to the Laptop and retest.
* Open the online S2522HG User's Guide
* Go to pages 59/60
- Do you see the issue when running the "no video cable connected" Self-test?
- Reconnect the video cable to the S2522HG. Do you see the issue when running the Built-in diagnostics?
Test this and tell us what Hz is available and if the same issue happens when gaming =
Lenovo Legion 5 Pro HDMI 2.1 out port --> S2522HG HDMI 2.0 cable --> S2522HG #1 HDMI 2.0 in port
Lenovo Legion 5 Pro HDMI 2.1 out port --> S2522HG HDMI 2.0 cable --> S2522HG #2 HDMI 2.0 in port
Aalkatraz
1 Rookie
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2 Posts
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October 28th, 2022 09:00
The laptop has never run without being connected to the AC power when connected to the monitor.
- Did the self test. Turned off both the monitor and laptop. Disconnected every cable from laptop then turned on the monitor. It said no "DP signal", then "going into standby mode" and immediately turned black while blue bottom LED turned off as well. No 4 minute timer has appeared.
- Did the joystick diagnostic and the monitor showed all the colors in the order and no missing spots or glitches were present.
- Connected to the first HDMI port. The 240hz was available both on the desktop and in gaming. No glitches occurred during gaming.
- Connected to the second HDMI port. The exact same story as on first port.
No glitches happened during the tests. But I have to mention that they don't happen often even on the display port cable. They happen very rarely, but when they do, they are quite severe. I bought both the monitor and the laptop in February and in 9 months I experienced at least 3-5 such abnormalities with all of them starting during gaming and occurring for up to half an hour.
As I said, the only clue I have is that after the monitor goes black during the glitch (see the second video), it shows only a maximum of 144hz refresh rate when it goes on again. While on 144hz, the glitch stops to happen. It is willing to perform again at 240hz only when I turn the monitor off and on.
The laptop's native display has 165hz and maybe it is no coincidence that after the glitch, it switches to 144hz and no below (120hz or 60hz). 144hz is the second refresh rate that comes below 165hz so maybe it is a conflict between the laptop's GPU software protocols and the external monitor that has a bigger refresh rate of 240hz. I have also to mention that during hundreds of work hours on the desktop and other programs (at 240hz as well), the glitch has never occurred.
The issue is not bothering me so much because it appears rarely and disappears quickly. I'm just afraid it is the sign of some issue that can get worse and I'm not even sure what is the cause.