Monitor loads with desktop and after a short time, blinks off then on/ There is a pattern to this. I found that I could be typing a sentence, and if I continue typing with monitor blinks off, what I type is there.
The - dash represents seconds - is one second of on/off. In the top left corner a small notice blinks on that has a image of a monitor and word "HDMI1" in it. I believe that icon is related. HDMI1? THE TEST. On - Off - - - ON ON - - - - - - - - Off Off - - - - - - - - ON and repeats. ON - Off Off - ON ON - - - - - - - - Off Off - - - - - - - - ON ON - Off Off - ON
All cables have been tried and passed. Reboots are Boot, not Restart before each try. I moved the monitor and replaced it with another Samsung and it worked fine - no blinking out.
I put the new monitor back and watched it fail. Again.
Has anyone else had this issue with same or with similar monitor?
More details.
The monitor is tied to a Alienware Aurora ACT 1250 with factory update to a Nvidia RTX 5080 and Intel i9 Ultra.
I bought this on Sept 26, 2025. Opened the box yesterday.
Too, note please that I played Far Cry 4 A first look on a . Everything looks like someone flattened them, circles look oval, squares look rectangle and so on. I didn't expect it look like that.
That sounds like an HDMI signal drop issue. Since your other monitor works fine, itโs likely the Samsungโs HDMI port or firmware. Try switching to a different HDMI port or cable type (DisplayPort if possible), disable โAuto Source Switchโ in settings, and update the monitor firmware โ that usually fixes the blinking and โHDMI1โ popup.
I discovered a further oddity. In between blinks off, I eventually loaded Far Cry 4. Once loaded, the monitor stopped blinking.
When I quit to desktop, the blinking blinking returned.
Though probably not, Dell offered to log in and during a 2 hours window, will check the desktop side of things. It's a very very long shot but it's my only hope of getting use out this expensive monitor.
I have followed the link that was sitting near the top of this topic/subject that appears to be a edit of my OP
MODEL # S49CG9325NXZA.
I bought it locally @ Staples - I picked it up at their store.
I received a email from Samsung telling me I received a reply. They must mean your reply.
Quote @thismarkjohnson "Try switching to a different HDMI port or cable type (DisplayPort if possible), disable โAuto Source Switchโ in settings, and update the monitor firmware โ that usually fixes the blinking and โHDMI1โ popup." unquote.
This isn't a usually I am afraid; that did not work. You also said "..disable "Auto Source Switch" in settings".
Whose settings? There are Microsoft, Google, Samsung...?
It is EXTREMELY difficult to click in between blink-off and click again, and again when there is a blink-on. One needs to click away the minutes and hours trying to navigate through random On - Off repeat.
Where, under whose settings do I disable "Auto Source Switch"?
I's rather not be tweaking settings and what aver else. I'd rather get what I paid for.
Sorry if I sound cross, but I think my chance to return this to the store ends very soon. I fear it is becoming a giant paper weight.
When submitting this, I get the error "An Unexpected Error has occurred." something about invalid HTML code. The reCaptcha expired. Wow. Can anything get any worse.
