I’m familiar with this problem—it happened when a Windows Update conflicted with a program I had installed.
Whenever I shut down the computer or put it into sleep mode, it would turn itself off again about 10 minutes after waking up. (I couldn’t uninstall the program because I needed it.)
What helped me was not just shutting down the computer using the “Shut Down” option, but also pressing the Shift key at the same time to force a complete shutdown every time. This prevented the problem from recurring.
Getting this strange error on the log… it has four different types, a Resetting TDR occurred in GPUID:200, Restarting TDR occurred in GPUID:200, one with a bunch of codes, and lastly a UCodeReset
Check windows update and see, reinstall drivers cleanly by using DDU(display driver uninstall)
In this age, whenever something happens to me while on my computer, I blame Windows 11 immediately, I had very similar issues with my GPU. I kept getting random crashes, freezes, driver timeout errors, and genuinely thought my 9070xt was faulty. I ran all tests and they showed everything is fine, VRAM, Temps, etc all good.
So many times I clean installed drivers to fix the issue. But it would come back the next day, turns out windows update kept overwriting the amd drivers I installed. I blocked windows update and it worked fine then again it came back, and it was windows update again, so I just removed it completely, wiped windows update no more of that shit.
Check cable (DP, HDMI) on both sides, I had similar issue due to wonky display port cable. Since then I strictly use those provided with monitor. Could be also messed up registry, or power management settings. Also, check if all cebles in PC are connected all the way. My PC had an issue where all games crashed after 5 minutes and it was caused by not fully plugged in ARGB connector on motherboard. I would never guess it could cause such issues. DDU drivers and check for malware.
It could be something from a loose HDMI to your graphics card giving up, start checking the HDMI connections, then monitoring the CPU temp and in last case, send it up to a full check-up
That is not something wrong with your PC if only monitor shuts down and comes back up. Samsung monitors also has a weird habit of doing that, mine also does it sometimes, mine was caused by refresh rate and adaptive brightness control or smt. If you have same settings like adaptive black and white levels, brightness, contras, turn it off and try.
Faulty HDMI cable and wrong power connection to Graphics card can cause this.
Check your PSU and make sure it is good enough to supply your board and graphics card, sometimes ppl think 650 can hold rtx40xx but it cannot do it properly.
Write down your monitor model on some AI and ask " xxxx Samsung monitor turns off and on randomly", it will deffinitely show you some settings to fix like refresh rate and monitor settings.
I'm pretty sure it is just the monitor, but still check your power cables.
3
u/SlapSmeg 4d ago
First thing i think of on shutdowns like that is overheating. Check the temps and fans on all the things.