Aye, cautiously optimistic... I do have a ticket logged with Iiyama technical support with my symptoms etc. which I am waiting to hear back on so will see what they say too.
Right, I have had a few flickers there as well as the sleep issue and then the right side of the monitor getting corrupted/stuck..... :/
Hopefully just a one of, will keep an eye on it.
I heard back from iiyama tech support on the wake from standby issues.
Good news: they're aware it's a widespread problem, seem to think it might be fixable via software. Bad news: what they suggested didn't work for me, I'll post about it anyway maybe it helps one of you.
What they suggested: open the registry editor and navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\. Delete the contents of the \Configuration\ and \Connectivity\ sub-directories. Restart PC, restart monitor. (I also suggest using DDU in safe mode to uninstall your GPU driver prior to this, then a clean reinstall)
Still, so far I've had mine for a fortnight and despite the occasional standby hiccup I'm very happy with the monitor. Performance and value combined are pretty much the best in the 34" ultrawide space right now.
What GPU do you guys have? Here it is GTX 1070 MSI
The answer you got is the answer from their kind of "service desk" (I know because of the issue below). I will test a second one, but I am not so sure that it will fix my problems or that they actually will fix something... it may be related to only specific hardware (e.g. to the issue here the GTX 1080 and 2*** are not affected).
Somewhat related:
I had a screen from them before and it was basically "dying" when it was connected via DP to USB-C dock + standby/sleep (literally I had to cut the power to get it back on) + sometimes some glitches with HDMI/Nvidia but that happpened very very rare. I got a replacement, same problem with the USB-C dock at least.
Funny enough, now usualy using a TB3 dock (with DP - worked before), the new screen shows a jammed screen when I unfold the laptop (so laptop + external screen switch). I have to restart the laptop to get it fixed. Connecting the screen per usb-c dock via DP then to the TB3 dock fixes the issue. I may have told it before, here it is Intel HD 620 incl. old laptop bios, old tb3 firemware, ... so too many variables.