I tested it with new M2X extension and without extension with newly arrived WD SN500 500Gb and old Samsung Evo 970Plus 1Tb. As soon as I access the NVMe m.2 for benchmarks or copy files, some crazy screen flickering appears.
It also randomly happens but not very often on the screen(flickering) as long as the NVMe is plugged in.
It’s happening with official focal server 5.12 and focal desktop 5.12 on both of my Vim3 Pro’s.
I have latest u-boot and OS is working from eMMC and I don’t have anything connected on USB3 port. Only USB2 port is being used on Vim3 Pro by a logitech unifying dongle.
Kbi configuration on latest Krescue has been set to “Set port mode to PCIe” to allow OS to recognized NVMe drive.
Obviously, I’m using official 24W(12V/2A) PSU and I already have several and tried them all already without success.
Tried with two(2) 36W PD USB-C PSU’s(12V/3A) and same flickering issue was present.
Flickering issue also happening with the following NVMe drives: Adata XPG SX8200 Pro 512GB, Mushkin Helix-L – 250GB, Sabrent Rocket Q 1TB NVMe.
I wanted to confirm seeing the same behavior on my Vim3 + “New” M2X. As one other data point, it isn’t limited to a graphical desktop; using the text-mode console without Xorg or Wayland running at all still results in severe noise & flickering, and the machine is more or less unusable for any interactive/local use.
There don’t appear to be any correlated system log messages, though I could check again if a particular subsystem seems worth checking.
I ran into this issue before and lost what I had done to ‘fix,’ the issue. This looked familiar: NVMe Tuning …fiddling with the power settings and then saving the setting while it was mounted seems to have fixed things and the flickering is gone. I recklessly tried all of the options with complete abandon and then everything was fine.
…it threw an angry? message about saving but then the screen was fine so I am okay with the outcome. I wrote some random data to the drive and it didn’t have any trouble. At any rate if this helps anyone great (If not, it’ll be a reminder for myself). I haven’t rebooted yet but I feel optimistic it will stick.
I’m having the same issue with the same drive (970 EVO Plus) but on the official Android image. Not sure if i can set the power settings on the droid?
Flickering only occurs when doing a heavy operation (copying a file) to or around the NVMe disk. Tried lots of different power supplies, including one that goes up to 65W/20V so I don’t think it’s the power supply.