I have a new graphics card (Gigabyte GT1030) and I’m getting odd behaviour. Can you advise how I can localise the fault.
On boot, the BIOS & GRUB graphics come up, and sometimes OS Tumbleweed starts fine, but at other times I get corrupted & unusable graphics: text (tty) login is inset from the left and extends off the bottom of the visible screen; graphics has a changing line of dots across the top and the graphic image is small (approx 1/4 screen) & offset - X11 doesn’t start.
Is this likely to be a card defect (so I should send the card back), driver, power supply or something else?
How can I distinguish between the possible causes?