Krita Canvas Corruption Fix for Laptops
I don’t know how many others experience this issue, but when I have Krita open and I close the lid on my Lenovo laptop w/ an nVidia card, running Kubuntu, then open it, the art area becomes corrupted, most likely because the graphics card’s memory becomes screwy or something during sleep. The fix is simple: pick a layer or a few layers that cover large parts of the canvas and toggle them on and off. This will force Krita to have to redraw these areas and get them back into the video card’s RAM correctly. The layer on which I draw comic panel borders is the one I ususally use, since they cover nearly the whole canvas.