On 26 February 2013 13:13, Graeme Gill <graeme@xxxxxxxxxxxxx> wrote: >> 1. dispread saves the content of the vcgt and re-applies them when the >> command finishes > That's what it does. Ohh, I guess that's not working in some cases then. > Maybe restoring the vcgt can be added to the signal handling > code. It will have to coordinate with the USB recovery though > (ie. I'll have to make it more general). > Of the top of my head, this would seem to be the least complicated > fix. Right. I know signal handling code is sometimes tricky. > There's no guarantee that the display was using the installed profile at > the time. The user might deliberately have installed some other > calibration curve, something they are free to do using dispwin. True. I guess fixing the load-at-exit stuff is probably what needs to happen. Thanks for the sanity check. Richard.