Kristian wrote: > Sorry, my mail client had some problems, I accidentally sent a draft which > didn't include the > information. Here's it again: I'm using argyllcms 1.4.0 on Arch Linux. The > graphics card is a > NVIDIA NVS 3100M. "dispwin -r" has no effect on the screen. I'm guessing that you're using the NVidia drivers then. The problem is probably that the NVidia drivers say they do XRANDR, but don't actually implement it properly. You can work around this by setting the ARGYLL_IGNORE_XRANDR1_2 environment variable. [There was a report recently that the very latest NVidia drivers may finally fix this problem, but I'd imagine that you'd need to make sure it works with your kernel and distribution: <https://groups.google.com/forum/?fromgroups#!topic/colorhug-users/k_00ySospSc> ] Graeme Gill.