I'm trying to profile my display using i1 Pro on Fedora 8 Linux (64 bit) and argyllcms 1.0.3. Dispcal passes through all measurements and locks up after displaying the "The instrument can be removed from the screen" message with the test window remaining on the screen. The program needs to be killed with ^C and no calibration file is created. Here's the last lines of output from "dispcal -v -D -yl -m -t 6500 -gs L2000C": patch 64 of 64About to read patch 0 dispwin_set_color called dispwin_set_ramdac called Setting gamma using Randr 1.2 Taking 1 measurments in Emission mode called i1pro: SetMeasureParam 14706, 22, 2, 0x06 SetMeasureParams got ICOM err 0x0 i1pro: Triggering measurement after 10msec delay Scheduled triggering OK i1pro: Read measurement results inummeas 2, scanflag 0, address 0x1425540 bsize 0x200 Read 2 readings, ICOM err 0x0 (Trig & rd times 5 -15 2033 -15) got reading abs. 0.333979 0.288499 0.390546, transfering to col on to next reading Brightness error = 0.719557 cd/m^2 White point error = 0.466049 deltaE Maximum neutral error (@ 0.804703) = 0.900549 deltaE Average neutral error = 0.512859 deltaE Number of measurements taken = 228 The instrument can be removed from the screen. i1pro: Write EEProm address 0x0 size 0x428 (NOT) Write 0x428 bytes, ICOM err 0x0 i1pro: Write EEProm address 0x800 size 0x428 (NOT) Write 0x428 bytes, ICOM err 0x0 i1pro: Terminate switch Handling Terminate Switch Handling done, ICOM err 0x0 ^Cusb_close_port() called usb port has been released and closed -- Markku Kolkka markku.kolkka@xxxxxx