Hello Marc, I've checked openchrome source code: > CN700 is defined as PCI_CHIP_VT3314 In via_xvmc.c, line 373-385, we can see that only PCI_CHIP_VT3259 and PCI_CHIP_VT3364 is chromeXvMCPro chipset. Thus CN700 should not use chromeXvMCPro. Try to update /etc/X11/XvMCConfig with: > libchromeXvMC.so.1 Do you have better result? Regards, Vincent