Please replace the via_driver.c file (from openchrome) with this one, and check if it works.
If it hangs, check where it hangs.
Attach Xorg.0.log file after hang.
Please replace the via_driver.c file (from openchrome) with this one, and check if it works.
If it hangs, check where it hangs.
Attach Xorg.0.log file after hang.