Subject: [ERROR]Cannot access secondary GPU - error: [XORG] (EE) /dev/dri/card0: failed to set DRM interface version 1.4: Permission denied Before the problem occured,I noticed that sevaral information :" W: Possible missing firmware /lib/firmware/rtl_nic/rtl8105e-1.fw for module r8169"when apt-get install bumblebee.then I thought it's the focus and search it.I found the pages+"http://askubuntu.com/questions/39487/possible-missing-firmware-lib-firmware-rtl-nic-rtl8105e-1-fw-f+or-module-r8169-w"I just follow "Do sudo apt-get install firmware-realtek and the problem should be solved"Everything was be okay. --------------------------------
