@Kai-Heng, if that can help this is my configuration below: -Dell Latitude E7450 on a Dell docking station with two screens (1 VGA , the other -Intel® Core™ i7-5600U CPU @ 2.60GHz × 4 -GeForce 840M/PCIe/SSE2
ggalibert@ggalibert-Latitude-E7450:~$ lsmod | grep i915 i915 1208320 3 i2c_algo_bit 16384 1 i915 drm_kms_helper 155648 2 i915,nvidia_drm drm 364544 6 i915,drm_kms_helper,nvidia_drm video 40960 3 i915,dell_wmi,dell_laptop Last working kernel version is 4.4.0-72. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs