Comment 20 for bug 1818816

Hi Kai,

If I use GDM, I can see display blinking aggressively. And for LightDM the service itself not starting getting below error

lightdm:1284): CRITICAL **: x_server_local_get_authority_file_path: assertion 'server != NULL' failed
update-alternatives: error: no alternatives for x86_64-linux-gnu_gfxcore_conf
lightdm[1484]: message repeated 3 times: [ /etc/modprobe.d is not a file]

Even I reinstalled lightdm packages and rebooted, still no luck.

As a workaround for now, I use acpi=off in grub to make machine back to graphical mode. But in this case also, if I reboot the machine hangs somewhere else, then hard reset is required.

@Kai do you need any specific logs or any command output for your investigation?

Thanks
Jay