black screen after boot

[Colin Law]

On 4 November 2017 at 13:04, Liam Proven <lproven at gmail.com> wrote:
> On 4 November 2017 at 05:01, Bob <ubuntu-qygzanxc at listemail.net> wrote:
>> I upgraded from 17.04 to 17.10 in a test partition on my laptop a Lenovo T60.
>> When the upgrade was done I rebooted.  The system ran for a while with only a
>> black screen.  Since nothing was happening I entered my password, nothing
>> happened, I pressed some keys, nothing happened, at this point I assumed the
>> upgrade had failed so I pressed the power button.  Pressing the power button
>> caused the moon symbol on the laptop to light, this was a surprise so after the
>> disk activity light stopped blinking I pressed the power button again.  This
>> caused the login screen to display.  I did login and it appears that the system
>> functions properly.
>>
>> Now any time I boot that system it comes up with a black screen and I have to
>> press the power to put the system to sleep and then press the power button
>> again to wake it up and display the login screen.
>>
>> Since I have not seen any messages about anyone having the problem I assume I
>> am the only one with this problem.
>>
>> Anyone have an idea on how to fix this?
>
> https://www.cnet.com/products/lenovo-thinkpad-t60/specs/
>
> ATI graphics.
>
> What desktop? If was Unity, it's now GNOME. GNOME defaults to Wayland.
> Wayland won't work with ATI proprietary display drivers, but I have a
> machine of that age with an ATI Mobility Radeon GPU and it works well
> enough.

Is Wayland (or X for that matter) running before login?

However, if the user has autologin enabled then that may be the issue,
and it is not a login prompt he is getting, but an unlock prompt. @Bob
if you have got autologin enabled then disable it and see what
happens.

Colin