#1 2015-07-17 10:18:13

fhdk
Member
Registered: 2015-07-17
Posts: 2

LightDM black screen

This issue puzzles me.

If I do a 'normal' installation of Arch with X and LightDM the displaymanager works as expected but with BBQLinux install I end up with a LightDM which starts a black screen and only after clicking a mousebutton the login screen and wallpaper is shown.

I have been looking at /etc/lightdm/lightdm.conf and commenting out the autologinuser and timeout but no change.

I have done a forced install of lightdm with no change.

Why is it the wallpaper and loginbox first shows after a mouseclick.

I have googlet that LightDM had issues on Ubuntu where a racecondition could occur at some systems.

But this is my primary system and there has been no changes in hardware at all

Thinkstation E32 with i5-4570 CPU @ 3.20GHz, 32 GB ram and OZC and Samsung SSD's

LightDM behaves differently on BBQ install than a bare Arch install so this had lead me to the conclusion - it must be something in the BBQ install which triggers this odd behavior

FH @ bd net co

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#2 2015-07-31 18:09:53

codeworkx
Administrator
Registered: 2014-10-05
Posts: 87

Re: LightDM black screen

did you use lightdm-gtk-greeter on plain arch, too?

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#3 2015-10-18 13:02:58

fhdk
Member
Registered: 2015-07-17
Posts: 2

Re: LightDM black screen

codeworkx wrote:

did you use lightdm-gtk-greeter on plain arch, too?

yes

have done some testing on a fresh install of bbqlinux-mate - same issue.

update everything

    pacman -Syyu

logoff - same issue

uninstall and reinstall

    pacman -R lightdm-gtk-greeter

weird - this gives pacman error - package not found

so I issue an install

    pacman -S lightdm-gtk-greeter

this gives pacman error - files exists

okay then save bbqlinux conf file and force reinstall

    cp /etc/lightdm/lightdm-gtk-greeter.conf /etc/lightdm/lightdm-gtk-greeter.conf.save

    pacman -S lightdm-gtk-greeter --force

    cp /etc/lightdm/lightdm-gtk-greeter.conf.save /etc/lightdm-gtk-greeter.conf

logoff and what ??? problem solved

i have no idea what is going on but i am able to replicate it.

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