Radeon blacklight issue

-rw-r--r-- 1 root root 319 11. Jun 10:19 /usr/lib/systemd/system/lightdm-playmouth.service
-rw-r--r-- 1 root root 340 20. Aug 11:37 /usr/lib/systemd/system/lightdm.service

I do not use plymouth, but there is your problem - two lightdm services.


sudo systemctl disable lightdm.service


did not helped. i tried these commands again, and got the same output.

sudo pacman -S sddm (or you could try gdm)
sudo systemctl enable sddm -f


or remove plymouth.

do you have lightdm-gtk-greeter installed?????

Plymouth removal:

Sorry, im new to linux, just open it up for me, and very excited about it. but anyway, what is lightdm-gtk-greeter? and how to check if if i did install it?

Secondly, i did the first one suggested and restarted. but boot process stopped now at:
Started Load/Save Screen Backlight Brightness of backlight:radeon_b10

The first command installs a new desktop manager.

The second command enables it.

lightdm needs a "greeter"

to check if installed:

sudo pacman -S lightdm-gtk-greeter

Sample output:

sudo pacman -S lightdm-gtk-greeter
warning: lightdm-gtk-greeter-1:2.0.2-1 is up to date -- reinstalling
resolving dependencies...
looking for conflicting packages...

Packages (1) lightdm-gtk-greeter-1:2.0.2-1

Total Installed Size:  0.93 MiB
Net Upgrade Size:      0.00 MiB

:: Proceed with installation? [Y/n] 

Note - -- reinstalling <<< so already installed.

ok, i checked, greeter is installed.

got some new Error

sddm533 Failed to start display server process
sddm533 Display server failed to start. Exiting

systemd-coredump593: Process 587 sddm of user 0 domped core
following by some nasty errors... just to much to type

Repeat with gdm instead of sddm - I had problems with sddm.

Then uninstall plymouth......

Basically I am trying to get it to your desktop......

ok, changed to gdm. did not uninstalled plymouth. aBut anyway, got to my desktop. Also got bunch of updates. running them now. how to check if my desktop running ok now?

Good question.... Only you will know.

Get rid of plymouth.

Then you can re-enable lightdm if you want.

my touchpad dont work properly now. it works like this.
anywhere i touch the mousepointer jumps on the same position on the desktop. seems that my touchpad simulate desktop coordinates. feels like im using tablet or something, very weard. i hope you understand what i mean, kind of difficult to explain.

Open a new post. In it post the output from:

inxi -Fx

Surround with three back ticks -

It makes it easier to read.

Also output of:

sudo pacman -Ss libinput

extra/catalyst-input 2016.09-1 (xorg12-drivers xorg12)
xf86-input drivers for Catalyst
extra/libinput 1.5.0-1 [installed]
Input device management and event handling library
extra/xf86-input-libinput 0.22.0-1 (xorg-drivers xorg)
Generic input driver for the X.Org server based on libinput


sudo pacman -Ss synaptic
extra/catalyst-input 2016.09-1 (xorg12-drivers xorg12)
xf86-input drivers for Catalyst
extra/xf86-input-synaptics (xorg-drivers xorg) [installed]
Synaptics driver for notebook touchpads
community/libsynaptics 0.14.6c-7
Library for accessing synaptics touchpads

This will not muddy the waters and get the attention of others. 
I am on my way out.

Thank you very much to you all. You help me a lot.

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