[SOLVED]Need help! System down - Failed to start light display manager after re-boot

Support Graphics & Display
21

Is there any output when use this command:

grep EE /var/log/Xorg.0.log

?

22

Yes see attached

20210122_184311
20210122_1843111328×747 309 KB

23

I am near to the end of my knowledge. What says

  less /etc/X11/xorg.conf.d/90-mhwd.conf
24

See attached

20210122_190403
20210122_1904032656×1494 793 KB
20210122_190426
20210122_1904262656×1494 617 KB
Screenshot_20210122-190547
Screenshot_20210122-1905471437×350 101 KB

25

Ok, so it try to load nonfree drivers.

Can you still post the output from

ls -la /etc/X11/xorg.conf.d/
26

I reinstalled Linux 5.4 and now the network is working again but still unable to access my desktop getting a black screen with blinking cursor.

27

See attached

Screenshot_20210122-193326
Screenshot_20210122-1933261437×797 236 KB

28

@lappetspm , can you please stop posting pictures? :roll_eyes:

Capture the text and paste it into a post.

29

System is down can’t do that sorry

30

Ok, seems there is the problem. First it loads the ‘20-nouveau.conf’ which is the free driver configuration and after then it loads ‘90-mhwd.conf’ which are the unfree driver configuration where the driver is removed.

So you have to delete ‘90-mhwd.conf’.

sudo rm /etc/X11/xorg.conf.d/90-mhwd.conf

Than restart the PC

1 Like
31

Removed the file and restarted the pc but I’m still getting a black screen. I tried using both kernels 5.4 and 5.10. Is there anything else you can suggest ?

32

If you type

ls -la /etc/X11/xorg.conf.d/

is there ‘90-mhwd.conf’ still in the output?

33

Please provide output of

ls -la /etc/modprobe.d
cat /etc/modules-load.d/modules.conf
34

No only 3 files

00-keyboard.conf
10-libinput.conf
20-nouveau.conf

35

Wollie

Contents of /etc/modprobe.d
Mhwd-gpu.conf
R8169_blacklist.conf

Contents of/etc/modules-load.d/modules.conf

# List of modules to load at boot
36

Please show

cat /etc/modprobe.d/Mhwd-gpu.conf
cat /etc/modprobe.d/R8169_blacklist.conf
37

Wollie

I think you solved it !

Contents of /etc/modprobe.d/mhwd-gpu.conf
blacklist nouveau
blacklist ttm
blacklist drm_kms_helper
blacklist drm

Contents of /etc/modprobe.d/r8169_blacklist.conf
blacklist r8169

So presumably I just remove the entry for blacklist nouveau and restart the pc?

38

Remove blacklist nouveau and blacklist ttm then run

sudo depmod -a

Then reboot.

Do you have a good reason to blacklist r8169? r8169 is the kernel built in module which usually works pretty good.

39

Wollie

No. I don’t know why that is blacklisted.

I’m editing this from the desktop instead of a mobile phone!
Thanks very much to you and kisun for resolving this issue.

1 Like
40

Thanks for all your help with this - it’s now resolved!

1 Like