Thanks, carmar, for these helpful links. I think that we might have found a solution, two posts above (but I don’t know how to mark it as the solution).
Since this thread is started by @ribivi , he will have to mark the solution. I can also mark it but I’d like him to opine.
Can you also please try AZorin’s suggestion ?
I have this same problem today, and I need reinstall it.
The problem is on the lightdm and he cant solve by a reconfigure the lightdm, sometimes the computer simply cant stop looping on a black screen and the - ctrl + alt + f1 dont work so sometimes you simply cant do nothing, if the problem dont entry on a loop you need use -ctrl + alt + f1 or other tty text activation and simply put the command - startx and the session is active but the configs of Zorin Desktop like background are change.
The problem is on the update that system do on the firts update after install. But I cant find what is the real problem because in my case I try reconfigure lightdm, blacklist nouveau, aply nomodeset parameter, try to modify grub etc and nothing work.
Is a critical problem for users without experience on command line or kernel custom option at start.
If people have this problem they can access the session with the startx command.
I do some work to put here the hardware and the time of new installation, I do the update upgrade by the upgrade manager this evening at 6:00 pm (Portugal time) and then the computer crash with this problem and now I just finishing my new installation (I block the upgrade manager and install synaptic to have a better control of repositories and the upgrades that I need) .
I put here the result of some commands abut my hardware :
Blockquote
joao@joao-P4V88:~$ lspci
00:00.0 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:00.1 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:00.2 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:00.3 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:00.4 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:00.7 Host bridge: VIA Technologies, Inc. PT880 Host Bridge
00:01.0 PCI bridge: VIA Technologies, Inc. VT8237/VX700 PCI Bridge
00:0f.0 RAID bus controller: VIA Technologies, Inc. VIA VT6420 SATA RAID Controller (rev 80)
00:0f.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
00:10.0 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev 81)
00:10.1 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev 81)
00:10.2 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev 81)
00:10.3 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev 81)
00:10.4 USB controller: VIA Technologies, Inc. USB 2.0 (rev 86)
00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge [KT600/K8T800/K8T890 South]
00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 60)
00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102/VT6103 [Rhine-II] (rev 78)
01:00.0 VGA compatible controller: NVIDIA Corporation NV34 [GeForce FX 5500] (rev a1)
joao@joao-P4V88:~$
joao@joao-P4V88:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 3
model name : Intel® Pentium® 4 CPU 3.00GHz
stepping : 4
microcode : 0x17
cpu MHz : 2991.839
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts cpuid pni dtes64 monitor ds_cpl cid xtpr pti
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit
bogomips : 5983.67
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 32 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 3
model name : Intel® Pentium® 4 CPU 3.00GHz
stepping : 4
microcode : 0x17
cpu MHz : 2991.839
cache size : 1024 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
apicid : 1
initial apicid : 1
fdiv_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts cpuid pni dtes64 monitor ds_cpl cid xtpr pti
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds swapgs itlb_multihit
bogomips : 5983.67
clflush size : 64
cache_alignment : 128
address sizes : 36 bits physical, 32 bits virtual
power management:
joao@joao-P4V88:~$
joao@joao-P4V88:~$ cat /proc/version
Linux version 5.4.0-54-generic (buildd@lcy01-amd64-019) (gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)) #60~18.04.1-Ubuntu SMP Fri Nov 6 17:24:36 UTC 2020
joao@joao-P4V88:~$ ls -lact --full-time /etc | tail -1 | awk ‘{print $6,$7}’
2020-11-27 19:18:42.963062922
lscpu
Arquitetura: i686
Modo(s) operacional da CPU: 32-bit
Ordem dos bytes: Little Endian
CPU(s): 2
Lista de CPU(s) on-line: 0,1
Thread(s) per núcleo: 2
Núcleo(s) por soquete: 1
Soquete(s): 1
ID de fornecedor: GenuineIntel
Família da CPU: 15
Modelo: 3
Nome do modelo: Intel® Pentium® 4 CPU 3.00GHz
Step: 4
CPU MHz: 2991.839
BogoMIPS: 5983.67
cache de L1d: 16K
cache de L2: 1024K
Opções: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pebs bts cpuid pni dtes64 monitor ds_cpl cid xtpr pti
Blockquote
Other problem that I idetify is that the live ISO after test on this pc and in on the first time of live USB boot result in a critical crash on the internal native system of my internal disk, the grub is corrupted and also initramfs, because this I need to install Zorin , I cant solve the problem of the system of disk in case - Lubuntu 14.04. No problem I think this problem maybe can result by the software that I use to burn the ISO - etcher.
The system works very well on this pc. Great work of Zorin team. I hope that this post can help other users.
Thanks.
Hi, I’m sorry but in my case the 3 commands don’t worked 
. I don’t know exactly why. I tried the majority of the possibles solutions but don’t worked anyone. I think that it can be due to the pack can late to arrive to all the users 
. I thought to install Synaptic too. Best regards.
1 Like
Hi, yes exactly, I uploaded a new video to my youtube’s channel for showing it. The three commands don’t worked in my case I don’t have experience with the command line either. I reinstall it from 3 weeks ago for the same issue and the OS worked good during that time untill few days ago behind an update or an upgrade. I don’t know if I should reinstall it again but Is there a guarantee that the problem will be fixed? Do you need that I pass you the specs of my pc? Sorry if my English is not very good hehe. Best regards.
Please just paste the results of the commands here in your post.
Hi, excuse my ignorance, but how do I paste the results here into my post? I can only think of transcribing them manually or taking photos.
Having previously successfully applied the temporary workaround from cnimi, I have now allowed the software updater to apply your permanent fix which has also been successful. Many thanks.
2 Likes
Just like any other text editor. Once you run the commands, either:
- Drag-select the text using mouse and copy (Shift+ctrl +c OR Menu->Edit->Copy)
OR - Menu->Edit->SelectAll—>copy
Then paste in here (ctrl+v)
Hi, carmar,
Yes, I’ve tried AZorin’s suggestion. First I commented out the two lines that I had added to limits.conf. Then I used the Software Updater (inside Zorin) to update: lightdm-gtk-greeter:i386 (2.0.5-0ubuntu2+zorin1). Then I rebooted. The solution works. Thanks.
Hi @doz
Based on the video you uploaded, it appears that you didn’t enter the first command correctly. This prevented your computer from connecting to the Internet to download the latest package updates.
Please enter the following 3 commands exactly as they appear here:
sudo service network-manager restart
sudo apt update
sudo apt upgrade
Afterwards, you can reboot your computer by entering this command:
reboot
Hi @carmar and @AZorin thank you so much for the time and sorry for my lack of knowledge hehe. The problem was finally solved. 
I explain me, when I accessed from the recovery mode as recommended by @AZorin the results were:
Blockquote
The first command: sudo service network-manager restart
root@username-Intel-powered-classmate-PC:"# sudo service network-manager
Usage: /etc/init.d/network-manager (start|stop|restart|reload|force-reload|status)
root@username-Intel-powered-classmate-PC:"# /etc/init.d/network-manager restart
[ ok ] Restarting network-manager (via systemctl): network-manager.service.
The second command: sudo apt-get update
root@username-Intel-powered-classmate-PC:"# sudo apt-get update
Err:1 http://ppa.launchpad.net/zorinos/apps/ubuntu bionic InRelease
Fallo temporal al resolver <ppa.launchpad.net>
Err:2 http://ar.archive.ubuntu.com/ubuntu bionic InRelease
Fallo temporal al resolver <ar.archive.ubuntu.com>
Err:3 http://ar.archive.ubuntu/ubuntu bionic-updates InRelease
Fallo temporal al resolver <ar.archive.ubuntu.com>
Err:4 http://security.ubuntu.com/ubuntu bionic-security InRelease
Fallo temporal al resolver <security.ubuntu.com>
Err:5 http://packages.zorinos.com/stable bionic InRelease
Fallo temporal al resolver <packages.zorinos.com>
Err:6 http://packages.zorinos.com/patches bionic InRelease
Fallo temporal al resolver <packages.zorinos.com>
Err:7 http://packages.zorinos.com/apps bionic InRelease
Fallo temporal al resolver <packages.zorinos.com>
Err:8 http://packages.zorinos.com/drivers bionic InRelease
Fallo temporal al resolver <packages.zorinos.com>
Err:9 http://ppa.launchpad.net/zorinos/drivers/ubuntu bionic InRelease
Fallo temporal al resolver <ppa.launchpad.net>
Err:10 http://ppa.launchpad.net/zorinos/patches/ubuntu bionic InRelease
Fallo temporal al resolver <ppa.launchpad.net>
Err:11 http://ppa.launchpad.net/zorinos/stable/ubuntu bionic InRelease
Fallo temporal al resolver <ppa.launchpad.net>
Err:12 http://ar.archive.ubuntu.com/ubuntu bionic-backports InRelease
Fallo temporal al resolver <ar.archive.ubuntu.com>
Leyendo lista de paquetes… Hecho
W: Fallo al obtener http://ar.archive.ubuntu.com/ubuntu/dists/bionic/InRelease Fallo temporal al resolver <ar.archive.ubuntu.com>
W: Fallo al obtener http://ar.archive.ubuntu.com/ubuntu/dists/bionic-updates/InRelease Fallo temporal al resolver <ar.archive.ubuntu.com>
W: Fallo al obtener http://ar.archive.ubuntu.com/ubuntu/dists/bionic-backports/InRelease Fallo temporal al resolver <ar.archive.ubuntu.com>
W: Fallo al obtener http://security.ubuntu.com/ubuntu/dists/bionic-security/InRelease Fallo temporal al resolver <security.ubuntu.com>
W: Fallo al obtener http://packages.zorinos.com/stable/dists/bionic/InRelease Fallo temporal al resolver <packages.zorinos.com>
W: Fallo al obtener http://packages.zorinos.com/patches/dists/bionic/InRelease Fallo temporal al resolver <packages.zorinos.com>
W: Fallo al obtener http://packages.zorinos.com/apps/dists/bionic/InRelease Fallo temporal al resolver <packages.zorinos.com>
W: Fallo al obtener http://packages.zorinos.com/drivers/dists/bionic/InRelease Fallo temporal al resolver <packages.zorinos.com>
W: Fallo al obtener http://ppa.launchpad.net/zorinos/apps/ubuntu/dists/bionic/InRelease Fallo temporal al resolver <ppa.launchpad.net>
W: Fallo al obtener http://ppa.launchpad.net/zorinos/drivers/ubuntu/dists/bionic/InRelease Fallo temporal al resolver <ppa.launchpad.net>
W: Fallo al obtener http://ppa.launchpad.net/zorinos/patches/ubuntu/dists/bionic/InRelease Fallo temporal al resolver <ppa.launchpad.net>
W: Fallo al obtener http://ppa.launchpad.net/zorinos/stable/ubuntu/dists/bionic/InRelease Fallo temporal al resolver <ppa.launchpad.net>
W: No se han podido descargar algunos archivos de índice, se han omitido, o se han utilizado unos antiguos en su lugar.
The third command: sudo apt-get upgrade:
root@username-Intel-powered-classmate-PC:"# sudo apt-get upgrade
Leyendo lista de paquetes… Hecho
Creando árbol de dependencias
Leyendo la información de estado… Hecho
Calculando la actualización… Hecho
0 actualizados, 0 nuevos se instalarán, 0 parq eliminar y 0 no actualizados.
Blockquote
Then I accessed the sudo startx command, this took me to the desktop from recovery mode and from there I discovered that the first command disabled my wifi, I restored it, I executed the following commands, I reboot and it was solved, the whole system is as I used it before the issues.
1 Like
Good to know. Yeah, it looks like the network manager restart kept you offline, so nothing was updated. Since you updated once you were back online, that fixed it.
I too had this problem. Followed post no. 37’s advice and now I’m back good as new. Thank you, I love Zorin OS.
1 Like
Can we already do a
update upgrade on terminal now ?
Or if we do it the system crash ?
Because in my case I still cant see the grub and I already try tools like grub-customizer anything appears well but in the grub I still have a black screen.
I test the nomodest parameter and dont work.
Any option to install nvidia -173 on zorin ?
Thanks.
In my case the problem of black screen is worst because I cant see the grub and pass any parameter and the pc starts a loop between tty 1 to tty 7 (graphical) so when I press any key pc cant stop the loop or simply dont accept any key press event. If I boot the pc and the loop dont start I still never can see the grub and never can pass any command because the black screen appear the pc cant acept any key press method simply have a black screen and then if I can pass to tty only can do a startx and the X up or pass commands on text tty but pc still with the black screen and lightdm dont works. Is random problem effects, probably with a xorg problem or else and a initramfs problem upgrade after a update upgrade, so because I know if I do the upgrade the system starts with this problem I have this question about if I can do or not a upgrade on terminal or by update manager. In the first update for upgrade of the computer on the update manager appear a Xorg update like a zorin suggested upgrades I think maybe this is the update problematic packages.
I will stay without do any upgrade and do all upgrades for a specific packages and manage some software with synaptic.
At the moment with the pc without do the initial suggest update upgrade by update manager I havent any problem on lightdm but when I start the pc grub dont appear, never appear, but without a upgrade the lightdm works well and also the system .
Thanks.
The ZORIN desktop issue fix is not working for compaq nx9010.
New ZORIN installation.
sudo service network-manager restart
connect to the network.
sudo apt update
Fatched 88.7 kB
sudo apt upgrade
return that all is updated. 0 0 0 0
Have run this 3 times.
startx
does bring up the desktop with the white mouse .
nomodeset quiet splash bring up ZORIN desktop.
Live DO NOT bring up ZORIN desktop, but safe graphics show ZORIN desktop.
LXLE 32 bit Live og install don’t bring up LXLE desktop.
[I have encrypted the HDD. The "Please unlock disk … dialog-box is showed under ZORIN]