There are several things that can cause this.
Physical Issue: Check your RAM and HDD or SDD plug in/ contact points.
Software:
You can boot to the Recovery Menu
From Recovery Menu, first enable networking.
Back up to the menu and arrow key down to Drop to Root Prompt.
Hit enter
Then enter in the following commands (You probably do not need sudo due to root prompt, but I include them for ease for other users that need similar instructions)
sudo apt update && sudo apt upgrade
sudo apt clean && sudo apt install --reinstall plymouth
sudo dpkg --configure -a
1 Like
If it is a software issue, can installing zorin again freshly fix it instead of accessing grub? I'm out of town and can't access the device for a week and my brother needs the system but he is not techy enough to do these things.
A lot of issues are solved by doing just that, like a classic "power off and back on", so it worth a try.
It's also possible that the ISO file was corrupted during the download, so make sure to check for that. Also, make sure to let it run the filesystem check when you first start it.
1 Like
So I had the ISO file with me which I've used for installation, installed quickhash and checked integrity of iso file, it matches the hash checksums listed in zorin website. also I remember I didn't skip filesystem check during installation. also, unlike the flashing issue that I,ve had in previous post, now the system doesnt't boot up at all. it stays on the screen in picture, and it have be forced shut down(pressing power button for 5 sec) and power on the system.
it is very wired for me. 2 systems, one T470 , another L470, nearly identical specs,installation using same Iso and same usb stick at nearly same time, one running without any issues, another facing a ton of issues during boot. When it successfully boots up, it runs too smooth to be told to have some issues. I wonder how such system may have a hardware issue.
Next week I'll go home and try to reinstall plymouth as aravisian mentioned. If that doesn't work, I'll open it up. till then If anyone see any other possibilities, please share.
So, I'm back, and checked the device and the problems I've found are:
- the ^[[2~ printing at startup is back but this time with ^[[4~. @Aravisian you last time said 2 means insert key, what does 4 mean,home key?
- when I've opened some apps(seen only on non native apps e.g. free-tube,chrome etc., didn't happen in firefox) and then opened another app then switch back to the previous app, it scrolls itself automatically to bottom of the page and nither srcoll back up when scrolled on touchpad, nor I can select some texts or area with touchpad. it does start normal behavior after I press any key on keyboard.
- the plymouth boot screen issue is gone automatically.
- Shutdown takes more than 2 minutes.
That is End key, I believe.
This strongly implies that processes are balking and throwing repeat errors.
And hardware drivers fault.
First thing: How viable is backing up your data and a fresh install for you?
The first thing I would suspect (at a distance and based on limited information) is corruption of some form on the Drive has resulted in jumbling of critical system files.
A newly developed bad sector could do this.
And this matches the above; a failing HDD, SSD - drive, can cause the symptoms you describe.
Yep it feels like f4,f6 and end is sad, there must be something under those keys. also end key explains the 2nd case, it does have the behavior to lock pages at the ending.
there were some important files in the system which i've already moved so no problem in reinstalling OS. tomorrow I would open this up to clear the keyboard. don't know what is causing the key to stay pressed, although I don't see any debris there, its kinda stiffer than others.
I should first resolve the end key issue, then if some problem still exists, we shall look forward to ssd/ram issue.
1 Like
Found the culprit causing long shutdown time by pressing Win+x at the time of shutdown.
I don't need fingerprint, how do I fully disable this?
I disabled fingerprint reader from bios. anything else I have to do about fingerprint?
although Now i repaired the end key, I bought an external keyboard in case the internal keyboard starts to cause any problems. but how do i disable internal keyboard though? I couldn't find it in config in bios.
I've noticed, when i power off (through the option present in zorin menu), it usually shuts sown properly, but in rare case(I've noticed it for the second time) it doesnt properly shut down, I mean, the touchpad, screen and keypad shuts down(win + x doesn't show anything) but, the red light in thinkpad icon behind screen, the red light on f1 and f4 and the green light in power button stays on.
when i press power button, nothing happens, nither it turns on nor turns off and what i can only do in this stage is to keep the power button pressed for 5 seconds, it turns of completely. It feels like it goes in hibernation of windows, except it doesnt turn on on pressing power button.
You might remove the reader software in Zorin OS
sudo apt remove fprintd libpam-fprintd
That is less easy, but one method might be a nokbd kernel parameter - would need to identify your keyboard device, though.
A common one is i8042.nokbd
what is the command to find it?
would I be able to access bios with external keyboard though, in case if the plymouth boot screen type issue returns?
Usually with xinput but if using Wayland, which Zorin OS began to default to starting with Zorin OS 17, it would be libinput list-devices