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sudo add-apt-repository ppa:oibaf/graphics-drivers

sudo apt update

sudo apt upgrade

After I have used these commands, I restart my pc but it shows the below message :

started GNOME display manager. Dispatcher service... system changes.pp link was shut down.

I had to wait 1 hour and restart using power button but it shows the same message . What should I do to fix this problem ?

System conf : Ubuntu 18.04

Graphics : Amd radeon r5

Denny John
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rak r
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  • When I use Ctrl +Alt+F2 ,then no login command line show. – rak r Jun 22 '18 at 07:27
  • How can I get login command line , there is any another way, because this (Ctrl +Alt+F2 ) is not working in my PC, – rak r Jun 22 '18 at 07:39
  • Now I have done using Ctrl+Alt+F4, but problem has occurred.new message shows. UBUNTU :clean, 273917/59785216 files, 24845812/239123200 blocks – rak r Jun 22 '18 at 08:26
  • Actually I am unable to do anything, please can you tell me step by step. what I should to do, for look my PC as previous. Now my screen show black. etc/apt/sources.list.d to remove the ppa you added. Then use apt to try to downgrade the packages you updated – rak r Jun 22 '18 at 08:44
  • I use your code then ( -bash: /etc/apt/sources.list.d: is a directory) now what I should to do. – rak r Jun 22 '18 at 08:53
  • Possible duplicate of Machine does not start – xiota Jun 22 '18 at 09:02

1 Answers1

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What most likely happen is that you are trying to use oibaf/graphics-driversdriver which is for x-org, but you are running Wayland with then new Gnome3. The reason gnome isn't working is that the drivers changed to using aren't right for Gnome. Stopped using X.org and now uses Wayland. X.org is the program that lets the Linux kernel access your monitor. X.org is really old, and has a lot of problems because in the time it's been around for a long as it has. When it was first made it was for very different technology compared to what we are using now and had to changed to accommodate more modern technology. Don't get me wrong, most end users really shouldn't notice a difference between X.org or Wayland. Wayland is new and was developed to be a replacement for X.org.

In short, you are using the wrong driver. But that's good because now we can change it back to the old driver. If you can get a command line after boot, and log in, you then want to uninstall the driver:

sudo apt-get install ppa-purge
ppa-purge ppa:oibaf/graphics-drivers

Then run to clean up the system:

sudo apt autoremove
sudo apt update
sudo apt upgrade

Then restart the computer:

sudo reboot

If the problem persists, when you upgraded you system after changing the PPA something else was changed in the upgrade that is causing this problem.

xiota
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9716278
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  • Now screen shown black – rak r Jun 22 '18 at 09:11
  • I think there is no solution for this , if I restore Ubuntu 16.04 to factory state then problem will solve or not? – rak r Jun 22 '18 at 09:21
  • You can reinstall Ubuntu, and if it was working before, it should work again. However, since you're trying to use PPAs, presumably to use more updated software, you should consider using 18.04. – xiota Jun 22 '18 at 09:28