Ubuntu 18.04 is very slow on high end laptop












0















I have just installed Ubuntu 18.04 on a laptop and it worked perfectly. After installing it on another one (Asus RoG, i7, Nvidia GTX 950M, 16gb RAM), everything worked so poorly.



How it manifests: Whenever I want to drag a window with my mouse, or to write something, or to select an area on the screen, the rendering is so slow.



black screen



EDIT1: After doing what pilot6 pointed out, I managed to go past the slowness, but got stuck in an infinite loop at the login screen. Heynnema tried to help me out, but my .Xauthority file was missing.



EDIT2: In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem.










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  • Comments are not for extended discussion; this conversation has been moved to chat.

    – Mitch
    Mar 2 at 6:54






  • 1





    Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

    – Pilot6
    Mar 3 at 14:25
















0















I have just installed Ubuntu 18.04 on a laptop and it worked perfectly. After installing it on another one (Asus RoG, i7, Nvidia GTX 950M, 16gb RAM), everything worked so poorly.



How it manifests: Whenever I want to drag a window with my mouse, or to write something, or to select an area on the screen, the rendering is so slow.



black screen



EDIT1: After doing what pilot6 pointed out, I managed to go past the slowness, but got stuck in an infinite loop at the login screen. Heynnema tried to help me out, but my .Xauthority file was missing.



EDIT2: In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem.










share|improve this question

























  • Comments are not for extended discussion; this conversation has been moved to chat.

    – Mitch
    Mar 2 at 6:54






  • 1





    Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

    – Pilot6
    Mar 3 at 14:25














0












0








0








I have just installed Ubuntu 18.04 on a laptop and it worked perfectly. After installing it on another one (Asus RoG, i7, Nvidia GTX 950M, 16gb RAM), everything worked so poorly.



How it manifests: Whenever I want to drag a window with my mouse, or to write something, or to select an area on the screen, the rendering is so slow.



black screen



EDIT1: After doing what pilot6 pointed out, I managed to go past the slowness, but got stuck in an infinite loop at the login screen. Heynnema tried to help me out, but my .Xauthority file was missing.



EDIT2: In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem.










share|improve this question
















I have just installed Ubuntu 18.04 on a laptop and it worked perfectly. After installing it on another one (Asus RoG, i7, Nvidia GTX 950M, 16gb RAM), everything worked so poorly.



How it manifests: Whenever I want to drag a window with my mouse, or to write something, or to select an area on the screen, the rendering is so slow.



black screen



EDIT1: After doing what pilot6 pointed out, I managed to go past the slowness, but got stuck in an infinite loop at the login screen. Heynnema tried to help me out, but my .Xauthority file was missing.



EDIT2: In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem.







nvidia






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share|improve this question













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share|improve this question








edited Mar 3 at 23:05









karel

60.6k13132155




60.6k13132155










asked Mar 1 at 21:16









OldDewOldDew

33




33













  • Comments are not for extended discussion; this conversation has been moved to chat.

    – Mitch
    Mar 2 at 6:54






  • 1





    Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

    – Pilot6
    Mar 3 at 14:25



















  • Comments are not for extended discussion; this conversation has been moved to chat.

    – Mitch
    Mar 2 at 6:54






  • 1





    Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

    – Pilot6
    Mar 3 at 14:25

















Comments are not for extended discussion; this conversation has been moved to chat.

– Mitch
Mar 2 at 6:54





Comments are not for extended discussion; this conversation has been moved to chat.

– Mitch
Mar 2 at 6:54




1




1





Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

– Pilot6
Mar 3 at 14:25





Possible duplicate of Ubuntu 18.04 is too slow on my Asus r558ur

– Pilot6
Mar 3 at 14:25










1 Answer
1






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oldest

votes


















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Your initial problem of video slowness is caused by your Nvidia drivers needing reinstallation, and the removal of nomodeset in your /etc/default/grub.





Now, we clear up your login problem. If you've been starting graphic applications from the terminal using sudo, that's what probably caused your problem. Always use sudo -H.




  • boot to the GRUB menu

  • choose Advanced Options

  • choose Recovery mode

  • choose Root access

  • at the # prompt, type:



    • sudo mount -o remount,rw / # remount the disk as rw


    • cd /home/your_username # change directory


    • ls -al .*thority* # list some files




You should see something like this...



-rw------- 1 your_username your_username 407910 Nov  2 08:56 .ICEauthority
-rw------- 1 your_username your_username 58 Jun 23 2017 .Xauthority


If it DOES NOT show -rw------- then...





  • sudo chmod 600 .*thority* # change file protection


If it DOES SHOW root root then...




  • sudo chown your_username:your_username .*thority* # change file ownership


  • reboot # reboot the computer



Reboot and see if you can log in.






share|improve this answer


























  • Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

    – OldDew
    Mar 2 at 8:25











  • @OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

    – heynnema
    Mar 2 at 12:43











  • Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

    – OldDew
    Mar 3 at 19:47











  • @OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

    – heynnema
    Mar 3 at 20:16











  • That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

    – OldDew
    Mar 3 at 20:19












Your Answer








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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









1














Your initial problem of video slowness is caused by your Nvidia drivers needing reinstallation, and the removal of nomodeset in your /etc/default/grub.





Now, we clear up your login problem. If you've been starting graphic applications from the terminal using sudo, that's what probably caused your problem. Always use sudo -H.




  • boot to the GRUB menu

  • choose Advanced Options

  • choose Recovery mode

  • choose Root access

  • at the # prompt, type:



    • sudo mount -o remount,rw / # remount the disk as rw


    • cd /home/your_username # change directory


    • ls -al .*thority* # list some files




You should see something like this...



-rw------- 1 your_username your_username 407910 Nov  2 08:56 .ICEauthority
-rw------- 1 your_username your_username 58 Jun 23 2017 .Xauthority


If it DOES NOT show -rw------- then...





  • sudo chmod 600 .*thority* # change file protection


If it DOES SHOW root root then...




  • sudo chown your_username:your_username .*thority* # change file ownership


  • reboot # reboot the computer



Reboot and see if you can log in.






share|improve this answer


























  • Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

    – OldDew
    Mar 2 at 8:25











  • @OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

    – heynnema
    Mar 2 at 12:43











  • Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

    – OldDew
    Mar 3 at 19:47











  • @OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

    – heynnema
    Mar 3 at 20:16











  • That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

    – OldDew
    Mar 3 at 20:19
















1














Your initial problem of video slowness is caused by your Nvidia drivers needing reinstallation, and the removal of nomodeset in your /etc/default/grub.





Now, we clear up your login problem. If you've been starting graphic applications from the terminal using sudo, that's what probably caused your problem. Always use sudo -H.




  • boot to the GRUB menu

  • choose Advanced Options

  • choose Recovery mode

  • choose Root access

  • at the # prompt, type:



    • sudo mount -o remount,rw / # remount the disk as rw


    • cd /home/your_username # change directory


    • ls -al .*thority* # list some files




You should see something like this...



-rw------- 1 your_username your_username 407910 Nov  2 08:56 .ICEauthority
-rw------- 1 your_username your_username 58 Jun 23 2017 .Xauthority


If it DOES NOT show -rw------- then...





  • sudo chmod 600 .*thority* # change file protection


If it DOES SHOW root root then...




  • sudo chown your_username:your_username .*thority* # change file ownership


  • reboot # reboot the computer



Reboot and see if you can log in.






share|improve this answer


























  • Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

    – OldDew
    Mar 2 at 8:25











  • @OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

    – heynnema
    Mar 2 at 12:43











  • Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

    – OldDew
    Mar 3 at 19:47











  • @OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

    – heynnema
    Mar 3 at 20:16











  • That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

    – OldDew
    Mar 3 at 20:19














1












1








1







Your initial problem of video slowness is caused by your Nvidia drivers needing reinstallation, and the removal of nomodeset in your /etc/default/grub.





Now, we clear up your login problem. If you've been starting graphic applications from the terminal using sudo, that's what probably caused your problem. Always use sudo -H.




  • boot to the GRUB menu

  • choose Advanced Options

  • choose Recovery mode

  • choose Root access

  • at the # prompt, type:



    • sudo mount -o remount,rw / # remount the disk as rw


    • cd /home/your_username # change directory


    • ls -al .*thority* # list some files




You should see something like this...



-rw------- 1 your_username your_username 407910 Nov  2 08:56 .ICEauthority
-rw------- 1 your_username your_username 58 Jun 23 2017 .Xauthority


If it DOES NOT show -rw------- then...





  • sudo chmod 600 .*thority* # change file protection


If it DOES SHOW root root then...




  • sudo chown your_username:your_username .*thority* # change file ownership


  • reboot # reboot the computer



Reboot and see if you can log in.






share|improve this answer















Your initial problem of video slowness is caused by your Nvidia drivers needing reinstallation, and the removal of nomodeset in your /etc/default/grub.





Now, we clear up your login problem. If you've been starting graphic applications from the terminal using sudo, that's what probably caused your problem. Always use sudo -H.




  • boot to the GRUB menu

  • choose Advanced Options

  • choose Recovery mode

  • choose Root access

  • at the # prompt, type:



    • sudo mount -o remount,rw / # remount the disk as rw


    • cd /home/your_username # change directory


    • ls -al .*thority* # list some files




You should see something like this...



-rw------- 1 your_username your_username 407910 Nov  2 08:56 .ICEauthority
-rw------- 1 your_username your_username 58 Jun 23 2017 .Xauthority


If it DOES NOT show -rw------- then...





  • sudo chmod 600 .*thority* # change file protection


If it DOES SHOW root root then...




  • sudo chown your_username:your_username .*thority* # change file ownership


  • reboot # reboot the computer



Reboot and see if you can log in.







share|improve this answer














share|improve this answer



share|improve this answer








edited Mar 3 at 14:03

























answered Mar 1 at 23:56









heynnemaheynnema

21.1k22360




21.1k22360













  • Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

    – OldDew
    Mar 2 at 8:25











  • @OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

    – heynnema
    Mar 2 at 12:43











  • Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

    – OldDew
    Mar 3 at 19:47











  • @OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

    – heynnema
    Mar 3 at 20:16











  • That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

    – OldDew
    Mar 3 at 20:19



















  • Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

    – OldDew
    Mar 2 at 8:25











  • @OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

    – heynnema
    Mar 2 at 12:43











  • Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

    – OldDew
    Mar 3 at 19:47











  • @OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

    – heynnema
    Mar 3 at 20:16











  • That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

    – OldDew
    Mar 3 at 20:19

















Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

– OldDew
Mar 2 at 8:25





Thank you for your answer, but after I write the "ls -al .*thority*" command, I don't see .Xauthority. I only see .ICEauthority. As a result, the other commands do not help me.

– OldDew
Mar 2 at 8:25













@OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

– heynnema
Mar 2 at 12:43





@OldDew is .ICEauthority owned by root:root, or by you? If root:root, then the other commands will still work for you.

– heynnema
Mar 2 at 12:43













Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

– OldDew
Mar 3 at 19:47





Sorry for the long wait. In the end I gave up and reinstalled it again, but this time I chose something else instead of 'nomodeset' (noapic, nolapic, acpi=off), after some research. That fixed my problem. The install went smoothly and I never had those problems again. The problem would have been fixed by this answer if I had the .Xauthority file.

– OldDew
Mar 3 at 19:47













@OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

– heynnema
Mar 3 at 20:16





@OldDew but... by setting noapic, nolapic, acpi=off, you've partially crippled your computer.

– heynnema
Mar 3 at 20:16













That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

– OldDew
Mar 3 at 20:19





That was the only way I could work around it. After installing it, I've changed them back to normal and now everything seems fine.

– OldDew
Mar 3 at 20:19


















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