Ubuntu 18.04 Stuck at Shutdown/Reboot. Possible issue with graphics card

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I upgraded from Ubuntu 17.10 to Ubuntu 18.04. Since then it always gets stuck on shutdown or rebooting while running through some commands. As a result, I have to do a hard reboot by pressing the power button. I have dual boot with Windows 10 with secure boot disabled.
When I boot to Ubuntu again, it gets stuck sometimes before login screen with a black screen or after login screen with a purple blank screen but I can login to tty.
Though it boots well if I run dpkg from the GRUB menu each time.
Even when I can log in, there is no brightness control working. Many times, Ubuntu fails to identify the lan connection.
How could I fix the shutdown problem?
System info:



Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
Intel Skylake GT2 [HD Graphics 520]
AMD radeon R7 M440
Ubuntu 18.04, kernel: 4.15.0-22-generic







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    I upgraded from Ubuntu 17.10 to Ubuntu 18.04. Since then it always gets stuck on shutdown or rebooting while running through some commands. As a result, I have to do a hard reboot by pressing the power button. I have dual boot with Windows 10 with secure boot disabled.
    When I boot to Ubuntu again, it gets stuck sometimes before login screen with a black screen or after login screen with a purple blank screen but I can login to tty.
    Though it boots well if I run dpkg from the GRUB menu each time.
    Even when I can log in, there is no brightness control working. Many times, Ubuntu fails to identify the lan connection.
    How could I fix the shutdown problem?
    System info:



    Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
    Intel Skylake GT2 [HD Graphics 520]
    AMD radeon R7 M440
    Ubuntu 18.04, kernel: 4.15.0-22-generic







    share|improve this question





















      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I upgraded from Ubuntu 17.10 to Ubuntu 18.04. Since then it always gets stuck on shutdown or rebooting while running through some commands. As a result, I have to do a hard reboot by pressing the power button. I have dual boot with Windows 10 with secure boot disabled.
      When I boot to Ubuntu again, it gets stuck sometimes before login screen with a black screen or after login screen with a purple blank screen but I can login to tty.
      Though it boots well if I run dpkg from the GRUB menu each time.
      Even when I can log in, there is no brightness control working. Many times, Ubuntu fails to identify the lan connection.
      How could I fix the shutdown problem?
      System info:



      Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
      Intel Skylake GT2 [HD Graphics 520]
      AMD radeon R7 M440
      Ubuntu 18.04, kernel: 4.15.0-22-generic







      share|improve this question











      I upgraded from Ubuntu 17.10 to Ubuntu 18.04. Since then it always gets stuck on shutdown or rebooting while running through some commands. As a result, I have to do a hard reboot by pressing the power button. I have dual boot with Windows 10 with secure boot disabled.
      When I boot to Ubuntu again, it gets stuck sometimes before login screen with a black screen or after login screen with a purple blank screen but I can login to tty.
      Though it boots well if I run dpkg from the GRUB menu each time.
      Even when I can log in, there is no brightness control working. Many times, Ubuntu fails to identify the lan connection.
      How could I fix the shutdown problem?
      System info:



      Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
      Intel Skylake GT2 [HD Graphics 520]
      AMD radeon R7 M440
      Ubuntu 18.04, kernel: 4.15.0-22-generic









      share|improve this question










      share|improve this question




      share|improve this question









      asked Jun 5 at 5:30









      dmishra

      12




      12




















          1 Answer
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          I had the same problem 'stuck at shutdown/reboot' But I found a workaround.



          How about trying old linux-kernels ? --- for example, v4.0-vivid, v4.1-wily ~ v4.5-wily




          1. Install ukuu:



            sudo add-apt-repository ppa:teejee2008/ppa
            sudo apt-get update
            sudo apt-get install ukuu



          2. Check the list of available kernels:



            sudo ukuu --list



          3. install old kernels:



            sudo ukuu --install v4.5-wily



          4. Remove current kernel:



            reboot by advanced mode and choose old kernel.open terminal.



            sudo ukuu --remove (current kernel)






          share|improve this answer























          • I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
            – dmishra
            Aug 10 at 6:15










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          1 Answer
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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote













          I had the same problem 'stuck at shutdown/reboot' But I found a workaround.



          How about trying old linux-kernels ? --- for example, v4.0-vivid, v4.1-wily ~ v4.5-wily




          1. Install ukuu:



            sudo add-apt-repository ppa:teejee2008/ppa
            sudo apt-get update
            sudo apt-get install ukuu



          2. Check the list of available kernels:



            sudo ukuu --list



          3. install old kernels:



            sudo ukuu --install v4.5-wily



          4. Remove current kernel:



            reboot by advanced mode and choose old kernel.open terminal.



            sudo ukuu --remove (current kernel)






          share|improve this answer























          • I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
            – dmishra
            Aug 10 at 6:15














          up vote
          0
          down vote













          I had the same problem 'stuck at shutdown/reboot' But I found a workaround.



          How about trying old linux-kernels ? --- for example, v4.0-vivid, v4.1-wily ~ v4.5-wily




          1. Install ukuu:



            sudo add-apt-repository ppa:teejee2008/ppa
            sudo apt-get update
            sudo apt-get install ukuu



          2. Check the list of available kernels:



            sudo ukuu --list



          3. install old kernels:



            sudo ukuu --install v4.5-wily



          4. Remove current kernel:



            reboot by advanced mode and choose old kernel.open terminal.



            sudo ukuu --remove (current kernel)






          share|improve this answer























          • I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
            – dmishra
            Aug 10 at 6:15












          up vote
          0
          down vote










          up vote
          0
          down vote









          I had the same problem 'stuck at shutdown/reboot' But I found a workaround.



          How about trying old linux-kernels ? --- for example, v4.0-vivid, v4.1-wily ~ v4.5-wily




          1. Install ukuu:



            sudo add-apt-repository ppa:teejee2008/ppa
            sudo apt-get update
            sudo apt-get install ukuu



          2. Check the list of available kernels:



            sudo ukuu --list



          3. install old kernels:



            sudo ukuu --install v4.5-wily



          4. Remove current kernel:



            reboot by advanced mode and choose old kernel.open terminal.



            sudo ukuu --remove (current kernel)






          share|improve this answer















          I had the same problem 'stuck at shutdown/reboot' But I found a workaround.



          How about trying old linux-kernels ? --- for example, v4.0-vivid, v4.1-wily ~ v4.5-wily




          1. Install ukuu:



            sudo add-apt-repository ppa:teejee2008/ppa
            sudo apt-get update
            sudo apt-get install ukuu



          2. Check the list of available kernels:



            sudo ukuu --list



          3. install old kernels:



            sudo ukuu --install v4.5-wily



          4. Remove current kernel:



            reboot by advanced mode and choose old kernel.open terminal.



            sudo ukuu --remove (current kernel)







          share|improve this answer















          share|improve this answer



          share|improve this answer








          edited Aug 8 at 5:06









          Stephen Rauch

          1,1545716




          1,1545716











          answered Aug 8 at 2:16









          bayou

          315




          315











          • I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
            – dmishra
            Aug 10 at 6:15
















          • I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
            – dmishra
            Aug 10 at 6:15















          I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
          – dmishra
          Aug 10 at 6:15




          I did not try going back to this long, but I tried a few kernels which were there by default, 4.15.20 and 4.15.18 iirc. That had not helped. But now I have reinstalled Ubuntu overwriting the previous version.
          – dmishra
          Aug 10 at 6:15












           

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