Laptop lost ability to sleep 18.04












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I have a relatively fresh 18.04 install on a Lenovo T580 laptop. For a long time, sleep/standby and resume worked fine.



Then I tried to enable hibernate by replacing the 2 GB swap file with a 16 GB swap partition before finding out that hibernate is impossible in Ubuntu.



But after making a 16 GB swap partition with gparted and enabling it in fstab, my laptop lost its ability to even sleep.



If I press the sleep button now, the screen instantly goes black, but the fan doesn't turn off. After 30 seconds, the lock screen comes on. Choosing sleep again does the same again. Choosing sleep again for the third time sometimes actually makes the laptop sleep, sometimes not.



Should I revert back to a 2 GB swap file instead of a 16 GB swap partition and hope that solves the problem? Or could this be unrelated?










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    I have a relatively fresh 18.04 install on a Lenovo T580 laptop. For a long time, sleep/standby and resume worked fine.



    Then I tried to enable hibernate by replacing the 2 GB swap file with a 16 GB swap partition before finding out that hibernate is impossible in Ubuntu.



    But after making a 16 GB swap partition with gparted and enabling it in fstab, my laptop lost its ability to even sleep.



    If I press the sleep button now, the screen instantly goes black, but the fan doesn't turn off. After 30 seconds, the lock screen comes on. Choosing sleep again does the same again. Choosing sleep again for the third time sometimes actually makes the laptop sleep, sometimes not.



    Should I revert back to a 2 GB swap file instead of a 16 GB swap partition and hope that solves the problem? Or could this be unrelated?










    share|improve this question

























      0












      0








      0








      I have a relatively fresh 18.04 install on a Lenovo T580 laptop. For a long time, sleep/standby and resume worked fine.



      Then I tried to enable hibernate by replacing the 2 GB swap file with a 16 GB swap partition before finding out that hibernate is impossible in Ubuntu.



      But after making a 16 GB swap partition with gparted and enabling it in fstab, my laptop lost its ability to even sleep.



      If I press the sleep button now, the screen instantly goes black, but the fan doesn't turn off. After 30 seconds, the lock screen comes on. Choosing sleep again does the same again. Choosing sleep again for the third time sometimes actually makes the laptop sleep, sometimes not.



      Should I revert back to a 2 GB swap file instead of a 16 GB swap partition and hope that solves the problem? Or could this be unrelated?










      share|improve this question














      I have a relatively fresh 18.04 install on a Lenovo T580 laptop. For a long time, sleep/standby and resume worked fine.



      Then I tried to enable hibernate by replacing the 2 GB swap file with a 16 GB swap partition before finding out that hibernate is impossible in Ubuntu.



      But after making a 16 GB swap partition with gparted and enabling it in fstab, my laptop lost its ability to even sleep.



      If I press the sleep button now, the screen instantly goes black, but the fan doesn't turn off. After 30 seconds, the lock screen comes on. Choosing sleep again does the same again. Choosing sleep again for the third time sometimes actually makes the laptop sleep, sometimes not.



      Should I revert back to a 2 GB swap file instead of a 16 GB swap partition and hope that solves the problem? Or could this be unrelated?







      18.04 suspend swap hibernate






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      share|improve this question










      asked Feb 3 at 13:07









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