ubuntu18.04 cannot detect second diplay





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-1















2 screen connected to my computer,but only one can receive signal



i have already installed -driver-418 which was recommended



xrandr
Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary









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  • 3





    Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

    – j-money
    Mar 27 at 1:51


















-1















2 screen connected to my computer,but only one can receive signal



i have already installed -driver-418 which was recommended



xrandr
Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary









share|improve this question


















  • 3





    Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

    – j-money
    Mar 27 at 1:51














-1












-1








-1








2 screen connected to my computer,but only one can receive signal



i have already installed -driver-418 which was recommended



xrandr
Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary









share|improve this question














2 screen connected to my computer,but only one can receive signal



i have already installed -driver-418 which was recommended



xrandr
Failed to get size of gamma for output default
Screen 0: minimum 1920 x 1080, current 1920 x 1080, maximum 1920 x 1080
default connected primary






nvidia multiple-monitors






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Mar 27 at 1:07









stephen ethanstephen ethan

1




1








  • 3





    Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

    – j-money
    Mar 27 at 1:51














  • 3





    Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

    – j-money
    Mar 27 at 1:51








3




3





Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

– j-money
Mar 27 at 1:51





Possible duplicate of Failed to get size of gamma for output default when trying to add new screen resolution

– j-money
Mar 27 at 1:51










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