well, I have a new problem, when I am playing in Facebook, after five minutes the pc turn off and later, when I turn on apear the following error "no ums support in radeon module".
I was searching this new problem in Google and discover that the solution of this this problem to change GRUB_CMDLINE_LINUX_DEFAULT="nomodeset quiet splash" with GRUB_CMDLINE_LINUX_DEFAULT="quiet splash" in GRUB.
But now the problem of black screen return.
well, I have a new problem, when I am playing in Facebook, after five minutes the pc turn off and later, when I turn on apear the following error "no ums support in radeon module". LINUX_DEFAULT= "nomodeset quiet splash" with GRUB_CMDLINE_ LINUX_DEFAULT= "quiet splash" in GRUB.
I was searching this new problem in Google and discover that the solution of this this problem to change GRUB_CMDLINE_
But now the problem of black screen return.