Same problem here. When the nvidia GPU is prime-selected, I'm getting a black
screen on startup, though Ubuntu booted and I can hear it working when I adjust
sound volume with the keyboard. When intel GPU prime-selected, everything
works fine.
Like others who posted here, for me the GPU switching function worked before
end of January, when after some updates (I really don't know which ones, I
didn't follow) this error occured and keeps persisting. I tryed the solutions
described on the posts #15 and #18 but they didn't work for me. Additionally I
get an error message at startup: System program problem detected. Do you want
to report the problem now?. When I select Report problem..., it shows a
screen where I can check error details and it says ExecutablePath
/usr/bin/Xorg.
Please keep this thread alive, we need a solution.
OS: Ubuntu 14.04.1 LTS 64bit
Laptop: Acer E5-571G
GPU: NVIDIA GeForce 840M and Intel HD 4400
Kernel: 3.13.0-45-generic
CPU: Intel Core i7-4510U
Regard
arhiivs
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https://bugs.launchpad.net/bugs/1362848
Title:
ubuntu 14.04 after install nvidia binary driver 331.89 black screen
and freeze
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