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[SOLVED] gen-kernel 4.8.5 no display
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farmer.ro
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Joined: 20 Aug 2016
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PostPosted: Sat Oct 29, 2016 6:42 am    Post subject: [SOLVED] gen-kernel 4.8.5 no display Reply with quote

i did upgrade to genkernel 4.8.5 today.
after booting the 4.8.5 kernel as soon as grub finished loading, i get a total black screen, the same as if my display is turned off.

only solution is to hard power off the box.

in the past after a kernel upgrade i would be using the default noveau drivers, then after i would immediately switch to the closed source nvidia-drivers, however, since i get a black screen, i seem to be stuck with noveau drivers.
i am using nvidia GTX 970


Last edited by farmer.ro on Sat Oct 29, 2016 7:07 am; edited 1 time in total
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farmer.ro
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Joined: 20 Aug 2016
Posts: 179

PostPosted: Sat Oct 29, 2016 7:06 am    Post subject: Reply with quote

ok found solution:

in the previous kernels before 4.8.5 the NVIDIA Framebuffer (+NVIDIA Riva Framebuffer) was turned on by default, which seems to be required to use the NVIDIA NOVEAU drivers.

however in kernel 4.8.5 NVIDIA Framebuffer was turned off by default !?

i did not test if turning NVIDIA Framebuffer on for kernel 4.8.5 worked with NOVEAU drivers, but this seems to be the problem.

personally i switched to Closed Source nvidia-drivers and voila the screen works again.

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