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I am running gentoo, but i run the vanilla kernel. Currently i am on kernel version 3.9.10 stable and all works great on my Asus Zenbook Prime with HD4000 intel ...
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  1. #1
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    KMS black screen with kernel 3.10 and higher


    I am running gentoo, but i run the vanilla kernel. Currently i am on kernel version 3.9.10 stable and all works great on my Asus Zenbook Prime with HD4000 intel graphics. The problem begins when i i try to upgrade to 3.10 (or higher, been trying with the 3.11 recently).

    If i compile the kernel and boot i get a black screen. The machine boots and i can ssh into it. I have trolled the internet and found many suggestions, most being acpi options. I set acpi=off and even compiled it out of the kernel and that does not help.

    Finally i set the nomodeset and then it boots without giving me the black screen, however it does not give me my nice 1920x1080 framebuffer i get with the 3.9.10 kernel, it gives me like a 1024x768 or something. I use the same .config between the kernels (and run make oldconfig). So i assume it is a KMS issue?

    I use the terminal a lot and would like to fix this. Any ideas?

    Here are the parameters i pass to the kernel (i need the acpi_osi for backlighting):

    root=/dev/sda3 acpi_osi="!Windows 2012"

    Thanks,

    Sean

  2. #2
    Linux Guru Rubberman's Avatar
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    Well, since you can ssh into it, the system is running and is healthy. Can you boot into console mode (runlevel 3 usually) and get a text login prompt? If so, what errors do you see if you run (as root) the startx command?
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

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