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Thread: 13.04 install on mbpro 8,2: black screen

  1. #1
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    Mar 2010
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    13.04 install on mbpro 8,2: black screen

    Hi, I downloaded both the 64bit and 64bit+mac version of the iso and used them to boot both from CD and USB (EFI BOOT FROM rEFInd).
    I reach to grub2 screen and then is black screen.
    If I add some modeset(i915, radeon etc.) to grub2, the same used in the past to switch off video cards and get working framebuffer, I can watch the system loading process trough framebuffer but X fails to start even if I manually load radeon or i915 drivers.
    So.. any way to get at least the boot process fully working?

    Thanks

  2. #2
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    Apr 2013
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    Re: 13.04 install on mbpro 8,2: black screen

    You should try efi stub loader. It may work better for you. Although i have as of yet not been able to get graphics card switching working(both intel and ati boot up and run) i have no trouble booting up. Im not sure why radeon isn't working for, but i know the intel card will show a black screen everytime i switch to it. Although the fact that your using grub my be the reason why radeon wont boot. Without bios mod the vbios for the card doesnt load right. Im using efi stub loader on the same system as you and it boots radeon just fine(Other than the fact that catalyst drivers don't want to play friendly. Im pretty sure this will load the your ati card into a working condition. Alternativley you can try compiling your own kernel and patching it to load the vbios in grub. This would from what i read boot you with both discrete and integrated graphics working. The instructions can be found here(and they are actually rather recent). http://ubuntuforums.org/showthread.php?t=2103743. When he points you toward the patch webpage use the gentoo one. Im currently(although slowly since i have finals) trying to see if i recompile my kernel with these settings if i can get my gpu switching to work. Id also recommend using ubuntus kernel source(can get it with apt) since at that point youll have the same kernel setup except one patch as you did before.

    But once again if you dont want to go through the trouble of compiling a new kernel use efi stub loader which can be achieved through refind. If your using ubuntu 13.04 your kernel will support this method.
    If you need any help doing this let me know.

  3. #3
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    Mar 2010
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    Re: 13.04 install on mbpro 8,2: black screen

    Quote Originally Posted by bootlessxfly View Post
    You should try efi stub loader. It may work better for you. Although i have as of yet not been able to get graphics card switching working(both intel and ati boot up and run) i have no trouble booting up. Im not sure why radeon isn't working for, but i know the intel card will show a black screen everytime i switch to it.
    Well, I've already reported a bug, I get te exact problem with EFISTUB and 3.8 kernel!

    https://bugzilla.kernel.org/show_bug.cgi?id=56911

    Quote Originally Posted by bootlessxfly
    Although the fact that your using grub my be the reason why radeon wont boot. Without bios mod the vbios for the card doesnt load right. Im using efi stub loader on the same system as you and it boots radeon just fine(Other than the fact that catalyst drivers don't want to play friendly. Im pretty sure this will load the your ati card into a working condition. Alternativley you can try compiling your own kernel and patching it to load the vbios in grub. This would from what i read boot you with both discrete and integrated graphics working.
    From what I've read about kernel 3.8, one of the major fixes that it brings it's the solving of the radeon bios loading problem! At least this would be in the plans of the developers.

    https://bugs.freedesktop.org/show_bug.cgi?id=26891

    Quote Originally Posted by bootlessxfly
    The instructions can be found here(and they are actually rather recent). http://ubuntuforums.org/showthread.php?t=2103743. When he points you toward the patch webpage use the gentoo one. Im currently(although slowly since i have finals) trying to see if i recompile my kernel with these settings if i can get my gpu switching to work. Id also recommend using ubuntus kernel source(can get it with apt) since at that point youll have the same kernel setup except one patch as you did before.

    But once again if you dont want to go through the trouble of compiling a new kernel use efi stub loader which can be achieved through refind. If your using ubuntu 13.04 your kernel will support this method.
    If you need any help doing this let me know.
    I will try this as a last chance, thanks!

  4. #4
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    Apr 2013
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    Re: 13.04 install on mbpro 8,2: black screen

    Quote Originally Posted by supermario87 View Post
    Well, I've already reported a bug, I get te exact problem with EFISTUB and 3.8 kernel!

    https://bugzilla.kernel.org/show_bug.cgi?id=56911
    I just took a look at your bug report. I have the exact same problem on my mbp8.2. I could be wrong about this becuase I've never gave grub a second look when i found out about efi_stubs, but wouldnt this be an intel xserver bug and not an EFI stub bug. Or have you been able to get intel to work with xserver on ubuntu 13.04 before? I do know that EFI stub boots ubuntu with the gallium radium drivers working just fine.

    I also think it'll be useful to point out that other people using 13.04 and there hybrid graphics. I think its a problem with x-server.


    Quote Originally Posted by From what I've read about kernel 3.8, one of the major fixes that it brings it's the solving of the radeon bios loading problem! At least this would be in the plans of the developers.

    [URL
    https://bugs.freedesktop.org/show_bug.cgi?id=26891[/URL]

    I will try this as a last chance, thanks!
    Yes this is why i am able to boot it through EFI stub. I can even turn on the intel card. But if i try to make it the active driver, the screen blacks out. But the computers boots using the radeon card by default so it work, Id just like it to work better, The main reason why i said this is because i wasn't sure if grub was the problem in loading or not. If you can't get it to boot with grub. Ive been booting mine off stub for a week or so now. Works fine except intel card wont display properly)

    I tryed compiling the kernel using the ubuntu source as a base and patching only the file for storing vbios and it did not work for me. Once it booted all it did was flash stripes at me(this is more than it's done before when i tell intel gpu to do anything, it ussually just stays black) So im thinking that it has to be xserver(maybe It's a newer version not playing nice). Im still gonna keep the kernel(The guy who wrote the article wrote it for kernel 3.8) It may be important to note that i didn't use grub like the directions said but instead used stub loading. Could of been the problem but im still thinking xserver.

    Another useful bit of advice is that fglrx(catalyst) would install but would never display when i rebooted(another reason why i think it is xserver)

    So having said all that i just came across an article of potential interest. His proccess he uses fglrx. But im sue you could use gallium if you wanted. I think the main thing that should interest you about this is that it removes xvideo intel and replaces it with one customized for ati/intel switching


    I havn't had a chance to test this yet.. but if you decide you wanna try, id recomend making a little uninstall script somewhere on your root. That when you restart your computer if the display wont work you can go into console and fix it.

    and also make sue you dont let ubuntu update to their new driver. Otherwise there is a good cahnce your display will not be working when you reboot
    http://askubuntu.com/questions/20511.../288355#288355

    But anyways, I still think if you cant get grub to boot at all that booting with the stub loader would be best for now.

    Edit:

    By the way when i turn on my intel card and grep the x.org.0.log file i get this:
    [ 22.387] (==) Matched intel as autoconfigured driver 2
    [ 22.449] (II) LoadModule: "intel"
    [ 22.449] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
    [ 22.522] (II) Module intel: vendor="X.Org Foundation"
    [ 22.598] (==) Matched intel as autoconfigured driver 2
    [ 22.599] (II) LoadModule: "intel"
    [ 22.599] (II) Loading /usr/lib/xorg/modules/drivers/intel_drv.so
    [ 22.599] (II) Module intel: vendor="X.Org Foundation"
    [ 22.599] (II) UnloadModule: "intel"
    [ 22.599] (II) Unloading intel
    [ 22.599] (II) Failed to load module "intel" (already loaded, 0)
    [ 22.603] (II) intel: Driver for Intel Integrated Graphics Chipsets: i810,
    [ 22.681] (II) intel(G0): SNA compiled: xserver-xorg-video-intel 2:2.21.6-0ubuntu4 (Bryce Harrington <bryce@ubuntu.com>)
    [ 23.010] (EE) intel(G0): [drm] Failed to open DRM device for pci:0000:00:02.0: No such file or directory
    [ 23.010] (EE) intel(G0): Failed to become DRM master.
    [ 23.010] (II) UnloadModule: "intel"

    So im thinking that the patched xserver driver is the best option for this problem.
    Last edited by bootlessxfly; May 2nd, 2013 at 02:04 PM.

  5. #5
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    Mar 2010
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    Re: 13.04 install on mbpro 8,2: black screen

    I finally managed to install ubuntu 13.04 from usb with grub2 method, I used the old(but gold) method of switching off radeon from grub2.
    Now I'll try to follow the method from Chav

  6. #6
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    Apr 2013
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    Re: 13.04 install on mbpro 8,2: black screen

    I hope it works for you. If it does let me know. I tried to use the modded intel package. But that does not seemed to have had much affect. I read around and people have suggested running this through kernel params: "i915.lvds_channel_mode=2 i915.modeset=1 i915.lvds_use_ssc=0 i915.i915_enable_rc6=1 $vt_handoff." So might be worth trying. Im going to start working on getting this to work again now that my finals are done. Hopefully one of us can get it working.

  7. #7
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    Mar 2010
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    Re: 13.04 install on mbpro 8,2: black screen

    As mentioned in the other thread, I've some problem to boot the kernel compiled with full support to vga switching, I think is a driver related problem!
    I cant post any log because the kernel goes in panic at boot.

  8. #8
    Join Date
    May 2013
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    Re: 13.04 install on mbpro 8,2: black screen

    Hi,

    has anyone of you guys already solved the black screen issue after switching to the integrated graphics device?

    I have installed Ubuntu 13.04 using
    Code:
    ubiquity -b
    just like in this tutorial. Hence I shouldn't have GRUB-Bootloader installed. Nonetheless after installing I found a GRUB Bios partition on my disk. I guess it is not in use but still I dread deleting it before knowing whether it could be useful sometime.
    I can use Ubuntu perfectly just until I try to switch output to the integrated graphics device using vga switcharoo. After restarting the Xserver my screen remains black but Ubuntu is still running as I am able to reboot via terminal.

    At the moment I use rEFInd to boot Ubuntu in EFI mode. I also tried the kernel params mentioned before:
    Code:
    i915.lvds_channel_mode=2 i915.modeset=1 i915.lvds_use_ssc=0 i915.i915_enable_rc6=1 $vt_handoff
    Unfortunately with no effect so far. The same applies if I only use
    Code:
    i915.lvds_channel_mode=2 i915.modeset=1
    Deactivation of the radeon graphics device with
    Code:
    radeon.modeset=0
    results in errors and low graphics mode.

    So is there finally a solution to get the integrated intel graphics working with a 13.04 install?

  9. #9
    Join Date
    May 2013
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    2

    Re: 13.04 install on mbpro 8,2: black screen

    Hello,

    can anyone post his /etc/X11/xorg.conf file please. I edited mine and later reversed the changes after nothing worked any longer. But since then I always have to reboot several times to see the login-screen. VGA switcheroo isn't working any longer, too.

    At least I can state that the following tutorial does not work on MacBook Pro 8,2: http://petevalentine-residence.clien....net.nz/ubuntu

  10. #10
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    Apr 2013
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    Re: 13.04 install on mbpro 8,2: black screen

    I do not believe the xorg file is used by default anymore. I could be wrong about this but i do not see one in my set up(ubuntu 13.04). I know this won't help you now but next time make a back up before you mess with stuff like that.

    As far as switching, as far as i can tell and see this is a bug. I think this may also be why i can't correctly install the catalyst driver's. Last i saw no one had started working on this problem. But i havn't been keeping up with is for a while.

    Would be interested to know if anyone finds a workaround for this and also if anyone has been able to get catalyst working in ubuntu 13.04.

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