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Re: PowerMac G5, GeForce FX 5200, black screen



Wow, Dan!

Unlike Luigi, I have no need for X on this machine.  I’m happy (indeed, I’m overjoyed!) to have a working text console.

I’m now using
    append=“ nomodeset”
On my MacPro G5, which has an nvidia card.  To be specific:

    $ lspci | grep -i VGA
    0000:0b:00.0 VGA compatible controller: NVIDIA Corporation NV43 [GeForce 6600 LE] (rev a2)

How can I add this discussion to your bug report at bugs.freedesktop.org as further evidence of the problem?

Thank you a thousand times!
Rick

On Apr 30, 2015, at 10:49 PM, Dan DeVoto <dand1972@yahoo.com> wrote:

> On my machine with an ATI card, the boot parameters "radeon.modeset=0" or "nomodeset" work.  So on the second Yaboot screen, I type either "Linux radeon.modeset=0" or "Linux nomodeset" to disable KMS.  For machines with Nvidia cards, you can do either "Linux nomodeset" or "Linux nouveau.modeset=0".  To make the boot parameters permanent so you don't have to type them in anymore, add them with the "append" line to your yaboot.conf like this:
> 
> image=/boot/vmlinux
>    label=Linux
>    read-only
>    initrd=/boot/initrd.img
>    append="nomodeset video=offb:off"
> 
> I added the "video=offb:off" parameter because my machine experienced a bug where the open firmware framebuffer was inhibiting the fall-back radeon framebuffer from loading:
> 
> https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=782066
> 
> Also, don't forget to run "sudo ybin -v" after changing yaboot.conf.  I always forget that.
> 
> Regards,
> 
> Dan
> 
> --------------------------------------------
> On Thu, 4/30/15, Rick Thomas <rbthomas@pobox.com> wrote:
> 
> Subject: Re: PowerMac G5, GeForce FX 5200, black screen
> To: "Dan DeVoto" <dand1972@yahoo.com>
> Cc: "luigi burdo" <intermediadc@hotmail.com>, "Risto Suominen" <risto.suominen@gmail.com>, "PowerPC List Debian" <debian-powerpc@lists.debian.org>
> Date: Thursday, April 30, 2015, 5:39 PM
> 
> Disabling KMS sounds like
> something I could try (as I say, no X running on this
> machine).
> 
> How do I do
> that?
> 
> Thanks!
> Rick
> 
> On Apr
> 30, 2015, at 2:02 PM, Dan DeVoto wrote:
> 
>> I have the black screen problem on my
> iBook.  It happens about halfway through the boot process,
> when kernel modesetting is enabled.  I left a bug
> report:
>> 
>> https://bugs.freedesktop.org/show_bug.cgi?id=90220
>> 
>> A workaround is to
> boot with parameters that disabled KMS, but if you have X
> running you'll have an unaccelerated desktop.
>> 
>> Regards,
>> 
>> Dan
>> 
>> 
>> 
> --------------------------------------------
>> On Thu, 4/30/15, Rick Thomas <rbthomas@pobox.com>
> wrote:
>> 
>> Subject:
> Re: PowerMac G5, GeForce FX 5200, black screen
>> To: "luigi burdo" <intermediadc@hotmail.com>
>> Cc: "Risto Suominen" <risto.suominen@gmail.com>,
> "PowerPC List Debian" <debian-powerpc@lists.debian.org>
>> Date: Thursday, April 30, 2015, 1:35 PM
>> 
>> 
>> I
>> don’t have X.org
> on this machine.  I’m trying to keep
>> 
> it as simple as possible, so I did not install any
> desktop
>> task.  Just the basic virtual
> terminal console.
>> 
>> 
> Even so, I get the usual text
>> streaming
> by during the boot process, but then a blank
>> screen.  The system is up — I can ssh
> into it, but no
>> console.
>> 
>> Anybody know
>> what’s causing it?
>> 
> 
>> Rick
>> 
>> On Apr
>> 30, 2015, at
> 5:02 AM, luigi burdo <intermediadc@hotmail.com>
>> wrote:
>> 
>>> I start have
>> this
> issue on Jessie
>>> but the black
>> screen is the simptom i face because Xorg
> make a hard crash
>> (reported to xorg
> devs).
>>> switch to tty
>> ... and try to make xinit or start x .
>>> 
>> 
>>> On wheezy delete the xorg.conf and
>> probably you will fix it
>>> 
>>> Luigi
> Burdo
>>> 
>>>> 
> Subject: Re: PowerMac G5, GeForce FX
>> 
> 5200, black screen
>>>> From: rbthomas@pobox.com
>>>> Date: Thu, 30 Apr 2015 02:49:42
>> -0700
>>>> CC: debian-powerpc@lists.debian.org
>>>> To: risto.suominen@gmail.com
>>>> 
>>>> 
> Hi
>> Risto,
>>>> 
> 
>>>> 
>> I’m
> seeing this as well. I have a PowerMac11,2 (dual core
>> G5 7GB RAM)
>>>> 
> 
>>> 
>>> Did you
> ever discover how to fix it without holding
>> back on the kernel level?
>>>> 
>>>> 
> Anybody? All clues are welcome!
>>>> 
> 
>>>> Thanks!
>>>> Rick
>>>> 
> 
>>>> On Dec 1, 2014, at 6:16 AM,
> Risto
>> Suominen <risto.suominen@gmail.com>
>> wrote:
>>>> 
>>>> 
>>> Hi,
>>>>> 
>>>>> This is probably an old
> issue,
>> possibly discussed before, even
> on this list.
>>>>> 
>>>>> 
>> I've
> been holding my linux-image as version 3.2.0-2 to
>> avoid the problem.
>>>>> 
>>>>> So, the problem: after
> upgrading
>> to 3.2.0-4, X display is not
> working.
>>> 
>>>> According to Xorg.log everything
> is as before, but
>> the screen remains
>>>>> black. (At
>> boot the text console is ok.)
>>>>> 
>> 
>>>>> I'm using kernel
> command
>> line:
>>>>> 
>>> 
>>>> video=TV-1:d
>>>>> 
>>>>> and xorg.conf:
>>>>> 
>>>>> 
>> Section
> "Device"
>>>>> 
>> Identifier "Configured Video
> Device"
>>>>> BusID
>> "PCI:240:16:0"
>>>>> 
>> Driver
> "nouveau"
>>>>> 
>> Option "Monitor-TV-1"
> "Configured
>> Monitor"
>>>>> Option   
>> "NoAccel"   
> "true"
>>>>> 
> EndSection
>>> 
>>>> 
>>>>> 
> Section
>> "Monitor"
>>>>> 
>> 
> Identifier "Configured Monitor"
>>>>> Option "Ignore"
>> "true"
>>>>> 
>> 
> EndSection
>>>>> 
>>>>> Section "Screen"
>>>>> Identifier "Default
>> Screen"
>>>>> Device
>> 
> "Configured Video Device"
>>> 
> 
>>>> EndSection
>>>>> 
>>>>> In addition, I've tried
> to
>> add /etc/modprobe.d/nouveau.conf:
>>>> 
>>> 
>>>>> nouveau noaccel=1
>>>>> 
>>>>> 
>> It makes
> no difference.
>>>>> 
>>>>> I'm using Wheezy (7.7)
> with
>> all latest packages.
>>>>> 
>>>>> The machine is PowerMac7,3
>> (2x1,8 GHz, 1,25 GB RAM).
>>>>> 
>>>>> Anyone else seen this?
>>>>> 
>>>>> 
>> Risto
>>>>> 
>> 
>> 
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>> 
> 
>> 
> 
> 
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