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*In general & tldr = For now I the "black screen" problem is solved!
As Risto reminded us, I went back into my latest xorg.conf and checked that Option "NoAccel" "true" was enabled, and this fixed it. I had so many different test files, and at some point I just didn't update that setting in my final file.
...FYI also, I am also getting a really great performance by using lightdm (display manager), in combination with openbox, making careful selections for the applications, e.g. the nice-looking lxterm, but mostly with stuff typically used with xfce.
I will follow up sometime with a brief post of my exact yboot.conf and xorg.conf settings.
*Re: David's > I'm curious how the file generated by "X -configure" was overwritten after > a reboot. Does "X -configure" by default generate an ephemeral > configuration xorg.conf file?
"X -configure" creates customized, template for xorg.conf, and it saves it in a different directory; then you can edit and move the file to /etc/X11/xorg.conf
The generated new-config template is a regular file; and I have no idea why my system worked in the middle of the night, but then failed again the next morning. It seems like I temporarily got a working x-system by switching over to a different terminal at just the right moment... or perhaps nouveax acceleration worked that time for some reason... but then typically doesn't work [on such a system as a G4 powerbook].
I learned about this command from: https://wiki.debian.org/Xorg ... which was very helpfully linked-to, from the X.org website
*Also, I did double check that in my particular case I had already disabled the screensavers, and all of the laptop mode (auto dim/off-on), so here, that didn't seem to be a factor.
Best,jb
> > -----Original Message----- > From: gw [j] iza [b] superstar > Sent: Tuesday, March 25, 2014 12:31 PM > To: debian-powerpc@lists.debian.org > Subject: Re: Debian Stable, G4 powermac, X11 crashes on boot with, "black > screen" + therm issue? > > Thanks Risto & Dave, > > I do have NoAccel true in xorg.conf, > but checking for the auto-dim and screensaver as possible problems are both > also good tips. > > I also meant to say in my follow up, X -configure [not "config"], created a > file > that temporarily worked for me, but then the same issue came back after a > reboot. > > Here is my original post: > https://lists.debian.org/debian-powerpc/2014/03/msg00042.html > > jb > > On Tuesday 25 March 2014 07:26:38 Risto Suominen wrote: > > One option you might try in your xorg.conf's Section "Device": > > > > Option "NoAccel" "true" > > > > I have put it in mine. I don't remember why. This is a 12" PowerBook 1.33 > > MHz. > > > > lspci. > > 0000:00:10.0 VGA compatible controller: NVIDIA Corporation NV34M > > [GeForce FX Go5200] (rev a1) > > > > dmesg: > > [ 10.305792] [drm] nouveau 0000:00:10.0: Detected an NV30 generation > > card (0x034900a3) > > > > Risto > > I remember having this issue on an old PowerBook G4 15” (which I no longer > have). It was related to the screensaver starting. The screensaver would > start but instead of displaying the graphics, it would black-out the > screen. Neither keypress nor mouse movement would return to the desktop. > I recommend > removing your screensaver. Additionally, try disabling the > auto-dim/auto-off > for the display. > Dave > > From: gw [j] iza [b] superstar > Sent: Monday, March 24, 2014 9:53 AM > To: debian-powerpc@lists.debian.org > Subject: Re: Debian Stable, G4 powermac, X11 crashes on boot with, "black > screen" + therm issue? > > > > Is there any reason why X would start normally, > > > > but then a few hours later, crash with the same old problem?
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