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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
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?
Scenario: I fixed a lot of my issues over the weekend, by using "X -config" ,and then used the auto-generated xorg.conf, but first commenting out things not display-related, and the extra monitor that it added.
Then the system booted up, and even started X!
Morning comes: The battery was fully charged. Black screen is back.
j
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