Re: i386 i915drmkms on i82845G/GL

["John D. Baker" <jdbaker%mylinuxisp.com@localhost>]

On Tue, 10 Feb 2015, Manuel Bouyer wrote:

> On Mon, Feb 09, 2015 at 07:21:07PM -0600, John D. Baker wrote:
> > to use Xorg with the intel driver panics the machine immediately.
> 
> Does it panic if you disable accel ?
> Option     "NoAccel"
> in the "Device" Section. 

I was going to be surprised to say "no", but that was a false positive.
Having just finished running with the "wsfb" driver, I put a minimal
"xorg.conf" in place:

  Section "Device"
    Option "NoAccel"
    Identifier "Card0"
    Driver "intel"
  EndSection

(nothing else) and ran 'startx' again.  The machine didn't panic/reboot,
but it was hung with a black screen.  A serial-line 'getty' was still
working, but 'login' never completed.  At the PC console, the keyboard
seemed to work--at least enough to break into 'ddb' and reboot, typing
blindly.

Upon reboot, I tried again and the machine panicked right away.

If the console is the serial port, the VGA output is disabled when
i915drmkms attaches.  Subsequently starting X spins forever looking for
an active video output and doesn't panic.

I have relevant log excerpts--as much as I could gather.  They may be a
bit spam-y but if desired I'll post them in separate replies.

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