Re: kern/49707: i386 i915drmkms on 82845G/GL panic with Xorg intel driver

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

The following reply was made to PR kern/49707; it has been noted by GNATS.

From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/49707: i386 i915drmkms on 82845G/GL panic with Xorg intel
 driver
Date: Tue, 7 Apr 2015 21:52:22 -0500 (CDT)

 I was briefly able to run the Xserver with the intel driver in 7.99.9.
 
 The machine had been running with the "wsfb" driver for several hours
 displaying the 'xdm' greeter widget (IIRC, "wsfb" used to be able to do
 DPMS screen blanking, but lately it cannot and the screen stays on all
 the time--not good for a CRT and probably not good for LCD either).  (I
 cannot turn the monitor off due to kern/49398.)
 
 To see if changes since my last post to this PR made any difference I
 logged in, logged out again, then stopped 'xdm' (and the Xserver) by
 pressing "Ctrl-R" three times at the login widget (why it insists on
 performing "finish-field" instead of terminating immediately I don't
 know).
 
 The display didn't revert to wscons screen 0 automatically, so I switched
 manually with "Ctrl-Alt-F1".  I moved the "/etc/X11/xorg.conf" file that
 specified the "wsfb" driver aside and started X manually:
 
   $ X -retro &
 
 It took a while and I was expecting the machine to reboot like it usually
 does, but after a few more seconds, the X display appeared!  With the
 foresight to push the server in the background, I was able to switch
 back to the original terminal and start a few clients and it worked
 quite nicely.
 
 Figuring that running with "wsfb" first might have caused some
 initialization to occur that was missed starting the intel driver, I
 stopped everything and rebooted the machine.
 
 Alas, I am unable to repeat this event.  I've tried staring the X server
 with the "wsfb" driver and then restarting without any config (autodetect
 intel driver), but doing so panics and reboots the machine as it has
 in the past.
 
 -- 
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