Re: i386 i915drmkms on i82845G/GL

[Ryo ONODERA <ryo_on%yk.rim.or.jp@localhost>]

Hi,

My laptop has 8086/0a16, and

Option "AccelMethod" "SNA"

make my native X.org stable.


From: "John D. Baker" <jdbaker%mylinuxisp.com@localhost>, Date: Tue, 10 Feb 2015 16:10:11 -0600 (CST)

> 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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