[Bug 64764] 845G: crtc active state doesn't match with hw state

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=64764

--- Comment #19 from mlsemon35 at gmail.com ---
(In reply to comment #18)
> Created attachment 79773 [details] [review]
> quirk the pipe A quirk
> 
> Please test the attached patch, thanks.

Ugh, I'm still being stupid, but here's as close as I can get to a test:

Your patch does not patch using `git am`, so I trimmed it down to a normal
patch and used `patch`.  The first hunk had an offset of around 200 lines, the
second hunk of about -162 lines.  The kernel compile was good.

I can run `xset dpms force off` and intel_reg_dumper all day long and not worry
too much about restarting X11 or getting those GTT errors.  I did get one GTT
error, but that may have been due to my normal-user account overrunning its
quota, and X11 couldn't touch a file in /tmp to set up the keyboard.  With
quota issues resolved, I couldn't reproduce the previous behavior on X11.

However, I still get the same backtrace when leaving the console alone for an
hour.  So for now, I'm taking this line in slackware-current's
/etc/rc.d/rc.M...

/bin/setterm -blank 15 -powersave powerdown -powerdown 60

...and trying to get a value for -powersave that won't instigate this behavior.
 The first try will be this...

/bin/setterm -blank 15 -powersave off

...and the settings for hsync blanking and vsync blanking will be tried as
well.

Now that I have a decent Internet connection, I'll refresh my kernel git and
try your patch again as well.

Thanks!

Michael

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