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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Clients are not yet ready for outputs that disappear at runtime, often
unexpectedly dieing with asynchronous BadOutput errors. A simple
workaround is to not remove any output just yet - but allow users to opt
in via xorg.conf, i.e.
Section "Device"
Option "DeleteUnusedDP12Displays" "true"
EndSection
The name chosen is to be consistent with the nvidia driver, which did
MST first and encountered all of these issues first, and has also been
adopted for -modesetting. If this is combined with persistent output
naming (i.e. based on DisplayPort branch topology), the number of
outputs presented to the user should be static.
Instead of removing the outputs, we have to mark them detached instead
to avoid throwing errors from the kernel.
Based on the patch for -modesetting by Dave Airlie.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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In commit dcf9b5ae1889926007cf8a0efd127e9df3c909de
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue Sep 17 22:27:45 2013 +0100
intel: Compile fixes for base install of SLED11.sp3
the includes were juggled around to avoid pulling in xorg-server.h
outside of the driver. However, missing xorg-server.h leads to subtle
bugs in the layout of structures, in this case breaking xf86Options.
Reported-by: FBrown <francisbrwn9@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=69555
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Too often our implementation of vsync or pageflip is buggy, or for some
other reason it is desired by the user to disable those code paths. Make
it possible once again by restoring the Options for the user to control.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Previously, we instantiated a fake output in case we had a machine with
no output. (For certain server-class products.) The Bumblee project were
also doing something very similar in order to fake an extended desktop
on the Intel igfx and copy portions onto a discrete GPU. (The preferred
method for doing this upstream is through the use of PRIME). As the code
is very similar, we can support both use-cases simultaneously.
This adds the option:
Section "Device"
Driver "intel"
Option "VirtualHeads" "<count>"
EndSection
to allow the user to specify an additional set of fake outputs, which
can then be controlled using xrandr.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Specifying
Section "Device"
Option "ReprobeOutputs" "true"
EndSection
will restore the old behaviour of scanning each output on startup and
picking a spanning mode.
The behaviour was changed in
commit 8a6a21bff86100144ba7960fc32a299ac54ada83 [2.21.11]
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Jun 26 13:29:48 2013 +0100
sna: Use the existing configuration for initial modes
Please do notify us of any circumstances that force you to use this
flag.
References: https://bugs.freedesktop.org/show_bug.cgi?id=66494
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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The kernel bugs have long since been fixed and should have been
propagated to all stable kernels long ago. Now there should be no need
to workaround those bugs.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Throttling and delayed-flush are now redundant.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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In case anyone ever wants to disable the default.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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This provides for using the existing DDX with future DRI drivers which
may break from the traditional names - but only with the help of the
user/packager. This scheme needs to be replaced with a robust mechanism
for driver loading if AIGLX and co are to be kept.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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The automatic selection may not correspond with the correct backlight
(such as in a multi-gpu, multi-panel device) or the user may simply
prefer another control interface. This allows them to override the
chosen interface using
Option "Backlight" "my-backlight"
to specify '/sys/class/backlight/my-backlight' as the interface to use
instead.
Suggested-by: Alon Levy <alevy@redhat.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=29273
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Run the risk of a GPU hang (it shouldn't endanger the entire machine
normally) and let the user elect to disable it through
Option "NoAccel" "true"
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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This was an incomplete hack so deprecate in favour of Shadow-on-Steriods,
SNA.
References: https://bugs.freedesktop.org/show_bug.cgi?id=47324
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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As we've chosen to fix the kernel to handle CRTC offsets > 4096, drop
the automatic workaround. However, allow the user to force creation of
PerCrtcPixmaps for the purpose of debugging (and to workaround the bug
in older kernels) and to fallback to trying a shadow fb if the setcrtc
fails with the composite fb.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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With the introduction of the third pipe on IvyBridge it is possible to
encounter situations where the combination of the three monitors exceed
the limits of the scanout engine and so prevent them being used at their
native resolutions. (It is conceivable to hit similar issues on earlier
generation, especially gen2/3.) One workaround, this patch, is to extend
the RandR shadow support to break the extended framebuffer into per-crtc
pixmaps.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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It works everywhere, so when it is finally enabled, let it be.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Commit 8a9a585341e2 ("Only create a single instance of the intel_options
array") moved the definition of intel_options into a separate .c file.
Several of the defined options are #ifdef'd based on the configuration,
but since config.h is never included, the macros being tested are never
defined. Therefore, none of the configuration-specific options will
ever be available at runtime, even if they should be.
Add an inclusion of config.h so that such configuration-specific options
work again.
Signed-off-by: Nick Bowler <nbowler@draconx.ca>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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