Commit Graph

274 Commits

Author SHA1 Message Date
Laércio de Sousa 718223d274 systemd-logind.c: don't parse VT settings for non-seat0 X servers
Since non-seat0 X servers no longer touch VTs, I believe these settings
are unnecessary.

Signed-off-by: Laércio de Sousa <laerciosousa@sme-mogidascruzes.sp.gov.br>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2015-12-08 11:54:11 -05:00
Hans de Goede 2092f12a24 linux: Do not call FatalError from xf86CloseConsole
FatalError ends up calling xf86CloseConsole itself, so calling FatalError
from within xf86CloseConsole is not a good idea.

Make switch_to log errors using xf86Msg(X_WARNING, ...) and return success
(or failure).

This makes switch_to match the other error checking done in xf86CloseConsole
which all logs warnings and continues.

Add checking of the return value in xf86OpenConsole and call
FatalError there when switch_to fails, to preserve the error-handling
behavior of xf86OpenConsole.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1269210
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-10-21 10:35:51 -04:00
Armin K cb695b0f3b xfree86/os-support/linux: Fix make distcheck
Header was added in 1dba5a0b19
but not in Makefile.am, resulting in missing header in the
distribution tarball.

Signed-off-by: Eric Anholt <eric@anholt.net>
2015-07-16 12:32:38 -07:00
David Herrmann 780a69aff0 systemd-logind: do not rely on directed signals
Right now, Xorg does not install DBus matches for "PauseDevice" /
"ResumeDevice". Therefore, it should usually not receive those DBus
signals from logind. It is just a coincidence that systemd-logind sends
those signals in a directed manner right now. Therefore, dbus-daemon
bypasses the broadcast matches.

However, this is not ABI and Xorg should not rely on this. systemd-logind
is free to send those signals as broadcasts, in which case Xorg will
freeze the VT. Fix this by always installing those matches.

Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Keith Packard <keithp@keithp.com>
Reported-by: Jan Alexander Steffens <jan.steffens@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2015-06-23 09:42:31 +02:00
Hans de Goede c88a325899 systemd-logind: Only use systemd-logind integration together with keeptty
systemd-logind integration does not work when starting X on a new tty, as
that detaches X from the current session and after hat systemd-logind revokes
all rights any already open fds and refuses to open new fds for X.

This means that currently e.g. "startx -- vt7" breaks, and breaks badly,
requiring ssh access to the system to kill X.

The fix for this is easy, we must not use systemd-logind integration when
not using KeepTty, or iow we may only use systemd-logind integration together
with KeepTty.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Tested-by: Aaron Plattner <aplattner@nvidia.com>
2015-06-03 11:31:47 +02:00
Hans de Goede 81bcada14e linux: Add a may_fail paramter to linux_parse_vt_settings
linux_parse_vt_settings() was split out of xf86OpenConsole so that it can
be called earlier during systemd-logind init, but it is possible to run
the xserver in such a way that xf86OpenConsole() is never used.

The FatalError calls in linux_parse_vt_settings() may stop the Xorg xserver
from working when e.g. no /dev/tty0 is present in such a setup.

This commit adds a may_fail parameter to linux_parse_vt_settings() which
can be used to make linux_parse_vt_settings() fail silenty with an error
return in this case, rather then calling FatalError().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2015-06-03 11:31:41 +02:00
Hans de Goede 1dba5a0b19 linux: Add linux_parse_vt_settings and linux_get_keeptty helpers
systemd-logind integration does not work when starting X on a new tty, as
that detaches X from the current session and after hat systemd-logind revokes
all rights on any already open fds and refuses to open new fds for X.

This means that currently e.g. "startx -- vt7" breaks, and breaks badly,
requiring ssh access to the system to kill X.

The fix for this is easy, we must not use systemd-logind integration when
not using KeepTty, or iow we may only use systemd-logind integration together
with KeepTty.

But the final KeepTty value is not known until the code to chose which vtno to
run on has been called, which currently happens after intializing
systemd-logind.

This commit is step 1 in fixing the "startx -- vt7" breakage, it factors out
the linux xf86OpenConsole bits which set xf86Info.vtno and keepTty so that
these can be called earlier. Calling this earlier is safe as this code has
no side effects other than setting xf86Info.vtno and keepTty.

Note this basically only moves a large chunk of xf86OpenConsole() into
linux_parse_vt_settings() without changing a single line of it, this is
hard to see in the diff because the identation level has changed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2015-06-03 11:31:30 +02:00
Peter Hutterer f82dc6bd91 xfree86: drop if 0 hunk
Disabled in 2005. bye bye.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2015-05-20 11:53:36 +10:00
Ray Strode b1029716e4 systemd-logind: don't second guess D-Bus default timeout
At the moment, the X server uses a non-default timeout for D-Bus
messages to systemd-logind. The only timeouts normally used with
D-Bus are:

1) Infinite
2) Default

Anything else is just as arbitrary as Default, and so rarely makes
sense to use instead of Default.

Put another way, there's little reason to be fault tolerant against
a local root running daemon (logind), that in some configurations, the
X server already depends on for proper functionality.

This commit changes systemd-logind to just use the default timeouts.

Downstream-bug: https://bugzilla.redhat.com/show_bug.cgi?id=1209347
Signed-off-by: Ray Strode <rstrode@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2015-04-17 10:57:48 -07:00
Ray Strode 792e925167 systemd-logind: filter out non-signal messages from message filter
It's possible to receive a message reply in the message filter if a
previous message call timed out locally before the reply arrived.

The message_filter function only handles signals, at the moment, and
does not properly handle message replies.

This commit changes the message_filter function to filter out all
non-signal messages, including spurious message replies.

Downstream-bug: https://bugzilla.redhat.com/show_bug.cgi?id=1209347
Signed-off-by: Ray Strode <rstrode@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2015-04-17 10:57:31 -07:00
Jürg Billeter 0a78b599b3 int10: Fix error check for pci_device_map_legacy
pci_device_map_legacy returns 0 on success.

Signed-off-by: Jürg Billeter <j@bitron.ch>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2015-03-13 12:31:21 +10:00
Peter Hutterer 732fd7e571 Drop trailing whitespaces
sed -i "s/[ ]\+$//g" **/*.(c|h)

happy reviewing...
git diff -w is an empty diff.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-11-12 10:25:00 +10:00
Jon TURNEY 28337cb14e xserver: Move 'pragma GCC diagnostic' outside functions
$ gcc --version
gcc (Gentoo 4.4.3-r2 p1.2) 4.4.3

/jhbuild/checkout/xorg/xserver/os/log.c: In function ‘LogInit’:
/jhbuild/checkout/xorg/xserver/os/log.c:199: error: #pragma GCC diagnostic not allowed inside functions
/jhbuild/checkout/xorg/xserver/os/log.c:201: warning: format not a string literal, argument types not checked
/jhbuild/checkout/xorg/xserver/os/log.c:212: error: #pragma GCC diagnostic not allowed inside functions
/jhbuild/checkout/xorg/xserver/os/log.c:214: warning: format not a string literal, argument types not checked

etc.

Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-09-18 22:28:27 -07:00
Adam Jackson 30dcc10f6c xfree86: Clean up some more alpha awareness
Since the sparse stuff is gone none of these variables get used for
anything, they're just dead side-effect-less execution.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:53 -04:00
Adam Jackson 8686463de7 xfree86: Remove xf86ReadBIOS
Not being used externally or internally anymore.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:53 -04:00
Adam Jackson 21b216ad6c int10: Port off xf86ReadBIOS
If the linux vm86 backend changes look somewhat horrifying to you,
that's because you have taste.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:53 -04:00
Adam Jackson 96c0da812a xfree86: Remove xf86LinearVidMem
The only driver even pretending to check the result is mach64 anyway.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:53 -04:00
Adam Jackson ec0e29ed5b xfree86: Remove {set,undo}WC from VidMemInfo
Now that mapMem is gone this can never actually get called.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:53 -04:00
Adam Jackson 9db2af6f75 xfree86: Remove xf86{Map,Unmap}VidMem
This API sucks.  Fortunately it's mostly unused at this point.  geode,
sis, and xgi need minor patches to use the corresponding pciaccess code,
neomagic will (more explicitly) lose its non-PCI support, and newport
will need to be ported to /dev/mem or the platform bus or something.

This should also make it pretty clear that alpha's sparse memory support
was basically not a thing anymore, very few tears shed.

Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Adam Jackson <ajax@redhat.com>
2014-09-16 11:58:52 -04:00
Adam Jackson c73929bbfc xfree86: Remove MMIO_ONB* and friends
Non-barrier-emitting MMIO writes.  They appear to be utterly unused,
burn it all down.

Reviewed-by: Julien Cristau <jcristau@debian.org>
Signed-off-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-07-28 12:19:01 -07:00
Keith Packard 60c05ce1ab config: Replace OdevAttributes linked list with struct
OdevAttributes are a fixed set of values with known types; instead of
storing them in a linked list and requiring accessor/settor functions,
replace the list header, struct OdevAttributes, with a struct that
directly contains the values. This provides for compile-time
typechecking of the values, eliminates a significant amount of code
and generally simplifies using this datatype.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2014-07-17 17:10:48 -07:00
Thierry Reding b6cc489838 xfree86: Make error message more readable
While at it also replace a tab by four spaces for consistency.

Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Tested-By: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-07-07 16:13:20 -07:00
Thierry Reding 856bb80cea xfree86: Store kernel driver name in platform device attribute
When opening a DRM device, query the version and store the driver name
as a new attribute for future reference.

Reviewed-by: Aaron Plattner <aplattner@nvidia.com>
Tested-By: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Tested-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-07-07 16:11:34 -07:00
Max Filippov dc8d068847 xtensa: add support for xtensa architecture
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-06-02 13:05:40 -07:00
Alexey Brodkin c08d2b8ccb ARC: Add support for ARC architecture
Xorg server could be built for and run on Synopsys DesignWare ARC cores.
These changes are required for successful building and execution of the server.

Both little-endian and big-endian flavors of ARC cores are supported.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Adam Jackson <ajax@redhat.com>
Reviewed-by: Egbert Eich <eich@freedesktop.org>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-05-22 16:15:21 -07:00
Peter Hutterer 15460eaed2 systemd-logind: let the logind code decided whether to close an fd
We can only request one fd per device from systemd-logind. If a fd is re-used
by the same device, releasing the fd from one device doesn't mean we can close
it. The systemd code knows when it's really released, so let it close the fd.

Test case: xorg.conf section for an input device with hotplugging enabled.
evdev detects the duplicate and closes the hotplugged device, which closes the
fd. The other instance of evdev thinks the fd is still valid so now you're
playing a double lottery. First, which client(s) will get the evdev fd?
Second, which requests will be picked up by evdev and which ones will be
picked up by the client? You'll never know, but the fun is in finding out.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2014-05-05 07:26:33 +10:00
Hans de Goede dc48bd653c systemd-logind: Monitor systemd-logind going away
When we're using server managed-fds through systemd-logind, systemd-logind
*must* keep running while we are using it, as it does things like drmSetMaster
and drmDropMaster for us on vt-switch.

On a systemd-logind restart, we cannot simply re-connect since we will then
get a different fd for the /dev/dri/card# node, and we've tied a lot of
state to the old fd. I've discussed this with the systemd people, and in the
future there may be a restart mechanism were systemd-logind passed fds from
the old logind to the new logind. But for now there answer is simply:
"Don't restart systemd-logind", and there never really is a good reason to
restart it.

So to ensure unpleasentness if people do decide to restart systemd-logind
anyways (or when it crashes), monitor logind going away and make this a fatal
error. This avoids getting a hard-hung machine on the next vt-switch and will
hopefully quickly educate users to not restart systemd-logind while they have
an X session using it active.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-26 10:05:12 +10:00
Hans de Goede 0e972b6037 systemd-logind: Correctly deal with InputDevs sharing a device-node
InputDevices may share a single device-node, this happens ie with Wacom
tablets.

This patch makes take_fd and release_fd properly deal with this, together
with the earlier patch for updating the fd in all matching xf86InputDevs
on pause / resume this completes support for such shared device-nodes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-13 13:11:52 +01:00
Hans de Goede 8d3f63dbe9 systemd-logind: Add a systemd_logind_set_input_fd_for_all_devs helper
And use it where appropriate.

Setting the fd for all matching InputDevices is necessary when we've
multiple InputDevices sharing a single device-node, such as happens with
Wacom tablets.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-13 13:11:50 +01:00
Hans de Goede 4e3d9690e1 systemd_logind_find_info_ptr_by_devnum: Move to higher inside the file
This is a preparation patch for adding support for server managed fds
for InputDevices where multiple input devices share the same device node (and
thus also their major and minor).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-13 13:11:47 +01:00
Hans de Goede ddc3888bba systemd_logind_find_info_ptr_by_devnum: Add a start argument
Modify systemd_logind_find_info_ptr_by_devnum to take a start argument, so
that it can be used to find all occurences of a devnum in an InputInfo list,
rather then just the first.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-13 13:11:38 +01:00
Hans de Goede 40e3c79a59 Remove config_odev_add_*attribute checks in various places
Note that there are more callers but those were already not doing any
error checking.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-12 08:50:05 +01:00
Hans de Goede 749d25f6f0 systemd-logind: Fix vt-enter not working when using a legacy video driver
If there is only a single non kms video device (tested with the vesa driver),
then we will never get a resume signal for a drm node, so also call vtenter
when we get a resume for an input device.

Notes:
1) vtenter checks if it is ok to do the vtenter, so if there are kms video
devices the calls for input device resumes are a nop
2) This assumes that there will always be at least one server event fd
supporting input device. Since all non legacy input-drivers will be patched
to supported server fds this seems a safe assumption.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-10 09:07:39 +01:00
Hans de Goede 687afa3f64 systemd-logind: Add delayed input device probing
With systemd-logind we cannot probe input devices while switched away, so
if we're switched away, put the pInfo on a list, and probe everything on
that list on VT-Enter.

This is using an array grown by re-alloc, rather than a xorg_list since
creating a new data-type to store a pInfo + list-entry just for this seems
overkill.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:55 +01:00
Hans de Goede cac3921989 systemd-logind: Hookup systemd-logind integration
This commits makes the changes necessary outside of the systemd-logind core
to make the server use systemd-logind managed fds for input devices and drm
nodes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:55 +01:00
Hans de Goede 82863656ec systemd-logind: Add systemd-logind "core"
This commits add the bulk of the systemd-logind integration code, but does
not hook it up yet other then calling its init and fini functions, which
don't do that much.

Note the configure bits check for udev since systemd-logind use will only be
supported in combination with udev. Besides that it only checks for dbus
since all communication with systemd-logind is happening over dbus, so
no further libs are needed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:55 +01:00
Hans de Goede a8d802cb01 OdevAttribute: Remove unowned flag from OdevAttributes head
The OdevAttributes struct should just be a head of the attributes list, and
not contain various unrelated flags. Instead add a flags field to
struct xf86_platform_device and use that.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2014-03-03 08:13:55 +01:00
Hans de Goede 10c64e8056 OdevAttribute: Add config_odev_get_attribute helper
Add a config_odev_get_attribute helper, and replace the diy looping over all
the attributes done in various places with calls to this helper.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:55 +01:00
Hans de Goede 6b79f28f5c linux: xf86OpenConsole: Don't detach from controlling tty when it is our vt
Detaching from our controlling tty makes little sense when it is the same
as the vt we're asked to run on. So automatically assume -keeptty in this case.

This is useful to do because when not running as root the server can only make
various VT related ioctls when it does not detach from the tty.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:54 +01:00
Hans de Goede 701b7ab349 linux: xf86OpenConsole remove root-rights check for keeptty option
There is no reason why keeptty cannot be used without root-rights.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2014-03-03 08:13:54 +01:00
Eric Anholt 76eedb039f xfree86: Fix a compiler warning on 64-bit.
asm/mtrr.h makes this an unsigned long on 32, but a u64 on 64.  Cast
it to a long to win.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2014-02-07 16:03:48 -08:00
Keith Packard 1ad8d12e7f Ignore a couple of format-nonliteral warnings
These are generated in code which uses sprintf as a convenient way to
construct strings from various pieces.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-01-22 19:56:31 -08:00
Keith Packard 60014a4a98 Replace 'pointer' type with 'void *'
This lets us stop using the 'pointer' typedef in Xdefs.h as 'pointer'
is used throughout the X server for other things, and having duplicate
names generates compiler warnings.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2014-01-12 10:24:11 -08:00
Keith Packard c78be3a4b7 xfree86 warning reduction
This gets the easy warnings, mostly constant string problems.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Adam Jackson <ajax@redhat.com>
2014-01-12 10:14:49 -08:00
Andreas Schwab ab4b1fb38a ARM64: Add support for aarch64
Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Mark Kettenis <kettenis@openbsd.org>
Reviewed-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
2013-11-06 16:41:49 -08:00
Peter Hutterer bbef8e46f2 Replace INCLUDES with AM_CPPFLAGS
newer automake gets quite noisy about this.
hw/xfree86/ddc/Makefile.am:7: warning:
'INCLUDES' is the old name for 'AM_CPPFLAGS' (or '*_CPPFLAGS')
and many more of these.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2013-08-06 13:08:13 +10:00
Keith Packard 53da26afb7 Merge remote-tracking branch 'whot/for-keith' 2013-04-24 10:27:19 -07:00
Bryce Harrington d16284687d xfree86: Revert workaround for drm race condition.
Revert 70739e817b and mostly revert
c31eac647a.

Further investigation shows the encountered race condition is between
lightdm and plymouth-splash, as implemented in the Ubuntu distribution
within the limitations of upstart's job coordination logic, and can (and
should) be fixed within those limiations.  Not in xserver itself.

This leaves some of the diagnostic improvements from the recent patch
series, in case others run into a similar situation.

Signed-off-by: Bryce Harrington <bryce@canonical.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
2013-04-12 10:03:29 +10:00
Peter Hutterer 131f883f85 xfree86: change a log message
This path is technically executed through config/udev, but having two
messages in the form "config/udev: Adding drm device" makes it appear as if
the udev filters are wrong and it's trying to add the same device twice. In
fact, it's only one device, only added once, but a duplicate log message.

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Dave Airlie <airlied@redhat.com>
2013-04-12 10:03:24 +10:00
Dave Airlie 22cab8a28a xf86: don't hotplug output devices while VT switched.
We don't want to hotplug output devices while we are VT switched,
as we get races between multiple X servers on the device open, and
drm device master status. This just queues device opens until we return
from VT switch.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2013-04-12 10:01:23 +10:00