This patch adds information about the new resolution-format that can
be specified by a user in weston.ini to select a CEA mode. CEA defines
timing of a video mode, which is considered as a standard for
HDMI certification and compliance testing. It defines each and every
parameter, of a video mode, like h/vactive,h/vfront h/vback etc.,
including aspect-ratio information. The drm layer, specifies the
aspect-ratio information in user-mode flag bits 19-22. For the non-CEA
modes a value of 0 is given in the aspect-ratio flag bits. Each
CEA-mode is identified by a unique, Video Identification Code (VIC).
For example, VIC=4 is 1280x720@60 aspect-ratio 16:9.
This mode will be different than a non-CEA mode 1280x720@60 0:0.
The new mode-format helps to differentiate between the CEA and
non-CEA modes, by letting user specify aspect-ratio along with other
paremeters: mode=widthxheight@rr ratio.
This helps when certification testing is done, in tests like 7-27,
the HDMI analyzer applies a particular CEA mode, and expects the
applied mode to be with exactly same timings, including the
aspect-ratio and VIC field.
Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This will allow the seat to be set by the environment as pam_systemd typically
sets the XDG_SEAT variable
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
Add a new boolean output section key "force-on". When set to true, the
output will be enabled regardless of connector status. This is the
opposite of the mode=off setting.
Forcing connectors on is useful in special circumstances: avoid output
configuration changes due to hotplug e.g. with KVM switches, or hardware
with unreliable connector status readout for example.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Ian Ray <ian.ray@ge.com>
Add a new output section key "same-as" for configuring clone mode. An
output marked "same-as" another output will be configured identically to
the other output.
The current implementation supports only CRTC sharing for clone mode.
Independent CRTC clone mode cannot be supported until output layout
logic is moved from libweston into the frontend and libweston's damage
tracking issues stemming from overlapping outputs are solved.
Quite a lot of infrastructure is needed to properly configure clone
mode. The implemented logic allows easy addition of independent CRTC
clone mode once libweston supports it. The idea is that wet_layoutput is
the item to be laid out and all weston_outputs a wet_layoutput
contains show exactly the same area of the desktop.
The configuration logic attempts to automatically fall back to creating
more weston_outputs when all heads do not work under the same
weston_output. For now, the fallback path ends with an error message.
Enabling a weston_output is bit complicated, because one needs to first
collect all relevant heads, try to attach them all to the weston_output,
and then back up head by head until enabling the weston_output succeeds.
A new weston_output is created for the left-over heads and the process
is repeated.
CRTC-sharing clone mode is the most efficient clone mode, offering
synchronized scanout timings, but it is not always supported by
hardware.
v10:
- rebased trivial conflicts in man page
- switch to gitlab issue URL
v9:
- replace weston_compositor_set_heads_changed_cb() with
weston_compositor_add_heads_changed_listener()
- remove workaround in simple_head_enable()
v6:
- Add man-page note about cms-colord.
- Don't create an output just to turn it off.
Fixes: https://gitlab.freedesktop.org/wayland/weston/issues/22
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Acked-by: Derek Foreman <derekf@osg.samsung.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Ian Ray <ian.ray@ge.com>
Allows to control the Pixman-renderer shadow framebuffer usage from
weston.ini. It defaults to enabled, and whether it is a good idea to
disable or not depends on the platform and the workload.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Reviewed-by: Ian Ray <ian.ray@ge.com>
Commit c81c4241d9 added this environment
variable. Document it.
It applies also to the fbdev-backend but that has no man page.
v2:
- Rewording by Peter Hutterer.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Developers with testing rigs having multiple graphics cards plugged in
often want to test things on a specific card. We have ways to choose a
card through seat assignments, but configuring that run by run is
awkward.
Add a command line option for opening a specific DRM device.
v2: call it --drm-device instead of --device
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Remove the option, because it is hard to use.
Drm connector ids are hard to reach for users,
and they can change when kernel or device tree
is modified.
Signed-off-by: Emre Ucan <eucan@de.adit-jv.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>
[Pekka: bump WESTON_DRM_BACKEND_CONFIG_VERSION]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Add some documentation about the DRM backend into its own man page, and
refer to it in weston(1).
Environment variable, that are reserved for backends, and currently used
only by the DRM backend, are moved to weston-drm page.
NOTE: This is a candidate for the stable branch
Signed-off-by: Pekka Paalanen <ppaalanen@gmail.com>
Ankit Nautiyal
nerdopolis
Pekka Paalanen
Ucan, Emre (ADITG/SW1)
Pekka Paalanen