7a44e8d400
Believe it or not, somehow we've never done this in legacy mode! We currently simply change the DPMS property on the CRTC's output's respective DRM connector, but this means that we're just setting the CRTC as inactive-not disabled. From the perspective of the kernel, this means that any shared resources used by the CRTC are still in use. This can cause problems for drivers that are not yet fully atomic, despite using the atomic helpers internally. For instance: if CRTC-1 and CRTC-2 are still enabled and use shared resources within the kernel (an MST topology, for example), and then userspace tries to go enable CRTC-3 on the same topology this might suddenly fail if CRTC-3 needs the shared resources CRTC-1 and CRTC-2 are using. While I don't know of any situations in the mainline kernel that actually trigger this, future plans for reworking the atomic check of MST drivers are absolutely going to make this into a real issue (they already are in my WIP branches for the kernel). So: actually do the right thing here and disable CRTCs when they're not going to be used anymore, even in legacy mode. Signed-off-by: Lyude Paul <lyude@redhat.com> |
||
|---|---|---|
| composite | ||
| config | ||
| damageext | ||
| dbe | ||
| dix | ||
| doc | ||
| dri3 | ||
| exa | ||
| fb | ||
| glamor | ||
| glx | ||
| hw | ||
| include | ||
| m4 | ||
| man | ||
| mi | ||
| miext | ||
| os | ||
| present | ||
| pseudoramiX | ||
| randr | ||
| record | ||
| render | ||
| test | ||
| Xext | ||
| xfixes | ||
| Xi | ||
| xkb | ||
| .appveyor.yml | ||
| .dir-locals.el | ||
| .gitignore | ||
| .gitlab-ci.yml | ||
| .travis.yml | ||
| autogen.sh | ||
| configure.ac | ||
| COPYING | ||
| devbook.am | ||
| docbook.am | ||
| Makefile.am | ||
| manpages.am | ||
| meson_options.txt | ||
| meson.build | ||
| README.md | ||
| xorg-server.m4 | ||
| xorg-server.pc.in | ||
| xserver.ent.in | ||
X Server
The X server accepts requests from client applications to create windows, which are (normally rectangular) "virtual screens" that the client program can draw into.
Windows are then composed on the actual screen by the X server (or by a separate composite manager) as directed by the window manager, which usually communicates with the user via graphical controls such as buttons and draggable titlebars and borders.
For a comprehensive overview of X Server and X Window System, consult the following article: https://en.wikipedia.org/wiki/X_server
All questions regarding this software should be directed at the Xorg mailing list:
https://lists.freedesktop.org/mailman/listinfo/xorg
The master development code repository can be found at:
https://gitlab.freedesktop.org/xorg/xserver
For patch submission instructions, see:
https://www.x.org/wiki/Development/Documentation/SubmittingPatches
As with other projects hosted on freedesktop.org, X.Org follows its Code of Conduct, based on the Contributor Covenant. Please conduct yourself in a respectful and civilized manner when using the above mailing lists, bug trackers, etc: