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Aaron Plattner 617f591fc4 modesetting: Only use GAMMA_LUT if its size is 1024 
GAMMA_LUT sizes other than 1024 cause a crash during startup if the memcpy()
calls in xf86RandR12CrtcSetGamma() read past the end of the legacy X11 /
XVidMode gamma ramp.

This is a problem on Intel ICL / GEN11 platforms because they report a GAMMA_LUT
size of 262145. Since it's not clear that the modesetting driver will generate a
proper gamma ramp at that size even if xf86RandR12CrtcSetGamma() is fixed, just
disable use of GAMMA_LUT for sizes other than 1024 for now. This will cause the
modesetting driver to disable the CTM property and fall back to the legacy gamma
LUT.

Signed-off-by: Aaron Plattner <aplattner@nvidia.com>
Fixes: https://gitlab.freedesktop.org/xorg/xserver/-/issues/1193
Tested-by: Mark Herbert
 		2021-09-09 22:45:06 -07:00
.gitlab-ci ci: Install libxcvt from git 2021-08-06 11:29:29 +00:00
Xext selinux: Stop using security_context_t 2021-08-17 16:02:39 -04:00
Xi xinput: Silence a warning from gcc 11 2021-08-17 16:02:44 -04:00
composite meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
config config: Fix platform busid parsing when there is no ID_PATH prop 2021-06-25 13:24:51 +03:00
damageext More missing version checks in SProcs 2021-08-08 12:43:01 +00:00
dbe meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
dix touchevents: set the screen pointer after checking the device is enabled 2021-09-07 16:58:10 +02:00
doc meson: Implement developer documentation build 2021-08-20 10:26:07 +00:00
dri3 meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
exa exa: rename some badly named variables 2020-07-10 06:17:40 +10:00
fb meson: hide C API if Xorg is disabled (like autotools) 2021-03-11 00:22:36 +00:00
glamor glamor: Fix handling of 1-bit pixmaps 2021-09-09 23:59:06 +00:00
glx glx: Fix use after free in MakeCurrent 2021-06-21 08:39:38 +02:00
hw modesetting: Only use GAMMA_LUT if its size is 1024 2021-09-09 22:45:06 -07:00
include xwayland: add -noTouchPointerEmulation 2021-09-06 21:19:46 +00:00
m4 Add ax_pthread.m4 to m4/ 2016-05-29 19:20:51 -07:00
man Drop DMX DDX 2021-09-07 09:34:31 +00:00
mi Implement gesture processing logic 2021-05-30 13:26:42 +03:00
miext miext: Remove if check which is always true 2021-03-26 09:02:14 +00:00
os Don't hardcode fps for fake screen 2021-07-29 08:09:00 +00:00
present Don't hardcode fps for fake screen 2021-07-29 08:09:00 +00:00
pseudoramiX Unvalidated lengths 2017-10-10 23:33:34 +02:00
randr present: fallback get_crtc to return crtc belonging to screen with present extension 2021-07-20 08:10:46 +02:00
record Fix XRecordRegisterClients() Integer underflow 2020-08-25 17:01:29 +02:00
render xserver: fix RGB mask handling 2021-04-16 14:40:49 +00:00
test xfree86: Use libxcvt 2021-08-06 11:29:29 +00:00
xfixes XFixes: add version check for byteswapped clients 2021-08-06 11:12:40 -04:00
xkb xkb: Silence a warning from gcc 11 2021-08-17 16:04:40 -04:00
.appveyor.yml Drop DMX DDX 2021-09-07 09:34:31 +00:00
.dir-locals.el .dir-locals.el: Add missing final newline 2019-10-01 17:05:28 +00:00
.gitignore .gitignore: Add new autotools file 'test-driver' 2014-04-21 13:41:42 -07:00
.gitlab-ci.yml ci: Install libxcvt from git 2021-08-06 11:29:29 +00:00
.travis.yml travis: Add OSX meson build to matrix 2019-05-02 15:42:58 +00:00
COPYING modesetting: Merge modesetting's COPYING into the xserver's. 2014-09-15 12:46:02 -07:00
Makefile.am Drop DMX DDX 2021-09-07 09:34:31 +00:00
README.md Fix spelling/wording issues 2020-07-05 13:07:33 -07:00
autogen.sh autogen: Set a default subject prefix for patches 2016-02-08 17:41:38 -05:00
configure.ac Drop DMX DDX 2021-09-07 09:34:31 +00:00
devbook.am doc: Create a script to filter xmlto output 2015-01-05 14:24:06 -08:00
docbook.am docbook.am: embed css styles inside the HTML HEAD element 2011-09-21 14:07:49 -07:00
manpages.am man: Fix automake seddery 2018-05-08 12:15:30 -04:00
meson.build meson: Implement developer documentation build 2021-08-20 10:26:07 +00:00
meson_options.txt Drop DMX DDX 2021-09-07 09:34:31 +00:00
xorg-server.m4 xorg-server.m4: just all cflags instead of just sdkdir 2018-09-20 20:12:24 +01:00
xorg-server.pc.in xfree86: link modules against Xorg symbols on Cygwin 2012-04-05 21:57:07 -05:00
xserver.ent.in doc: relocate xserver.ent in the package root directory 2011-05-14 11:22:26 -07:00

README.md

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 primary 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:

https://www.freedesktop.org/wiki/CodeOfConduct