frederik
/
xserver
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

modesetting: allow enabling atomic mode. 

The Linux kernel has long had code preventing Xorg from using atomic
modesetting due to various bugs in it's implementation, some of these
issues have since been fixed but some issues remain namely with DPMS
and other smaller things, we should allow users to opt-in by setting
"Option 'Atomic' 'True'"

This shouldn't cause any issues as the feature remains disabled by default.

Co-authored-by: Daniel Abrecht <public@danielabrecht.ch>
Signed-off-by: notbabaisyou <though-went-some-simple@proton.me>
This commit is contained in:
notbabaisyou 2025-06-15 20:15:37 +02:00 committed by Enrico Weigelt, metux IT consult
parent 25c002c54b
commit 461411c798
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
hw/xfree86/drivers/modesetting/driver.c
View File

@ -1306,7 +1306,7 @@ PreInit(ScrnInfoPtr pScrn, int flags)
ms->atomic_modeset_capable = (ret == 0);
if (xf86ReturnOptValBool(ms->drmmode.Options, OPTION_ATOMIC, FALSE)) {
ret = drmSetClientCap(ms->fd, DRM_CLIENT_CAP_ATOMIC, 1);
ret = drmSetClientCap(ms->fd, DRM_CLIENT_CAP_ATOMIC, 2);
ms->atomic_modeset = (ret == 0);
if (!ms->atomic_modeset)
xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "Atomic modesetting not supported\n");