7 Dec
2017
7 Dec
'17
11:11 a.m.
Quoting Alex Tu (2017-12-07 09:26:00)
Rrefer to another patch [1] on mesa to extend width/height to 16384. For issue :
- https://bugs.freedesktop.org/show_bug.cgi?id=102508
- LP: #1714178 Triple monitor display failed with Dell Dock (HiDPI)
[1] https://patchwork.freedesktop.org/patch/124918/
Signed-off-by: Alex Tu alex.tu@canonical.com
For -intel, I just used RandR to split the fb into per-crtc-pixmaps. However, Kristian has suggested another approach where we carve per-crtc-pixmaps/-fb out of the global frontbuffer, which allows us to completely get around the stride limits of scanout and have no synchronisation penalty. We still have to create new per-crtc-fb for a flip, just like with RandR but we can avoid the extra blit.
How one feeds such details through gbm into -modesetting, I have no idea. -Chris