In debugging the frame buffer resize code, I needed to see what the server
was doing to the fence registers, so I added this debug code. Seems useful
enough to include it.
Signed-off-by: Keith Packard <keithp@keithp.com>
RandR 1.3 panning support can use the regular mode setting interface, but
that's really slow. Providing set_origin makes it nice and snappy.
Signed-off-by: Keith Packard <keithp@keithp.com>
This one trys to use lid status for LVDS detect,
which works when internal panel is not used as primary
display alone, or there's no internal panel at all.
ACPI button driver's lid state interface is preferred,
and SWF state is also checked if ACPI method failed.
Which is just being tidy. We initially were looking at this code
path due to a report of a crash on server shutdown which started
after this unreference call was added. Setting this to NULL
apparently didn't avoid the crash, but it's a good thing to do
regardless.
Without this change, setting LVDSFixedMode to false is not effective
as i830_bios_init calls i830_parse_panel_data which in turns sets
a fixed_mode. To fix this we still call parse_panel_data to set
the various lvds_options but we return before setting fixed_mode.
This avoids mapping a buffer object which is being referenced
by a batch that has already been flushed, (which is a terribly
expensive operation).
On my machine this brings the performance of x11perf -aa10text
from 85k back to 150k, (where it was before a recent kernel
upgrade). Also, before this patch, when I used my X server
actively performance would drop as low as 15k---hopefully that
bug is gone with this change.
EXA wouldn't create pixmaps for under-8bpp, but UXA does. Fixes
mis-rendering in xfwm, evolution message compose, firefox link
drag'n'drop, and I'm sure more. Big thanks to Pierre Willenbrock for
debugging the issue!
Bug #18050
The origin check for bring back max value for '0'
backlight level is ok for legacy or combo control method
as '0' mostly doesn't act in ideal lowest level. But it
breaks in using kernel control method which should provide
a reasonable backlight range.
This is tested fine on T61 with thinkpad_acpi module.
We can get a case with gnome-terminal + links, where we get two arrays
of glyphs all with 0 width and 0 heights in them. If this happens
we manage to get to this case without any buffer setup and segfault.
(cherry picked from commit 717c7492a0f6ba3fb3eabda33515881eef314155)
This results in allocation overhead for small (8x8-128x128 or so) pixmaps with
DRI2, but we're interested in looking at tiling them in general in the near
future, anyway.
Pierre Willenbrock
Keith Packard
Zou Nan hai
Zhenyu Wang
Bryce Harrington
Carl Worth
Kristian Høgsberg
Eric Anholt
Julien Cristau
Dave Airlie
Paulo Cesar Pereira de Andrade
Robert Lowery