backend/drm: return true on test if no crtc
This should fix the following backtrace, seen on my desktop with one
output disabled:
#0 atomic_crtc_commit (conn=0x270f5c0, state=0x270f6d0, flags=0, test_only=<optimized out>) at ../backend/drm/atomic.c:178
drm = 0x1ae9c10
output = 0x270f5c0
crtc = 0x0
modeset = false
active = false
mode_id = 43989232
gamma_lut = 0
prev_vrr_enabled = <optimized out>
vrr_enabled = <optimized out>
atom = {req = 0x270f5c0, failed = 48}
ok = <optimized out>
#1 0x00007f1104f33128 in drm_crtc_commit (conn=conn@entry=0x270f5c0, state=state@entry=0x270f6d0, flags=flags@entry=0, test_only=test_only@entry=true) at ../backend/drm/drm.c:339
__PRETTY_FUNCTION__ = "drm_crtc_commit"
drm = <optimized out>
crtc = 0x0
ok = <optimized out>
#2 0x00007f1104f34e6c in drm_connector_test (output=output@entry=0x270f5c0) at ../backend/drm/drm.c:488
conn = 0x270f5c0
unsupported = <optimized out>
#3 0x00007f1104f35424 in drm_connector_commit (output=0x270f5c0) at ../backend/drm/drm.c:578
conn = 0x270f5c0
#4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837
now = {tv_sec = 7732, tv_nsec = 623813006}
pre_event = {output = 0x270f5c0, when = 0x7ffecc1be570}
back_buffer = 0x0
scale_updated = <optimized out>
geometry_updated = <optimized out>
committed = <optimized out>
event = {output = 0x0, committed = 4401048, when = 0x29f38f0}
#5 0x0000000000433047 in apply_output_config (oc=oc@entry=0x29f38f0, output=output@entry=0x2710720) at ../sway/config/output.c:431
wlr_output = 0x270f5c0
output_box = <optimized out>
#6 0x0000000000433aaf in apply_output_config_to_outputs (oc=0x2308400) at ../sway/config/output.c:649
current = 0x29f38f0
name = <optimized out>
wildcard = true
id = "Dell Inc. DELL U2410 F525M9AK0MML\000\060\060\060ACD7\000\000\000\000\000\000\000\220\063\240\002\000\000\000\000L5C\000\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\377\377\377\377\000\000\000\000\355\240E\000\000\000\000\000\377\377\377\377\000\000\000\000@\206+\002\000\000\000\000`\260.\002\000\000\000"
sway_output = 0x2710720
tmp = 0x2242030
seat = <optimized out>
#7 0x000000000043df6b in cmd_output (argc=<optimized out>, argv=0x2a03390) at ../sway/commands/output.c:108
error = <optimized out>
output = <optimized out>
background = false
#8 0x0000000000410304 in execute_command (_exec=_exec@entry=0x2975d20 "output * dpms off", seat=0x22a3280, seat@entry=0x0, con=con@entry=0x0) at ../sway/commands.c:291
res = <optimized out>
argc = 4
argv = 0x2a03370
handler = 0x479230 <handlers+560>
cmd = <optimized out>
matched_delim = 0 '\000'
containers = 0x0
using_criteria = false
__PRETTY_FUNCTION__ = "execute_command"
exec = 0x28f63c0 "output * dpms off"
head = 0x0
res_list = 0x2a2e9d0
#9 0x0000000000418b65 in ipc_client_handle_command (client=client@entry=0x2a6ac80, payload_length=<optimized out>, payload_type=IPC_COMMAND) at ../sway/ipc-server.c:645
line = <optimized out>
res_list = <optimized out>
json = <optimized out>
length = <optimized out>
__PRETTY_FUNCTION__ = "ipc_client_handle_command"
buf = 0x2975d20 "output * dpms off"
#10 0x000000000041964c in ipc_client_handle_readable (client_fd=<optimized out>, mask=<optimized out>, data=0x2a6ac80) at ../sway/ipc-server.c:267
pending_length = <optimized out>
pending_type = <optimized out>
client = 0x2a6ac80
read_available = 31
buf = "i3-ipc\021\000\000\000\000\000\000"
received = 14
#11 0x00007f1104fc3492 in wl_event_loop_dispatch () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0
No symbol table info available.
#12 0x00007f1104fc1135 in wl_display_run () from /nix/store/ridk7k2ka6dbk4ly7qqjgmc523s4fj89-wayland-1.19.0/lib/libwayland-server.so.0
No symbol table info available.
#13 0x000000000041ac10 in server_run (server=server@entry=0x47b0c0 <server>) at ../sway/server.c:261
No locals.
#14 0x000000000041a3fc in main (argc=<optimized out>, argv=0x7ffecc1bec68) at ../sway/main.c:395
verbose = 0
debug = 0
validate = 0
allow_unsupported_gpu = 0
long_options = {{name = 0x45b516 "help", has_arg = 0, flag = 0x0, val = 104}, {name = 0x45ee69 "config", has_arg = 1, flag = 0x0, val = 99}, {name = 0x45b51b "validate", has_arg = 0, flag = 0x0, val = 67}, {
name = 0x45b524 "debug", has_arg = 0, flag = 0x0, val = 100}, {name = 0x45b3ac "version", has_arg = 0, flag = 0x0, val = 118}, {name = 0x45a55c "verbose", has_arg = 0, flag = 0x0, val = 86}, {name = 0x45b52a "get-socketpath",
has_arg = 0, flag = 0x0, val = 112}, {name = 0x45b539 "unsupported-gpu", has_arg = 0, flag = 0x0, val = 117}, {name = 0x45b549 "my-next-gpu-wont-be-nvidia", has_arg = 0, flag = 0x0, val = 117}, {name = 0x0, has_arg = 0,
flag = 0x0, val = 0}}
config_path = 0x0
usage = 0x45b830 "Usage: sway [options] [command]\n\n -h, --help", ' ' <repeats 13 times>, "Show help message and quit.\n -c, --config <config> Specify a config file.\n -C, --validate Check the validity of the config file, th"...
c = <optimized out>
where the second output is not enabled:
(gdb) frame 4
#4 0x00007f1104f600b7 in wlr_output_commit (output=output@entry=0x270f5c0) at ../types/wlr_output.c:837
837 in ../types/wlr_output.c
(gdb) p output->enabled
$3 = false
(gdb)
The culprit being that since 604674dc54 we
always try to perform a commit, even on a disabled output.
Rouven Czerwinski
59b292b691