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FedeDP / Clightd

A linux bus interface that lets you change screen brightness, compute captured webcam frames brightness and change screen temperature.
GNU General Public License v3.0
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Core dump on external screen dpms off #116

Open PanAeon opened 2 months ago

PanAeon commented 2 months ago

Hi, when my external screen turns off the clightd spams dmesg with segfaults and restarts. After the screen turns on it's no longer available.

Journalctl log:

Aug 06 13:22:16 nixos systemd[1]: Starting Bus service to manage various screen related properties (gamma, dpms, backlight)...
Aug 06 13:22:16 nixos systemd[1]: Started Bus service to manage various screen related properties (gamma, dpms, backlight).
Aug 06 13:22:16 nixos clightd[2131299]: ddca_get_display_info_list2 called before ddca_init2() or ddca_init()
Aug 06 13:22:16 nixos libddcutil[2131299]: Initializing libddcutil.  ddcutil version: 2.1.4, shared library: /nix/store/kav7v0aiwinkhy254izxrbj2128av414-ddcutil-2.1.4/lib/libddcutil.so.5.1.2
Aug 06 13:22:18 nixos libddcutil[2131299]: busno=7, sleep-multiplier =  1.00. Testing for supported feature 0x10 returned Error_Info[DDCRC_RETRIES in ddc_write_read_with_retry, causes: DDCRC_DDC_DATA(10)]
Aug 06 13:22:18 nixos libddcutil[2131299]: Library initialization complete.
Aug 06 13:22:41 nixos clightd[2131299]: Failed to copy frame
Aug 06 13:22:41 nixos kernel: clightd[2131299]: segfault at 8 ip 000000000041379e sp 00007ffd27247730 error 4 in clightd[406000+e000] likely on CPU 0 (core 0, socket 0)
Aug 06 13:22:41 nixos kernel: Code: 4d 85 e4 74 21 4c 89 e7 e8 4f 33 ff ff 41 b8 01 00 00 00 31 d2 4c 89 e7 89 c1 be 01 00 00 00 31 c0 e8 36 2e ff ff 48 8b 7b 10 <48> 8b 47 08 48 85 c0 74 14 48 8b 53 18 48 89 c7 48 63 72 10 e8 79
Aug 06 13:22:41 nixos systemd[1]: Started Process Core Dump (PID 2131410/UID 0).
Aug 06 13:22:41 nixos systemd-coredump[2131411]: [🡕] Process 2131299 (clightd) of user 0 dumped core.

                                                 Module libpcre2-8.so.0 without build-id.
                                                 Module libXdmcp.so.6 without build-id.
                                                 Module libXau.so.6 without build-id.
                                                 Module libjansson.so.4 without build-id.
                                                 Module libz.so.1 without build-id.
                                                 Module libffi.so.8 without build-id.
                                                 Module libXrender.so.1 without build-id.
                                                 Module libxcb.so.1 without build-id.
                                                 Module libcap.so.2 without build-id.
                                                 Module libusb-1.0.so.0 without build-id.
                                                 Module libddcutil.so.5 without build-id.
                                                 Module libXext.so.6 without build-id.
                                                 Module libdrm.so.2 without build-id.
                                                 Module libXrandr.so.2 without build-id.
                                                 Module libX11.so.6 without build-id.
                                                 Module libsystemd.so.0 without build-id.
                                                 Module libjpeg.so.62 without build-id.
                                                 Module libmodule.so.5 without build-id.
                                                 Module libudev.so.1 without build-id.
                                                 Module clightd without build-id.
                                                 Stack trace of thread 2131299:
                                                 Module libmodule.so.5 without build-id.
                                                 Module libudev.so.1 without build-id.
                                                 Module clightd without build-id.
                                                 Stack trace of thread 2131299:
                                                 #0  0x000000000041379e get_frame_brightness (clightd + 0x1379e)
                                                 #1  0x000000000040d016 method_getbrightness (clightd + 0xd016)
                                                 #2  0x00007fd0bd063887 object_find_and_run (libsystemd.so.0 + 0x3a887)
                                                 #3  0x00007fd0bd064efb bus_process_object (libsystemd.so.0 + 0x3befb)
                                                 #4  0x00007fd0bd079728 bus_process_internal (libsystemd.so.0 + 0x50728)
                                                 #5  0x00000000004099bb receive (clightd + 0x99bb)
                                                 #6  0x00007fd0bd20eab3 run_pubsub_cb (libmodule.so.5 + 0x5ab3)
                                                 #7  0x00007fd0bd20e171 recv_events (libmodule.so.5 + 0x5171)
                                                 #8  0x00007fd0bd20e3fd modules_ctx_loop_events (libmodule.so.5 + 0x53fd)
                                                 #9  0x00000000004071ff main (clightd + 0x71ff)
                                                 #10 0x00007fd0bcac310e __libc_start_call_main (libc.so.6 + 0x2a10e)
                                                 #11 0x00007fd0bcac31c9 __libc_start_main@@GLIBC_2.34 (libc.so.6 + 0x2a1c9)
                                                 #12 0x0000000000407a25 _start (clightd + 0x7a25)

                                                 Stack trace of thread 2131301:
                                                 #0  0x00007fd0bcb9562f __poll (libc.so.6 + 0xfc62f)
                                                 #1  0x00007fd0bcd7cb3f linux_udev_event_thread_main (libusb-1.0.so.0 + 0x13b3f)
                                                 #2  0x00007fd0bcb27272 start_thread (libc.so.6 + 0x8e272)
                                                 #3  0x00007fd0bcba2dec __clone3 (libc.so.6 + 0x109dec)
                                                 ELF object binary architecture: AMD x86-64
Aug 06 13:22:41 nixos systemd[1]: clightd.service: Main process exited, code=dumped, status=11/SEGV
Aug 06 13:22:41 nixos systemd[1]: clightd.service: Failed with result 'core-dump'.
Aug 06 13:22:41 nixos systemd[1]: systemd-coredump@4565-2131410-0.service: Deactivated successfully.
Aug 06 13:22:46 nixos systemd[1]: clightd.service: Scheduled restart job, restart counter is at 10.