OpenRGB 0.9 Crashing

[shadowfly]

Hello there!
OpenRGB runs fine on my PC when i start it using the dektop entry or the terminal. I can even switch to the server tab and start a local server. However, when i run openrgb --server to start OpenRGB with a local server in headless mode, then the program crashes:

Without starting server during program start:

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user#openrgb
Attempting to connect to local OpenRGB server.
Connection attempt failed
Local OpenRGB server unavailable.
Running standalone.
[i2c_smbus_linux] Failed to read i2c device PCI device ID
<h2>WARNING:</h2><p>One or more I2C/SMBus interfaces failed to initialize.</p><p>RGB DRAM modules and some motherboards' onboard RGB lighting will not be available without I2C/SMBus.</p><p>On Linux, this is usually because the i2c-dev module is not loaded.  You must load the i2c-dev module along with the correct i2c driver for your motherboard.  This is usually i2c-piix4 for AMD systems and i2c-i801 for Intel systems.</p><p>See <a href='https://help.openrgb.org/'>help.openrgb.org</a> for additional troubleshooting steps if you keep seeing this message.<br></p>

With starting server during program start:

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user#openrgb --server
Attempting to connect to local OpenRGB server.
Connection attempt failed
Local OpenRGB server unavailable.
Running standalone.
[i2c_smbus_linux] Failed to read i2c device PCI device ID
Network connection thread started on port 6742
Segmentation fault (core dumped)

gdb:

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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib64/libthread_db.so.1".
Core was generated by `openrgb --server'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007fb6e0150fb6 in libusb_control_transfer () from /usr/lib64/libusb-1.0.so.0
[Current thread is 1 (Thread 0x7fb6daa186c0 (LWP 14065))]

Until two months ago, everything worked fine for at least a year or so. I ran the openrgb --server command during startup using a systemd service. Interestingly i also run openrgb --server after returning from sleep, and there it actually starts.

• OS: Gentoo
• Wayland
• KDE Plasma 5, then upgraded to 6

[shadowfly]

I just learned how to enable debug symbols, so maybe this helps someone:

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(gdb) bt
#0  0x00007f261326ab5b in libusb_control_transfer (dev_handle=dev_handle@entry=0x7f26080647b0, bmRequestType=bmRequestType@entry=128 '\200', bRequest=bRequest@entry=6 '\006', 
    wValue=wValue@entry=768, wIndex=wIndex@entry=0, data=data@entry=0x7f260dcbf570 "", wLength=64, timeout=1000)
    at /usr/src/debug/dev-libs/libusb-1.0.27-r1/libusb-1.0.27/libusb/sync.c:111
#1  0x00007f2611ca8d1b in libusb_get_string_descriptor (length=64, data=0x7f260dcbf570 "", langid=0, desc_index=0 '\000', dev_handle=0x7f26080647b0)
    at /usr/include/libusb-1.0/libusb.h:2086
#2  is_language_supported (dev=dev@entry=0x7f26080647b0, lang=lang@entry=0) at /usr/src/debug/dev-libs/hidapi-0.13.1-r1/hidapi-hidapi-0.13.1/libusb/hid.c:380
#3  0x00007f2611caa010 in get_usb_string (dev=dev@entry=0x7f26080647b0, idx=3 '\003') at /usr/src/debug/dev-libs/hidapi-0.13.1-r1/hidapi-hidapi-0.13.1/libusb/hid.c:423
#4  0x00007f2611caa1df in create_device_info_for_device (device=device@entry=0x7f2608086a60, handle=0x7f26080647b0, desc=desc@entry=0x7f260dcbfca0, config_number=1, interface_num=7)
    at /usr/src/debug/dev-libs/hidapi-0.13.1-r1/hidapi-hidapi-0.13.1/libusb/hid.c:682
#5  0x00007f2611caa2e0 in hid_enumerate (vendor_id=vendor_id@entry=0, product_id=product_id@entry=0) at /usr/src/debug/dev-libs/hidapi-0.13.1-r1/hidapi-hidapi-0.13.1/libusb/hid.c:800
#6  0x0000559c5bc8079c in ResourceManager::DetectDevicesThreadFunction (this=0x559c5d4b61c0) at /usr/src/debug/app-misc/openrgb-0.9/OpenRGB-release_0.9/ResourceManager.cpp:1274
#7  0x0000559c5bc7ac28 in std::__invoke_impl<void, void (ResourceManager::*)(), ResourceManager*> (__f=<optimized out>, __t=<optimized out>)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13/bits/invoke.h:74
#8  0x0000559c5bc7ac43 in std::__invoke<void (ResourceManager::*)(), ResourceManager*> (__fn=<optimized out>) at /usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13/bits/invoke.h:90
#9  std::thread::_Invoker<std::tuple<void (ResourceManager::*)(), ResourceManager*> >::_M_invoke<0ul, 1ul> (this=<optimized out>)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13/bits/std_thread.h:292
#10 std::thread::_Invoker<std::tuple<void (ResourceManager::*)(), ResourceManager*> >::operator() (this=<optimized out>)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13/bits/std_thread.h:299
#11 std::thread::_State_impl<std::thread::_Invoker<std::tuple<void (ResourceManager::*)(), ResourceManager*> > >::_M_run (this=<optimized out>)
    at /usr/lib/gcc/x86_64-pc-linux-gnu/13/include/g++-v13/bits/std_thread.h:244
#12 0x00007f2611ae3203 in std::execute_native_thread_routine (__p=0x559c5d56b410) at /usr/src/debug/sys-devel/gcc-13.3.1_p20240614/gcc-13-20240614/libstdc++-v3/src/c++11/thread.cc:104
#13 0x00007f26118dff6e in start_thread (arg=<optimized out>) at pthread_create.c:447
#14 0x00007f2611941b8c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

[Banana]

I think you miss CONFIG_I2C_CHARDEV in your kernel.

Or better: Check official documentation about it
Reading this, it sounds you need the https://packages.gentoo.org/packages/sys-apps/i2c-tools package installed.

[shadowfly]

I think you miss CONFIG_I2C_CHARDEV in your kernel.

Or better: Check official documentation about it
Reading this, it sounds you need the https://packages.gentoo.org/packages/sys-apps/i2c-tools package installed.

Thanks, this seems to work!

I had not installed https://packages.gentoo.org/packages/sys-apps/i2c-tools, because when i installed OpenRGB a year (or so) ago, enabling the modules by doing

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root# modprobe i2c-dev
root# modprobe i2c-piix4 (for AMD)

and then starting OpenRGB crashed my PC.

But now i have i2c-tools installed and the modules loaded, and the PC did not crash. Even better: OpenRGB has not crashed once in the last 48h, even though OpenRGB used to crash like 10 times a day since 2 months ago.