[Bug 1910566] [NEW] Problem with the CH341 driver in Ubuntu 20.04
You have been subscribed to a public bug: I run into this problem trying to program an ESP8266 board, which uses the CH341 chip in the programming interface as a USB-to-Serial interface. The problem appeared after an upgrade from Ubuntu 19.10 to 20.04 (that I carried out one week ago). This is the kernel I am using: === $ uname -r 5.4.0-58-generic === When I connect the ESP8266 board (a Wemos D1 mini) to the USB there is no activity on the syslog (or dmesg), and the kernel module is not loaded. In fact I do not see the /dev/ttyACM0 device in the /dev directory and no useful device appears in the Arduino GUI. I have found the module in the kernel tree but, even forcing the installation, nothing happens: === augusto@Legion:~$ ls /usr/lib/modules/5.4.0-58-generic/kernel/drivers/usb/serial/ch* /usr/lib/modules/5.4.0-58-generic/kernel/drivers/usb/serial/ch341.ko augusto@Legion:~$ sudo modprobe ch341 [sudo] password di augusto: augusto@Legion:~$ lsusb Bus 002 Device 002: ID 05e3:0626 Genesys Logic, Inc. USB3.1 Hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 13d3:56a6 IMC Networks Integrated Camera Bus 001 Device 005: ID 0cf3:e500 Qualcomm Atheros Communications Bus 001 Device 006: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 001 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub augusto@Legion:~$ lsmod | grep ch34 ch341 20480 0 usbserial 53248 1 ch341 === Without this module it is impossible to work with a relevant number of SBC devices, besides the named Wemos D1 Mini. Trying to solve the problem I also downloaded and installed the module source from https://github.com/juliagoda/CH341SER and compiled on my PC, after removing the "secure boot" feature. I recovered the module installation trace from the syslog files in the previous installation Ubuntu 19.10. The kernel version was probably 5.3.0-64-generic. As said above, at that time the module was operating properly: you notice that the module is loaded and later used to update a sketch: == Dec 30 12:22:43 Legion kernel: [2354065.515635] usb 1-3: new full-speed USB device number 30 using xhci_hcd Dec 30 12:22:43 Legion kernel: [2354065.664692] usb 1-3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64 Dec 30 12:22:43 Legion kernel: [2354065.664697] usb 1-3: New USB device strings: Mfr=0, Product=2, SerialNumber=0 Dec 30 12:22:43 Legion kernel: [2354065.664701] usb 1-3: Product: USB Serial Dec 30 12:22:43 Legion kernel: [2354065.666768] ch341 1-3:1.0: ch341-uart converter detected Dec 30 12:22:43 Legion kernel: [2354065.667695] usb 1-3: ch341-uart converter now attached to ttyUSB1 Dec 30 12:22:43 Legion mtp-probe: checking bus 1, device 30: "/sys/devices/pci:00/:00:14.0/usb1/1-3" Dec 30 12:22:43 Legion mtp-probe: bus: 1, device: 30 was not an MTP device Dec 30 12:22:43 Legion snapd[15280]: hotplug.go:199: hotplug device add event ignored, enable experimental.hotplug Dec 30 12:22:43 Legion mtp-probe: checking bus 1, device 30: "/sys/devices/pci:00/:00:14.0/usb1/1-3" Dec 30 12:22:43 Legion mtp-probe: bus: 1, device: 30 was not an MTP device Dec 30 12:22:45 Legion ModemManager[1198]: Couldn't check support for device '/sys/devices/pci:00/:00:14.0/usb1/1-3': not supported by any plugin Dec 30 12:22:46 Legion systemd[6301]: tracker-extract.service: Succeeded. Dec 30 12:22:46 Legion dbus-daemon[1183]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.52054' (uid=1000 pid=18287 comm="/usr/bin/gnome-shell " label="unconfined") Dec 30 12:22:46 Legion systemd[1]: Starting Fingerprint Authentication Daemon... Dec 30 12:22:46 Legion dbus-daemon[1183]: [system] Successfully activated service 'net.reactivated.Fprint' Dec 30 12:22:46 Legion systemd[1]: Started Fingerprint Authentication Daemon. Dec 30 12:22:50 Legion NetworkManager[1193]: [1609327370.5477] agent-manager: req[0x5574cc0e7540, :1.52054/org.gnome.Shell.NetworkAgent/1000]: agent registered Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.87/org/ayatana/NotificationItem/software_update_available Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.82/org/ayatana/NotificationItem/dropbox_client_18678 Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.110/org/ayatana/NotificationItem/whatsdesk1 Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-FATAL] unable to update overlay icon Dec 30 12:22:50 Legion gnome-shell[18287]: message repeated 5 times: [ [AppIndicatorSupport-FATAL] unable to update overlay icon] Dec 30 12:22:50 Legion gnome-shell[18287]: Couldn’t parse user-home.desktop as a desktop file,
[Bug 1910566] [NEW] Problem with the CH341 driver in Ubuntu 20.04
Public bug reported: I run into this problem trying to program an ESP8266 board, which uses the CH341 chip in the programming interface as a USB-to-Serial interface. The problem appeared after an upgrade from Ubuntu 19.10 to 20.04 (that I carried out one week ago). This is the kernel I am using: === $ uname -r 5.4.0-58-generic === When I connect the ESP8266 board (a Wemos D1 mini) to the USB there is no activity on the syslog (or dmesg), and the kernel module is not loaded. In fact I do not see the /dev/ttyACM0 device in the /dev directory and no useful device appears in the Arduino GUI. I have found the module in the kernel tree but, even forcing the installation, nothing happens: === augusto@Legion:~$ ls /usr/lib/modules/5.4.0-58-generic/kernel/drivers/usb/serial/ch* /usr/lib/modules/5.4.0-58-generic/kernel/drivers/usb/serial/ch341.ko augusto@Legion:~$ sudo modprobe ch341 [sudo] password di augusto: augusto@Legion:~$ lsusb Bus 002 Device 002: ID 05e3:0626 Genesys Logic, Inc. USB3.1 Hub Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 13d3:56a6 IMC Networks Integrated Camera Bus 001 Device 005: ID 0cf3:e500 Qualcomm Atheros Communications Bus 001 Device 006: ID 046d:c517 Logitech, Inc. LX710 Cordless Desktop Laser Bus 001 Device 004: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub augusto@Legion:~$ lsmod | grep ch34 ch341 20480 0 usbserial 53248 1 ch341 === Without this module it is impossible to work with a relevant number of SBC devices, besides the named Wemos D1 Mini. Trying to solve the problem I also downloaded and installed the module source from https://github.com/juliagoda/CH341SER and compiled on my PC, after removing the "secure boot" feature. I recovered the module installation trace from the syslog files in the previous installation Ubuntu 19.10. The kernel version was probably 5.3.0-64-generic. As said above, at that time the module was operating properly: you notice that the module is loaded and later used to update a sketch: == Dec 30 12:22:43 Legion kernel: [2354065.515635] usb 1-3: new full-speed USB device number 30 using xhci_hcd Dec 30 12:22:43 Legion kernel: [2354065.664692] usb 1-3: New USB device found, idVendor=1a86, idProduct=7523, bcdDevice= 2.64 Dec 30 12:22:43 Legion kernel: [2354065.664697] usb 1-3: New USB device strings: Mfr=0, Product=2, SerialNumber=0 Dec 30 12:22:43 Legion kernel: [2354065.664701] usb 1-3: Product: USB Serial Dec 30 12:22:43 Legion kernel: [2354065.666768] ch341 1-3:1.0: ch341-uart converter detected Dec 30 12:22:43 Legion kernel: [2354065.667695] usb 1-3: ch341-uart converter now attached to ttyUSB1 Dec 30 12:22:43 Legion mtp-probe: checking bus 1, device 30: "/sys/devices/pci:00/:00:14.0/usb1/1-3" Dec 30 12:22:43 Legion mtp-probe: bus: 1, device: 30 was not an MTP device Dec 30 12:22:43 Legion snapd[15280]: hotplug.go:199: hotplug device add event ignored, enable experimental.hotplug Dec 30 12:22:43 Legion mtp-probe: checking bus 1, device 30: "/sys/devices/pci:00/:00:14.0/usb1/1-3" Dec 30 12:22:43 Legion mtp-probe: bus: 1, device: 30 was not an MTP device Dec 30 12:22:45 Legion ModemManager[1198]: Couldn't check support for device '/sys/devices/pci:00/:00:14.0/usb1/1-3': not supported by any plugin Dec 30 12:22:46 Legion systemd[6301]: tracker-extract.service: Succeeded. Dec 30 12:22:46 Legion dbus-daemon[1183]: [system] Activating via systemd: service name='net.reactivated.Fprint' unit='fprintd.service' requested by ':1.52054' (uid=1000 pid=18287 comm="/usr/bin/gnome-shell " label="unconfined") Dec 30 12:22:46 Legion systemd[1]: Starting Fingerprint Authentication Daemon... Dec 30 12:22:46 Legion dbus-daemon[1183]: [system] Successfully activated service 'net.reactivated.Fprint' Dec 30 12:22:46 Legion systemd[1]: Started Fingerprint Authentication Daemon. Dec 30 12:22:50 Legion NetworkManager[1193]: [1609327370.5477] agent-manager: req[0x5574cc0e7540, :1.52054/org.gnome.Shell.NetworkAgent/1000]: agent registered Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.87/org/ayatana/NotificationItem/software_update_available Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.82/org/ayatana/NotificationItem/dropbox_client_18678 Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-DEBUG] Registering StatusNotifierItem :1.110/org/ayatana/NotificationItem/whatsdesk1 Dec 30 12:22:50 Legion gnome-shell[18287]: [AppIndicatorSupport-FATAL] unable to update overlay icon Dec 30 12:22:50 Legion gnome-shell[18287]: message repeated 5 times: [ [AppIndicatorSupport-FATAL] unable to update overlay icon] Dec 30 12:22:50 Legion gnome-shell[18287]: Couldn’t parse user-home.desktop as a desktop file, will treat it as a
