Public bug reported: The modemmanager debian package in focal was recently upgraded to 1.18 (apparently the jammy version was backported). This version has broken some Qualcomm modems as it start to require the Qualcomm IPC Router for them, which drivers are not enabled in Ubuntu kernel 5.4. To fix this we need these options enabled in the focal kernel:
CONFIG_QRTR=m CONFIG_QRTR_SMD=m CONFIG_QRTR_TUN=m CONFIG_QRTR_MHI=m The options are already enabled in more modern Ubuntu kernel, i.e. 5.17. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1998194 Title: Please add support for Qualcomm IPC Router in 5.4 focal kernel Status in linux package in Ubuntu: New Bug description: The modemmanager debian package in focal was recently upgraded to 1.18 (apparently the jammy version was backported). This version has broken some Qualcomm modems as it start to require the Qualcomm IPC Router for them, which drivers are not enabled in Ubuntu kernel 5.4. To fix this we need these options enabled in the focal kernel: CONFIG_QRTR=m CONFIG_QRTR_SMD=m CONFIG_QRTR_TUN=m CONFIG_QRTR_MHI=m The options are already enabled in more modern Ubuntu kernel, i.e. 5.17. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1998194/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp