Public bug reported: In Bionic azure-edge proposed kernel 4.18.0-1008 we're observing an issue that got carried from upstream. This is the first version we checked specifically for this issue, we don't have yet a good/bad proposed comparison set of versions.
linux-next-5.0.0-9673b4a-20012019 does not have this issue <- daily upstream linux-next linux-next-4.20.0-6a1d293-27122018 has the issue <- all 4.1x/4.2x series from upstream have this problem. This behavior can be seen only on Hyper-V, as it must use the VM console UI: - boot the above kernels. - try to login with username and password. - After you input the username and press Enter in the Hyper-V console, another Enter (newline) is automatically received by the console, making it impossible to input the password. Afterward, the console behaves like a series of newlines are received and it resets after a while, presenting again the linux user login. Repro rates: - 100% on WS2019 - on WS2016 depending on situation it might not be visible 100%. Problem does not exist for Azure, it's specific to Hyper-V VM console only. ** Affects: linux-azure (Ubuntu) Importance: Undecided Status: New ** Tags: hyperv -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-azure in Ubuntu. https://bugs.launchpad.net/bugs/1813026 Title: [Hyper-V] VM console orphan newline input during login Status in linux-azure package in Ubuntu: New Bug description: In Bionic azure-edge proposed kernel 4.18.0-1008 we're observing an issue that got carried from upstream. This is the first version we checked specifically for this issue, we don't have yet a good/bad proposed comparison set of versions. linux-next-5.0.0-9673b4a-20012019 does not have this issue <- daily upstream linux-next linux-next-4.20.0-6a1d293-27122018 has the issue <- all 4.1x/4.2x series from upstream have this problem. This behavior can be seen only on Hyper-V, as it must use the VM console UI: - boot the above kernels. - try to login with username and password. - After you input the username and press Enter in the Hyper-V console, another Enter (newline) is automatically received by the console, making it impossible to input the password. Afterward, the console behaves like a series of newlines are received and it resets after a while, presenting again the linux user login. Repro rates: - 100% on WS2019 - on WS2016 depending on situation it might not be visible 100%. Problem does not exist for Azure, it's specific to Hyper-V VM console only. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-azure/+bug/1813026/+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