Public bug reported: When booting the tpm chip times out and is not showing up in /dev. Relevant Output of "dmesg | grep -i tpm": [ 2.996408] tpm tpm0: Operation Timed out [ 6.202396] tpm tpm0: Operation Timed out [ 6.202401] tpm_crb: probe of MSFT0101:00 failed with error -62 [ 6.255296] ima: No TPM chip found, activating TPM-bypass! I confirmed that it is the kernel by switching to 6.5.0-45-generic and everything worked. Ubuntu release: Ubuntu 22.04.4 LTS linux-hwe-6.8-headers-6.8.0-40 version: 6.8.0-40.40~22.04.3 linux-hwe-6.8-tools-6.8.0-40 version: 6.8.0-40.40~22.04.3 linux-image-6.8.0-40-generic version: 6.8.0-40.40~22.04.3
Expected behavior: tpm working What happened: tpm timed out and is not showing up, so it can't be used ** Affects: linux-hwe-6.8 (Ubuntu) Importance: Undecided Status: New ** Description changed: When booting the tpm chip times out and is not showing up in /dev. Relevant Output of "dmesg | grep -i tpm": [ 2.996408] tpm tpm0: Operation Timed out [ 6.202396] tpm tpm0: Operation Timed out [ 6.202401] tpm_crb: probe of MSFT0101:00 failed with error -62 [ 6.255296] ima: No TPM chip found, activating TPM-bypass! I confirmed that it is the kernel by switching to 6.5.0-45-generic and everything worked. Ubuntu release: Ubuntu 22.04.4 LTS linux-hwe-6.8-headers-6.8.0-40 version: 6.8.0-40.40~22.04.3 linux-hwe-6.8-tools-6.8.0-40 version: 6.8.0-40.40~22.04.3 + linux-image-6.8.0-40-generic version: 6.8.0-40.40~22.04.3 Expected behavior: tpm working What happened: tpm timed out and is not showing up, so it can't be used -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2077121 Title: tpm chip timeout at boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-6.8/+bug/2077121/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs