After finding someone reporting the same issue (https://forums.linuxmint.com/viewtopic.php?t=373747&p=2175201) and reading that the machine may come alive after a while, I found that indeed after 3 minutes the machine works. dmesg that reveals that it seemingly was the initialization of the intel_lpss driver that took 3 minutes:
[ 6.889189] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002) [ 7.112397] input: PC Speaker as /devices/platform/pcspkr/input/input5 [ 7.220480] RAPL PMU: API unit is 2^-32 Joules, 5 fixed counters, 655360 ms ovfl timer [ 7.220481] RAPL PMU: hw unit of domain pp0-core 2^-14 Joules [ 7.220481] RAPL PMU: hw unit of domain package 2^-14 Joules [ 7.220482] RAPL PMU: hw unit of domain dram 2^-14 Joules [ 7.220482] RAPL PMU: hw unit of domain pp1-gpu 2^-14 Joules [ 7.220483] RAPL PMU: hw unit of domain psys 2^-14 Joules [ 9.882380] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready [ 10.068162] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready [ 10.070009] IPv6: ADDRCONF(NETDEV_UP): eno2: link is not ready [ 10.115669] IPv6: ADDRCONF(NETDEV_UP): eno2: link is not ready [ 10.117735] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready [ 10.615555] IPv6: ADDRCONF(NETDEV_UP): enp2s0: link is not ready [ 14.114836] e1000e: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: Rx/Tx [ 14.114883] IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready [ 15.199994] atlantic: link change old 0 new 1000 [ 15.200150] IPv6: ADDRCONF(NETDEV_CHANGE): enp2s0: link becomes ready [ 187.423062] intel-lpss 0000:00:15.1: enabling device (0000 -> 0002) [ 187.432242] mei_me 0000:00:16.0: enabling device (0000 -> 0002) [ 187.432264] shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 [ 187.441672] AVX2 version of gcm_enc/dec engaged. [ 187.441673] AES CTR mode by8 optimization enabled [ 187.445619] idma64 idma64.0: Found Intel integrated DMA 64-bit [ 187.452528] idma64 idma64.1: Found Intel integrated DMA 64-bit Note these lines: [ 6.889189] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002) [ 187.423062] intel-lpss 0000:00:15.1: enabling device (0000 -> 0002) [ 187.432242] mei_me 0000:00:16.0: enabling device (0000 -> 0002) [ 187.445619] idma64 idma64.0: Found Intel integrated DMA 64-bit [ 187.452528] idma64 idma64.1: Found Intel integrated DMA 64-bit For comparison, the same lines from the 4.15.0-176 dmesg: [ 6.321873] intel-lpss 0000:00:15.0: enabling device (0000 -> 0002) [ 6.340549] idma64 idma64.0: Found Intel integrated DMA 64-bit [ 6.345409] intel-lpss 0000:00:15.1: enabling device (0000 -> 0002) [ 6.345610] idma64 idma64.1: Found Intel integrated DMA 64-bit [ 6.350618] mei_me 0000:00:16.0: enabling device (0000 -> 0002) So the initialization time increased from 30ms of 180s, i.e. by a factor of 6,000. This cannot be right. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1973167 Title: linux-image-4.15.0-177-generic freezes on the welcome screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1973167/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs