[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Yes, it is an AMD Ryzen 5 3500U with Radeon Vega Mobile Gfx (Picasso) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
kaihengfeng, either it was fixed in Linux kernel v5.8 (like you say), or it was fixed by the Lenovo BIOS update. Either way, I haven't seen the hang on boot issue in a long while now. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
pauldoo, Sounds like issue is solved on v5.8? Kryzmak, Is it also a Ryzen laptop? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Setting the kernel parameter iommu=soft seems to solve this problem. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I am now able to reproduce this behaviour. Booting to blackscreen (after LUKS encryption) only occurs with an unplugged power adapter and NOT with a plugged one. With Ubuntu 18.04.5 (Kernel is the same 5.4.0-56, but complaining about missing amdgpu renoir drivers) the problem in my tests did NEVER occur. But the boot process with an unplugged power adapter is way more slower than with a plugged one. I have absolutely no clue about this behaviour. boot logs are not really helpful (at least with my understanding) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Since my last comment my Lenovo E595 laptop has changed configuration slightly. 1. The BIOS has updated to v1.19. 2. I installed the "linux-image-generic-hwe-20.04-edge" package, which as I write is an early release of the upcoming HWE kernel from 20.04.2 (kernel v5.8). With these updates in place I removed the "nomodeset" kernel boot parameter, and so far haven't seen a hang on boot in the past 2+ weeks. Like with the other kernels I tested I will keep an eye out for issues and update if I see anything. Unlike @viperomega - I still have not experienced a hang outside of the boot process, with any of the kernels and boot parameters I've tried. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Same problem here with Lenovo V15-ADA Devices. We do have about 60 laptops and nearly all show the same behaviour more or less often. The workaround that helped for me with kernel 5.4.0-54 or lesser was building the amdgpu kernel modules version 20.30. But with upgrade to kernel 5.4.0-56 this no longer works for us. By the way, this error also occurs without LUKS encryption but way less often. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I am having this same issue on my Lenovo X220. Using Ubuntu 20.04.1 LTS. I am able to boot by disabling the splash screen using: BOOT_IMAGE=/boot/vmlinuz-5.4.0-51-generic root=UUID=70d5c302-0fe3-4a83-9076-ca834b973ac3 ro nosplash I am using the stock kernel: Linux version 5.4.0-51-generic (buildd@lcy01-amd64-020) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #56-Ubuntu SMP Mon Oct 5 14:28:49 UTC 2020 I have not tried "nomodeset". -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
So, what are the next steps here (if any)? To summarize, the regular Ubuntu 20.04 GA kernel (v5.4) works reliably for me so long as "nomodeset" is provided as a kernel boot parameter. Without this parameter that kernel and others I was invited to test all hang occasionally on boot. Is there anything more that needs to happen on this ticket? Do you need me to test other kernel builds for example? Or, is the issue "resolved", and I should keep using "nomodeset" indefinitely? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I today experienced a hang using the v5.7 kernel above without the "nomodeset" kernel parameter. The hang occurred before the LUKS password prompt. I will attach a screenshot of the message displayed at the time of the hang. I will revert to the v5.4 GA kernel and reapply the "nomodeset" parameter. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Hang ** Attachment added: "Screenshot of hang from 2020-06-07. (v5.7 without nomodeset)" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+attachment/5381387/+files/IMG_3217.JPG -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I've installed the kernel from that link, and removed the "nomodeset" kernel parameter. The system has booted fine and Wayland is working again. I'll let you know if I see a hang on boot. --- v5.7 (3d77e6a8804abcc0504c904bd6e5cdf3a5cf8162) 9a1ce750a7d96cc5b6203fb82bc7cc9d5d429552824c4d975f9747fe6916 linux-headers-5.7.0-050700_5.7.0-050700.202005312130_all.deb f1f39b9b7efd9b4ea25f991ef585115d2c853b332e515596efc85556c88f4478 linux-headers-5.7.0-050700-generic_5.7.0-050700.202005312130_amd64.deb 31c09679caf2038911f4615d63b7b7e76803f269857cd5e5f56e7aaaf6b5b951 linux-image-unsigned-5.7.0-050700-generic_5.7.0-050700.202005312130_amd64.deb 8e14747de53e2cfb8ba221426b362874f36b005fd216c06a2fbc47dcae40d1b6 linux-modules-5.7.0-050700-generic_5.7.0-050700.202005312130_amd64.deb $ cat /proc/cmdline BOOT_IMAGE=/vmlinuz-5.7.0-050700-generic root=UUID=f7c34228-ee6f-4043-931c-f4752ad503c8 ro quiet splash vt.handoff=7 $ cat /proc/version Linux version 5.7.0-050700-generic (kernel@tangerine) (gcc version 9.3.0 (Ubuntu 9.3.0-13ubuntu1), GNU ld (GNU Binutils for Ubuntu) 2.34) #202005312130 SMP Mon Jun 1 01:33:12 UTC 2020 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Hi, have a look on: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.7/ 5.7.0-050700_5.7.0-050700.202005312130 without "nomodeset" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
So far so good with me using the standard 5.4 kernel and the nomodeset parameter. I wonder if the freezes during usage that viperomega experiences might be unrelated to the hang on boot issue (that we both saw without nomodeset). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
My e595 is my main develop machine, qt dev, lots of ssh connections, virtualbox + many firefox tabs with sometime youtube vids and many thunderbird imap accounts. And with the freeze is not even sysreq+"reisub" possible. The e595 not have a rs232 so i cannot console to second machine, what i would do to see what happen :-( And i think non of the kernel can use ttyusb for kernel console because ttyusb is always "m" not "y" compiled. But i didn't try yet. Maybe next days i will try ... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
@viperomega It's interesting that you mention freezes at times other than bootup. I've never experienced that problem on this laptop. Only the hang on boot issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I've switched back to the 5.4 kernel and have enabled the 'nomodeset' parameter. The laptop has booted fine. I'll keep using it like this and let you know if I see another hang on boot. I've noticed that Wayland is no longer an option on the login screen. I presume this is an expected consequence of disabling modesetting. $ cat /proc/version Linux version 5.4.0-31-generic (buildd@lgw01-amd64-059) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 $ cat /proc/version_signature Ubuntu 5.4.0-31.35-generic 5.4.34 $ cat /etc/default/grub | grep GRUB_CMDLINE GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset" GRUB_CMDLINE_LINUX="" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
please keep an eye on freezes after random time, for me "nomodeset" do not fix freezes during operation especially in battery mode. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Both are fine. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Which kernel would you like me to test with that parameter? The drm-tip one, or the regular Ubuntu 20.04 one (v5.4)? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Can you please try kernel parameter "nomodeset"? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
** Attachment added: "Screenshot of hang from 2020-05-24." https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+attachment/5376152/+files/hang.jpg -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I'm afraid to report that I experienced a hang on boot today, using the
drm-tip kernel ("5.7.0-994.202005192206"). This time the hang occurred
before the LUKS password prompt to unlock the root filesystem. There
was a message printed to the screen, which I will attach shortly.
I was able to reboot with SysRq SUSB sequence and the laptop booted fine
next time.
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Title:
Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
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[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
please keep an eye on freezes, i had such with 5.7.0-994.202005112208 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
The drm-tip directories for the most recent days have missing or failed amd64 builds, so I had to go back a few days and install the drm-tip kernel from: https://kernel.ubuntu.com/~kernel-ppa/mainline/drm- tip/2020-05-20/ With secure boot disabled I have rebooted approximately 15 times and have not been able to reproduce the hang on boot issue I was seeing with the regular 5.4 kernel. This is an intermittent issue, so I'll keep using this kernel for the time being and let you know if it hangs again. I have some questions now: 1. Should I expect the fixes from this drm-tip kernel to be made available to the regular Ubuntu 20.04 GA kernel (v5.4) ? Or, will the fixes only be made available in the next 20.04 HWE kernel? 2. How safe is it to keep using the drm-tip kernel in the meantime? I imagine the drm-tip kernel is not as thoroughly tested as the regular kernel, and does not receive automatic security updates. --- For reference, these are the packages I downloaded and installed. $ sha256sum linux-*.deb 83ae364e68ef7cfdc171a5037674da2f1cf8c67b63e84d2e2d08fab501499a37 linux-headers-5.7.0-994_5.7.0-994.202005192206_all.deb a4b5650ccd06137b1edf5e6c10283b598f32322149d46633f358a3b1d6ed9788 linux-headers-5.7.0-994-generic_5.7.0-994.202005192206_amd64.deb fb1dd00c1820b6e790302698b54818cfad2611b3de4b6135ce0316a86274eb16 linux-image-unsigned-5.7.0-994-generic_5.7.0-994.202005192206_amd64.deb 711c3fe02fcd38c6607c4c3f8e3a417ccc0b3252f4c576cf1fcf0e4743714197 linux-modules-5.7.0-994-generic_5.7.0-994.202005192206_amd64.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Oh, I see! I had no idea that error was related to secure boot. Thanks! I'll try that later and get back to you. The drm-tip download page ( https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/ ) links to the following wiki pages, neither of which mention secure boot in any way. * https://wiki.ubuntu.com/Kernel/MainlineBuilds * https://wiki.ubuntu.com/Kernel/FAQ Maybe most folks who decide to install one of these kernels have enough background knowledge to figure this out; but if users are being invited to install these kernels as part of diagnosing bugs maybe it's worth adding a note to one of those pages about secure boot? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Secure Boot need to be disabled to load unsigned kernel. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
The regular kernel has since updated to 5.4.0-31.35, but I can confirm that the hang on boot still occurs. I haven't heard back in a few days on whether there is something else you would like me to try. Like I said previously the drm-tip kernel didn't boot at all for me (invalid signature error). Anecdotally, I feel like the hang on boot is more common when the laptop is running off battery only (no AC). I hope that's helpful. New kernel version: $ uname -a Linux len 5.4.0-31-generic #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux $ cat /proc/version Linux version 5.4.0-31-generic (buildd@lgw01-amd64-059) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #35-Ubuntu SMP Thu May 7 20:20:34 UTC 2020 $ cat /proc/version_signature Ubuntu 5.4.0-31.35-generic 5.4.34 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Thanks for the reply, I followed the link provided in that bug ( https://kernel.ubuntu.com /~kernel-ppa/mainline/drm-tip/current/ ) and couldn't find "5.7.0-994.20200511220" there. The version there currently is "5.7.0-994.202005132209". I assumed this is just a few days newer than the one you suggest, so tried it anyway (hashes below). Unfortunately that kernel does not boot for me. I get an error message stating "error: /vmlinuz-5.7.0-994-generic has invalid signature". I don't see any mention of this error on the wiki pages linked from the drm-tip downloads page: * https://wiki.ubuntu.com/Kernel/MainlineBuilds * https://wiki.ubuntu.com/Kernel/FAQ $ sha256sum linux-*.deb 555703f956f138e6d0a729ea9d031d09ee45ae772069430887a8495259bc2790 linux-headers-5.7.0-994_5.7.0-994.202005132209_all.deb f41ed6f5c7cb0b7fa618a9fc079f0f8407045bacd9981973ed2c1ee593e64f6c linux-headers-5.7.0-994-generic_5.7.0-994.202005132209_amd64.deb 3c4c454454678f7d1077489b7126de6f8f337510db8d061795cc1ae56c6bb650 linux-image-unsigned-5.7.0-994-generic_5.7.0-994.202005132209_amd64.deb 13120fd4eb5ec37707c2883b3e6b57b3f2d82a10ab85d0af4812f83370cbe041 linux-modules-5.7.0-994-generic_5.7.0-994.202005132209_amd64.deb -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
try kernel 5.7.0-994.20200511220 see: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1873594 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
I confirm that the hang on boot issue still occurs after the reinstall of Ubuntu 20.04. Same kernel as before: $ cat /proc/version Linux version 5.4.0-29-generic (buildd@lgw01-amd64-035) (gcc version 9.3.0 (Ubuntu 9.3.0-10ubuntu2)) #33-Ubuntu SMP Wed Apr 29 14:32:27 UTC 2020 $ cat /proc/version_signature Ubuntu 5.4.0-29.33-generic 5.4.30 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1877889] Re: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595
Since logging this bug entry, I suffered a corrupted root filesystem. I don't know for sure that the hanging on boot followed by me forcing reboots was the cause, but I guess it won't have helped. :/ I guess my SysRq S+U+S+B didn't work quite as well as I'd thought. I was unable to recover the filesystem so I've had to reinstall Ubuntu 20.04. Luckily it was just the root filesystem that was lost so a reinstall was quite straight forward. I don't expect that a reinstall will have fixed the hangs (my kernel version is precisely the same as before), so I'll update when I see them again. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1877889 Title: Intermittent hangs on boot Ubuntu 20.04 on Lenovo E595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1877889/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
