For me, the bios change (Intel (R) VT-d Feature -> disabled) also seemed to fix the crashing issues.
- Laptop: Thinkpad P50 with Kernel 6.8.0-40-generic and on Ubuntu 24.04.2 LTS - 2 display controllers: Intel HD Graphics 530 and Nvidia Quadro M2000M. - CPU: i7 I also have another laptop, Dell (also i7), which I use on a daily basis, with more or less the same Ubuntu and kernel versions and both use the same docking station to connect to the same monitors. This laptop has only a "CometLake-U GT2 [UHD Graphics]" and I've never experienced either the crash- or suspend-issues on this one. I also tried installing several drivers, like nouveau and some of the available nvidia-driver-5xx (including latest 570). None of this seemed to make a notable difference. But I do think that the crashes are somehow related to the graphics because normally they would only happen while connected to external monitors. More background on the crash issue: =================================== I've been experiencing crash issues on my Thinkpad P50 for a long time now (maybe a year?) and I've also had the very annoying "can't wake after suspend"-issue (see below also for the fix). Before a crash I would normally hear the CPU fan going loud and, after some seconds, the system would crash. Being forced to do a hard reset. Because nothing else worked. I'm including more details about how the crash behaviour changed after the GRUB setting (which solved the suspend issues), in case this is helpful to narrow down the cause of the problem. Also maybe interesting to mention, I could normally avoid the crashes by NOT connecting the docking station with other monitors. And I had the feeling that VirtualBox and PyCharm usually lead to some CPU (or memory) usage or state that would often end up in a crash. So after changing the setting on the BIOS, I did some tests with VBox and PyCharm to try to reproduce the crash/freeze. At some point, I had the feeling it would crash again, because I could hear the fan going loud, which was normally a sure sign that it'd crash. But it didn't! ... I know it's probably to soon to tell if the issue for me is really solved or not, but at the first glance I think it might have. So thanks a lot to @jdaviescoates and everybody else! This was (is) driving me crazy and I'd be great if the issues were gone now :-) More details about the suspend issues: ====================================== I would normally wouldn't be able to wake the laptop either after closing the lid, or after inactivity and the laptop going to sleep. Avoiding sleep-phase (e.g. by settings) worked, but was very annoying. I could fix the suspend issue some weeks ago by setting `intel_iommu=off` on `GRUB_CMDLINE_LINUX_DEFAULT`, but the crashes continued, though a bit different (read below for more details). More details about the system freezing with a movable cursor: =========================================================== As I wrote, after changing the grub setting, the crashes were still happening, but, instead of getting a black screen with a blinking cursor, as before, I started just getting a frozen window with a moving cursor but more or less all applications unusable. Even though they kind of remained responsive in the background. For example, I could open a terminal, and I wouldn't see the content of the window but I could use `CTRL + d` to close it. Or after closing an application (e.g. through shurtcuts or thumbnails) I could see how a window would open, but the content would be transparent. I could also guess where the buttons could be inside it and press them, then the unresponsive application would close. Also, some applications (e.g. from the taskbar) would be more responsive. Being able to open the dropdowns, but only a very limited interaction possible. The applications that were open before the crash remained visible, but I couldn't interact with the content, or at least not visibly. But a certain amount of interaction was also possible here. The window "top" level buttons remained responsive, e.g. pressing the close button on the top right still worked. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2059738 Title: Kernel 6.8 - Shutdown/Reboot hangs on Noble 24.04 To manage notifications about this bug go to: https://bugs.launchpad.net/snapd/+bug/2059738/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
