[Bug 1971437] Re: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend
After seeing the previous comment, I decided to try 5.18, so I installed 5.18.2 from the mainline ppa and it fixes the problem for me as well. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971437 Title: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1971437] Re: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend
I tried commit-bisecting the issue, but the build instructions are not working for me. However, I'd like to point out that there are only 15 commits between 5.14.20 (working for me) and 5.14.21 (not working for me). https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/log/?h=linux-5.14.y -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971437 Title: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I also experience flickering with Ubuntu 22.04's 5.15.0-27-generic kernel, which goes away with i915.enable_dc=0 intel_idle.max_cstate=2, and was not present with Ubuntu 20.04's latest 5.13 kernel. Due to another bug affecting my machine, I'm now running the vanilla 5.14.20 kernel from the mainline-ppa. Out of curiosity, I tried removing "i915.enable_dc=0 intel_idle.max_cstate=2" and I've been flicker-free for several days now (I used to experience flickering a few times a day initially). So, either the problem is specific to Ubuntu kernels, or it was introduced between 5.14 and 5.15. Due to that other bug, and the fact the the flickering used to be infrequent, I'm not sure I'll be able to version-bisect this issue, but I'll give it a try if I can find the time. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1958191 Title: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1971437] Re: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend
I tried version-bisecting the issue using the mainline kernel ppa, as in https://wiki.ubuntu.com/Kernel/KernelBisection#Version_bisecting_upstream_kernels The last good version is 5.14.20. The first bad version is 5.14.21. Just to be sure this hasn't been fixed in the meantime, I tried 5.18-r6 and it's still bad. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971437 Title: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970426] Re: [i915] screen is flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
*** This bug is a duplicate of bug 1958191 *** https://bugs.launchpad.net/bugs/1958191 > Is there any reliable solution to this bug ? It looks like the following is working for everyone so far: 1. Edit /etc/default/grub to add append i915.enable_dc=0 intel_idle.max_cstate=2 to the contents of GRUB_CMDLINE_LINUX_DEFAULT (so, unless you've edited it before, the line looks like GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_dc=0 intel_idle.max_cstate=2") 2. sudo update-grub 3. reboot I've been flicker-free ever since I've done that, while the flickering was relatively frequent before that. Alternatively, running a 5.13 kernel should work too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970426 Title: [i915] screen is flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1971437] Re: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend
Same here with my ThinkPad E460. Everything was working fine with 20.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1971437 Title: linux-image-5.15.0-27-generic causes Thinkpad T460p to not resume after suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1971437/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1970426] Re: [i915] screen is flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
*** This bug is a duplicate of bug 1958191 *** https://bugs.launchpad.net/bugs/1958191 Same here, after upgrading from 20.04 on my ThinkPad E460 which had been working fine for years. lshw | grep -A2 display *-display description: VGA compatible controller product: Skylake GT2 [HD Graphics 520] -- *-display description: Display controller product: Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445 / 530/535 / 620/625 Mobile] uname -a Linux siegel 5.15.0-27-generic #28-Ubuntu SMP Thu Apr 14 04:55:28 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1970426 Title: [i915] screen is flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
