[Bug 1965968] Re: post jammy update, black/flickering screen on boot
Ideally the flicker (PSR) should get a separate bug to the black screen regression, but it's difficult to separate them when both are messing up the same screen at the same time. So let's focus on just the black screen here. ** Summary changed: - post jammy update, black/flickering screen on boot + [Dell XPS 15 9575] Black screen on boot in kernels 5.14 and 5.15 (but 5.13.19 works) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: [Dell XPS 15 9575] Black screen on boot in kernels 5.14 and 5.15 (but 5.13.19 works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
based on previous comment no longer testing with i915.enable_psr=0, but here's what i've narrowed it down to: v5.13.19: works v5.14.0rc2: black screen looks like the v5.14.0rc1 build failed so can't test that? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
v5.14: black screen v5.13: black screen with i915.enable_psr=0, works without went back and tried the initial 5.13.0-35 as well, and it also does the black screen with i915.enable_psr=0 will try to find the first mainline 5.13 that doesn't work today (or if they all work). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
OK then next please try https://kernel.ubuntu.com/~kernel- ppa/mainline/v5.14/ If it works then next try: https://kernel.ubuntu.com/~kernel- ppa/mainline/v5.14.10/ If it fails then try: https://kernel.ubuntu.com/~kernel- ppa/mainline/v5.13/ We need to find the version where the black screen started. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
both of those exhibit the bug. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
Heh, two separate bugs on screen at the same time... Next please try these kernels: https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14.20/ https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.14.21/ And please keep i915.enable_psr=0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
i915.enable_psr=0 did not fix the black screen issue, but did appear to remove the flickering purple streaks, fwiw. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
Please try adding kernel parameter: i915.enable_psr=0 Although if kernel 5.13 works then I suspect it may be a relation of bug 1965882. As I dig deeper into that one it seems like a general kernel bug that's not specific to nouveau at all. ** Package changed: plymouth (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
** Tags added: amdgpu i915 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
kernel parameter intel_idle.max_cstate=4 does not help. Things do work properly if I boot with the external display plugged in to begin with. It does appear that blindly typing the encrypted disk password still "works" and gdm does end up starting behind the black screen, but the display does not fix itself until plugging in an external monitor. booting with kernel 5.13.0-35 does not exhibit the bug (but uses the previously configured ubuntu-gnome plymouth graphics instead of the new spinner ones). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1965968] Re: post jammy update, black/flickering screen on boot
Could you try a test and boot with; adding the kernel parameter intel_idle.max_cstate=4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1965968 Title: post jammy update, black/flickering screen on boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/plymouth/+bug/1965968/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
