[Bug 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I have the same problem on an Lenovo X260, i7-6500U. Using the "i915.enable_dc=0 intel_idle.max_cstate=2" workaround has made the system more stable. This mostly seems to occur when playing a game in the browser (chrome & firefox), e.g. chess.com. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Same issue here. Heavy black flickering on the screen with Ubuntu 22.04 after upgrade from 20.04 and after a clean install. No extra repos, only default packages. Aspire 3 A315-31 series N17Q2 Mesa Intel® HD Graphics 500 (APL 2) Linux laptop 5.15.0-33-generic #34-Ubuntu SMP Wed May 18 13:34:26 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/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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Reported a new bug here: https://bugs.launchpad.net/ubuntu/+source/linux-signed-lowlatency/+bug/1976398 as in my case adding extra option to GRUB didn't help. Please follow there if you are also affected. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Peter, I don't think it's a fix, but only a workaround that limits two important power management functionalities (cpu cstates and gpu display cstates). I hope and believe they're still working on finding a real fix for 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/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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Shouldn't an update be released that adds the workaround(s) mentioned above (the Kernel boot parameters i915.enable_dc=0 or/and, if necessary, intel_idle.max_cstate=$MAX_CSTATE_THAT_WORKS)? So the Ubuntu 22.04 experience is improved for users with Intel graphics while the kernel regression is tracked down and patched? -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
If the suggested solution doesn't work for you then please open a separate new bug by running: ubuntu-bug linux -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
adding "i915.enable_dc=0 intel_idle.max_cstate=2" doesn't help in my case (kernel 5.15, Intel UHD / i915 graphics) -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Having the same issue on a Lenovo T480s laptop. Linux JP 5.15.0-30-generic #31-Ubuntu SMP Thu May 5 10:00:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux *-display description: VGA compatible controller product: UHD Graphics 620 vendor: Intel Corporation physical id: 2 bus info: pci@:00:02.0 logical name: /dev/fb0 version: 07 width: 64 bits clock: 33MHz capabilities: pciexpress msi pm vga_controller bus_master cap_list ro m fb configuration: depth=32 driver=i915 latency=0 resolution=1920,1080 resources: irq:160 memory:e700-e7ff memory:c000-cfff ioport:e000(size=64) memory:c-d -- 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 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
done in Bug #1973676 Thanks Daniel -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
David, please open a new bug for the above. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Half-related to this bug but worth mentioning it because it is certainly linked to it. On a HP x360 Spectre (i7-8565U WhiskeyLake-U GT2 [UHD Graphics 620]), the trick with GRUB_CMDLINE_LINUX_DEFAULT. The problem is more serious here because the screen flickers and goes to black, purple, green, entirely, immediately after the boot (so basically when the kernel presumably changes the graphics mode) I tried different kernels: - 5.17.8: failed - 5.15.x: all failed (from Ubuntu 22.04) - 5.13.19: works and back to normal So the problem is > 5.13.x series -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
The monitor going black is a different bug. Please don't discuss that here, but open a new bug by running: ubuntu-bug linux -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Updated ubuntu from 21.04 and no matter what I do with settings, all monitors go black every 30 seconds I do not touch the keyboard or mouse (or running movie). I hope it will be fixed soon. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I just updated my Ubuntu to 22.04 and I'm having the same issue. Hopefully it'll get fixed ASAP. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Hi, following up on this - https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/comments/9 GRUB PARAM - `i915.enable_dc=0 intel_idle.max_cstate=2` has fixed the flicker for me. $ uname -a Linux home 5.15.0-30-generic #31-Ubuntu SMP Thu May 5 10:00:34 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux $ grep GRUB_CMDLINE_LINUX_DEFAULT /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_dc=0 intel_idle.max_cstate=2" -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Following up on this: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1958191/comments/16 Booting with 5.15.0-25-generic and the i915.enable_dc=0 intel_idle.max_cstate=2 configs seems to fix the issue on my hardware. 5.15.0-27-generic won't stop shaking randomly no matter what value I test on intel_idle.max_cstate. It seems to get worse when there are many windows on the screen or something is zoomed in/out. For example, on shopping sites like aliexpress, hovering with the mouse on the product normally spawns this window with the zoomed product, I noticed that this caused a lot of shaking. Reading stuff, especially with images seems to cause it more regularly as well. However, watching videos was fine all the time. I can also confirm that the kernel 5.13.0-20-generic works without an issue with the same hardware as some of my work colleagues have the same machine running Ubuntu 21.10 with that kernel. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
@lotuspsychje : I think it would be useful to detect a behaviour change, even if symptoms are slight different (eventually it can still help for bug 1948778 if there are two different bugs). @kjur : kernel series from https://kernel.ubuntu.com/~kernel- ppa/mainline/?C=N;O=A are vanilla kernels, Ubuntu kernels has some more patches added. If you can bisect you could start with 5.13.19, hopefully it should be bug free. If so then try 5.15. If 5.15 is "bugged", then select a kernel between 5.13.19 and 5.15 (says 5.14) then continue until you find the first one with the problem. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
@Oibaf (oibaf) - I experienced the same issue on Xubuntu 22.04 too. The very last available xubuntu 21.10 kernel was fine. I upgraded from fully updated 21.10 to 22.40 and then the problem started. Not sure what is the latest 21.10 available kernel. Perhaps 5.13.0.1022.23 ? Not sure how to do a full research on that. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I can confirm that adding `i915.enable_dc=0 intel_idle.max_cstate=2` works for me on i7-7600u. No more screen flickering in the last two days. Without the workaround the flickering occurs randomly and definitively in correlation to mouse movement, but I'm not sure how exactly. As already stated by ernstp (#20), kernel bisection is going to be a rocky road ... -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
@ Oibaf #19 If it can help, i start helping debug ubuntu 22.04 from the start with kernel 5.13.0-19.19-generic with light flickering (workable) see bug https://bugs.launchpad.net/ubuntu/+source/mutter/+bug/1948778 and heavy unworkable flickering started (in this bug) with kernel series 5.15.0-17-generic -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
When I upgraded to 22.04 I started getting flicker on my external HDMI monitor. Latitude 7300, i7-8665U. A batch of flicker every 15 or 30 minutes or so, not very easy to use for bisecting... There are instances of [336186.058517] i915 :00:02.0: [drm] *ERROR* CPU pipe B FIFO underrun in dmesg but it doesn't always appear when there is flickering. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
Daniel van Vugt (vanvugt) asked for a kernel bisect with the kernel mainline PPA: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1970426/comments/22 If someone is willing to do it he can do this (from https://wiki.ubuntu.com/Kernel/KernelBisection#Version_bisecting_upstream_kernels): The first step in the bisect process is to find the last "Good" kernel version, followed consecutively in version by the first "Bad" one. That is done by downloading, installing and testing kernels from https://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=A Thanks. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I'm not using wayland. I stated that I was on X11. I did sudo update-grub indeed! -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
@ Diogo #16 did you also sudo update-grub after the kernel paramater? and doublechecked if you are using your intel card and not your nvidia on wayland? -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
I'm having the same issue, I'd like to add that I've tested both Xubuntu 22.04 and Ubuntu 22.04 and was able to reproduce the same error. Now I'm running Kubuntu 22.04 with the following spec: OS: Kubuntu 22.04 LTS x86_64 Kernel: 5.15.0-27-generic Shell: bash 5.1.16 Resolution: 1920x1080 @ 120Hz DE: KDE Plasma 5.24.5 KDE Frameworks Version: 5.93.0 WN: Kwin 5.24.5 Qt Version: 5.15.3 Graphics Platform: X11 Host: GL62 6QF REV:1.0 CPU: Intel i5-6300HQ (4) @ 3.200GHz GPU: Mesa Intel® HD Graphics 530 GPU: NVIDIA GeForce GTX 960M Here's another video of the issue: https://streamable.com/b9792p PS: I added GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i915.enable_dc=0 intel_idle.max_cstate=2" to /etc/default/grub and I still have some instances of screen shaking. -- 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 1958191] Re: [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added)
** Summary changed: - [i915] Flickering and deformed booting into desktop both on wayland/xorg + [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0 intel_idle.max_cstate=2 are added) ** Tags added: regression-release rls-jj-incoming ** Changed in: linux (Ubuntu) Status: Incomplete => Triaged ** Changed in: linux (Ubuntu) Importance: Undecided => High -- 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
