[Bug 1189826] New: Severe screen flickering with kernel 5.13.12-1-default and i915
http://bugzilla.opensuse.org/show_bug.cgi?id=1189826 Bug ID: 1189826 Summary: Severe screen flickering with kernel 5.13.12-1-default and i915 Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: x86-64 OS: openSUSE Tumbleweed Status: NEW Severity: Major Priority: P5 - None Component: Kernel Assignee: kernel-bugs@opensuse.org Reporter: javier@opensuse.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- My laptop's screen flickers so much with 5.13.12 that it renders my laptop unusable. One workaround is to close and open the lid. After resuming, it works fine - there is no flickering. Booting up from the KDE Live image works fine. I have used the same Tumbleweed version (20210820) as the one I have installed on my laptop. The only difference is that I have an encrypted /home partition on my laptop's SSD. Tested kernels: 5.10.16-1.3: OK 5.11.4-1.3: NON-OK 5.12.12-1: NON-OK 5.13.12-1: NON-OK KDE Plasma 5.22.4 KDE Frameworks 5.85.0 Qt 5.15.2 See the attachments for more details. -- You are receiving this mail because: You are the assignee for the bug.
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--- Comment #1 from Javier Llorente
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--- Comment #2 from Javier Llorente
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Patrik Jakobsson
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--- Comment #4 from Javier Llorente
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--- Comment #5 from Javier Llorente
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--- Comment #6 from Javier Llorente
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--- Comment #7 from Javier Llorente
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--- Comment #8 from Javier Llorente
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--- Comment #9 from Javier Llorente
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--- Comment #10 from Javier Llorente
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--- Comment #11 from Javier Llorente
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--- Comment #12 from Javier Llorente
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--- Comment #13 from Patrik Jakobsson
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--- Comment #14 from Javier Llorente
Watermark and DDB levels look fine. The EDP config register might hold a clue. Other things you can try is to boot with: i915.enable_psr=0 and/or i915.enable_dc=0
Unfortunately, I still get heavy flickering if I boot with any of those or both. -- You are receiving this mail because: You are the assignee for the bug.
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--- Comment #15 from Patrik Jakobsson
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--- Comment #16 from Javier Llorente
Thanks for testing. One more thing you can try is: i915.enable_fbc=0
If this doesn't work, I'm not sure what to try next. If you are comfortable with building your own kernels [1] and have the time to spend, you can try to bisect [2] the issue.
If you cannot bisect I recommend you report this upstream at: https://gitlab.freedesktop.org/drm/intel/-/issues
[1] https://kernelnewbies.org/KernelBuild [2] https://www.kernel.org/doc/html/latest/admin-guide/bug-bisect.html
Unfortunately, it does not work. Perhaps there is a similar upstream bug. I am going to investigate it. Thanks to you for your help!(In reply to Patrik Jakobsson from comment #15)
Thanks for testing. One more thing you can try is: i915.enable_fbc=0
If this doesn't work, I'm not sure what to try next. If you are comfortable with building your own kernels [1] and have the time to spend, you can try to bisect [2] the issue.
If you cannot bisect I recommend you report this upstream at: https://gitlab.freedesktop.org/drm/intel/-/issues
[1] https://kernelnewbies.org/KernelBuild [2] https://www.kernel.org/doc/html/latest/admin-guide/bug-bisect.html
Unfortunately, it does not work. Perhaps there is a similar upstream bug. I am going to investigate that first. Thanks to you for your help! -- You are receiving this mail because: You are the assignee for the bug.
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--- Comment #17 from Javier Llorente
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Anton Smorodskyi
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