Confirmed that the bug is fixed in the 4.10 kernel series.
Further confirmed that this is down to the i915.enable_psr parameter:
Linux 4.8 with no command line => flickering (enable_psr defaults to on)
Linux 4.8 with i915.enable_psr=0 => no flickering
Linux 4.10 with no command line => no
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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** Tags added: kernel-fixed-upstream
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Title:
Screen flickering
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Sorry I should have explained better, I also have a Lenovo Edge E540
which is how I initially found this bug report via Google, but mine does
not have the nvidia chipset, only Intel, so I didn't see how this could
be caused by the nvidia driver.
I will try to test the newer upstream kernel when I
Now that I had another look i-mail-3 has a hybrid system, so test the
mainline kernel first and if it does fix the flickering then move back
to linux.
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Dave, don't hijack bugs, this was originally filed on a system with
nvidia, your bug is not the same.
** Package changed: linux (Ubuntu) => nvidia-graphics-drivers (Ubuntu)
** Changed in: nvidia-graphics-drivers (Ubuntu)
Status: Incomplete => New
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Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.10 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: nvidia-graphics-drivers (Ubuntu)
Status: New => Confirmed
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** Package changed: nvidia-graphics-drivers (Ubuntu) => linux (Ubuntu)
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https://bugs.launchpad.net/bugs/1663989
Title:
Screen flickering
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Same issue, although I only have Intel graphics. Adding
i915.enable_psr=0 to the kernel parameter line fixed the flickering for
me.
This is apparently solved upstream in kernel 4.9:
https://patchwork.kernel.org/patch/9507451/
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** Package changed: xorg (Ubuntu) => nvidia-graphics-drivers (Ubuntu)
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https://bugs.launchpad.net/bugs/1663989
Title:
Screen flickering
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