I'm uncertain if this channel is still open, but It seems that the problem
has returned. I'm not quite sure why, I think it might be that I didn't
properly update to boot parameters when I was testing kernel 5.3.0 - 994
but either way, it seems that the new kernel isn't a solution.
On Tue, Sep 3,
** Changed in: linux (Ubuntu)
Status: Incomplete => New
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Title:
Excessive screen tearing and flickering on Asus ZenBook S UX3
I have tested this kernel without having the parameter
intel_idle.max_cstate=4 at boot and I am not having any problems
On Sun, Aug 25, 2019 at 1:15 AM Kai-Heng Feng
wrote:
> Can you please test latest drm-intel kernel here:
> https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/curr
Can you please test latest drm-intel kernel here:
https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-intel-nightly/current/
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Title:
No, i915.enable_psr=0 doesn't solve the problem
On Sat, Aug 24, 2019 at 1:40 PM Kai-Heng Feng
wrote:
> Does "i915.enable_psr=0" instead of "intel_idle.max_cstate=4" help?
>
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Does "i915.enable_psr=0" instead of "intel_idle.max_cstate=4" help?
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Title:
Excessive screen tearing and flickering on Asus ZenBook
booting with the parameter intel_idle.max_cstate=4 seems to have solved the
issue, thank you. Is this a permanent fix or will I eventually need to
alter this with a future kernel update? Also I'm curious as to what
intel_idle.max_cstate=4 actually does.
On Thu, Aug 22, 2019 at 8:00 PM Daniel van V
To test: intel_idle.max_cstate=4
1. Edit /etc/default/grub and add it to the line
GRUB_CMDLINE_LINUX_DEFAULT=...
2. sudo update-grub
3. Reboot.
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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I have found something that changes the state of the flickering. I tried to
plug in a thunderbolt to hdmi display and while the machine didn't output
to the display, the flickering stopped. I found that if I plugged in the
display while flickering was occurring the flickering would stop and once I
I'm not sure how to boot with this setting, could I get more
information?
On Wed, Aug 14, 2019 at 2:50 PM Timo Aaltonen
wrote:
> does booting with intel_idle.max_cstate=4 help?
>
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If the error in comment #14 happened repeatedly I would say this is a
duplicate of bug 1550779.
But it doesn't happen repeatedly (see comments #9-#10).
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dmesg:
[ 20.435601] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR*
CPU pipe A FIFO underrun
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Title:
Excessive screen te
does booting with intel_idle.max_cstate=4 help?
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Title:
Excessive screen tearing and flickering on Asus ZenBook S UX391UA
Status in
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Summary changed:
- Excessive screen tearing and flickering
+ Excessive screen tearing and flickering on Asus ZenBook S UX391UA
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I did verify that kernel 5.3 was running. Also I'm confident that it isn't
a hardware issue. When I wiggle the top cover there is no change, also I
run windows on the same laptop and I don't have these issues.
On Sun, Aug 11, 2019, 7:35 PM Daniel van Vugt
wrote:
> Also, did you verify that kerne
If nothing gets added to the output when the flickering happens then
that answers my question, thanks.
This still feels like a kernel bug if not a hardware problem.
Do you notice any change if you wiggle the laptop screen? Try moving it
forward and backward. We next need to check if it's related
Also, did you verify that kernel 5.3 was running successfully?
uname -a
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Title:
Excessive screen tearing and flickering
Status i
I've tried both switching to Ubuntu on wayland and I installed kernel
5.3-rc3 and there hasn't been any change.
I'm not sure what I'm supposed to be seeing in the terminal window when I
run dmesg -w but here is a screenshot of part of the output. Nothing gets
added to the output when the flickering
Thanks. The videos seem to show this is a problem with aligning the
entire display image. So it's not traditional "tearing", but I totally
agree that "tearing" and "flickering" is the best description.
Please try logging in to "Ubuntu on Wayland" and tell us if that avoids
the problem.
Please als
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