** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
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Title:
Dell XPS 13 9380 - Screen brightness
I also hit Fn-A, which I saw somewhere (sorry to not have the link) that
would disable adaptive brightness.
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Title:
Alright, here we go.
I have the kernel listed above installed: Linux shadeball
5.2.0-9-generic #10~bfo110511 SMP Tue Jul 16 13:17:28 CST 2019 x86_64
x86_64 x86_64 GNU/Linux
I then went into the Power settings and turned Dim Screen When Inactive
to off, Blank Screen to Never and so far there have
OK, I think your bug is about auto screen brightness instead of PSR. Can
you please disabe it?
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Title:
Dell XPS 13
But just to confirm, I think the patched kernel did improve the amount
of flickering.
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Title:
Dell XPS 13 9380 -
Huh, I wonder if this is a Gnome Shell issue and not a kernel issue
after all. After switching to Ubuntu Mate, and uninstalling the kernel
mentioned above, I have not had a flicker yet. Anecdotally, I have also
heard of people installing KDE on an XPS 13 9380 and also not having
this issue.
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Another error message from a flicker
Sep 12 20:28:01 shadeball org.gnome.Shell.desktop[5959]:
[6514:6514:0912/202801.632870:ERROR:gl_surface_presentation_helper.cc(259)]
GetVSyncParametersIfAvailable() failed for 1280 times!
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I ran "journalctl --user" after the last flicker and this is the output
from the time around the flicker
Sep 12 20:12:34 shadeball org.gnome.Shell.desktop[5959]:
[1:1:0912/201234.077664:ERROR:child_process_sandbox_support_impl_linux.cc(81)]
FontService unique font name matching request did not
I am running Ubuntu 19.04 with an XPS 13 9380 with Intel graphics. I
installed the kernel mentioned above, and the problem is still
occurring. I do a dmesg everytime I see it happen, but I don't see a
consistent message every time it happens. I am more than willing to do
any and all testing you
Hi, I also have this bug on my XPS-13-9380 with the 1080p screen. I
tried to install the patched kernel that was linked above, but
unfortunately the screen still flashes occasionally. The patch might
have helped a little bit, but I'm not sure. It feels like the flashes
are more rare, and maybe not
I have now followed the same steps for the kernel linked to below and already
see flickering.
https://bugzilla.freedesktop.org/show_bug.cgi?id=110511#c25
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I followed these steps and the screen still flickers.
1) Downloaded the kernel linked to here into a new directory:
https://bugzilla.freedesktop.org/show_bug.cgi?id=110511#c16
2) sudo dpkg -i *deb
3) sudo reboot
Have I correctly installed the new kernel?
$ uname -a
Linux XPS-13-9380
Hello, thanks for your reply. I have tested that kernel and I did not
notice any such problem!
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Title:
Dell XPS 13
Download all the debs to a new directory, then
$ sudo dpkg -i *deb
$ sudo reboot
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Confirmed => Invalid
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Thanks & sorry for belated response. I've never manually installed a new
kernel (and am not sure how to proceed about checking integrity, etc.).
Is there any resource you'd advice to get info on the topic? Thanks in
advance. For now I can confirm that since I added this to the kernel
options, I
** Tags added: ubuntu-certified
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Title:
Dell XPS 13 9380 - Screen brightness flashes
Status in
Thomas, if it's PSR related, please test the kernel here:
https://bugzilla.freedesktop.org/show_bug.cgi?id=110511#c25
** Bug watch added: freedesktop.org Bugzilla #110511
https://bugs.freedesktop.org/show_bug.cgi?id=110511
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So it seems that it does away with the following kernel option:
i915.enable_psr=0
It seems from some Dell user forum that some have had the same issues on
Windows and disabling the panel self refresh worked for them so I was
searching along these lines.
I'm certain it's not a "clean" fix however
I have also been trying to see what are the packages difference between
the OEM version and 19.04 since I suspect that Dell might have addressed
this issue in their version. I have a list of all packages that were on
the OEM but that might be tedious. If we contacted Dell directly, would
they be
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: gnome-settings-daemon (Ubuntu)
Status: New => Confirmed
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Hello all, I believe that I have this same bug, also after a 19.04 fresh
install. I initially posted on that bug:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826125 but they
kindly directed me here.
Of note, I am glad you tried wayland as I wanted to try if that made any
difference. I
** Package changed: mutter (Ubuntu) => linux (Ubuntu)
** Changed in: linux (Ubuntu)
Status: Incomplete => New
** Package changed: xorg-server (Ubuntu) => gnome-settings-daemon
(Ubuntu)
** Changed in: gnome-settings-daemon (Ubuntu)
Status: Incomplete => New
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Thanks for the inquiry, vanvugt. I'm trying an Ubuntu on Wayland session
this evening and the brightness flashing has continued with about the
same frequency.
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