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** Changed in: linux
Status: Incomplete => Unknown
** Bug watch added: gitlab.freedesktop.org/drm/intel/issues #166
https://gitlab.freedesktop.org/drm/intel/issues/166
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Another idea
https://github.com/vsyrjala/linux/commit/9bfe76d15704a680559d573d00d074a47eea764d
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Title:
Horizontal screen flicker Int
Same issue with Ideapad 720s tested with the latest Ubuntu 19.10. I
don't get flashing on boot, but when the computer wakes up from sleep
mode it starts flashing and after 1 min or 2 the computer hangs.
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I tried kernel 5.3.7, screen still exhibits the same issue with
flickering on lenovo ideapad 720s 13ikb.
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Title:
Horizontal screen f
commit f0521558a2a8 ("drm/i915: Don't clobber M/N values during fastset
check") may have helped here.
Looks like that one should be in 5.1.15+ or 5.2+. What's the most recent
kernel people have tried here?
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(In reply to Lakshmi from comment #107)
> (In reply to Ashish Maknikar from comment #106)
> > I am having the same flickering problem with my Asus.Kernel is Kernel Linux
> > 5.0.0-29-generic x86_64. I have a dual boot with windows where the problem
> > is occurring as well. The flickering in window
** Changed in: linux
Status: Confirmed => Incomplete
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
(In reply to Ashish Maknikar from comment #106)
> I am having the same flickering problem with my Asus.Kernel is Kernel Linux
> 5.0.0-29-generic x86_64. I have a dual boot with windows where the problem
> is occurring as well. The flickering in windows lowers down (but does not
> stop) from insane
I am having the same flickering problem with my Asus.Kernel is Kernel
Linux 5.0.0-29-generic x86_64. I have a dual boot with windows where the
problem is occurring as well. The flickering in windows lowers down (but
does not stop) from insane levels if I disable the Intel graphics in
display adapte
Hey guys ,
Ive got the same flickering issue in both windows and ubuntu. Disabling the
Intel UHD grapics in windows slows down the flickering from insane to a lot.
Meanwhile the flickering is there in ubuntu as well but it suddenly stops after
around 3-5 minutes of usage. Laptop is ASUS K501UW-a
Hi All
I have been following this, having been led here by the guys from Ubuntu
Budgie.
My GFX card is a Mesa DRI Intel UHD Graphics 620 (Kabylake GT2) v: 4.5
Mesa 19.0.8
At 18.10 kernel all is fine with both flickering gone and being able to join
screens via VGA / HDMI
At 19.04 this is not the
Maarten, what are the next steps?
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
Ideapad 720s 13IKB 81BV
Does kernel parameter "i915.enable_psr=0" help?
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
Ideapad 7
I am using ASUS GL704GW laptop(intel UHD 630/RTX 2070) with ubuntu
18.04/Elementary OS 5/Mint 19.2/MX Linux 18.3.
Same flickering problem.
I noticed that the bug has been confirmed almost a year now. Will it be fixed
or not?
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Hello, I have commented on the following:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1826125 which might
be related. As said there, I owe a XPS 13 9380 (with Intel 620) and have
some flickering issues as well (Ubuntu 19.04, fresh install, not the OEM
version)
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Oh well, worth a shot.
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
Ideapad 720s 13IKB 81BV
Status in
** Changed in: linux
Status: Incomplete => Confirmed
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
Created attachment 144365
dmesg with constant_n forced true
Unfortunately not. Attached dmesg from using the newly compiled kernel
with the forced constant_n
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Working (fastset at boot):
[3.494890] [drm:intel_dump_pipe_config [i915]] dp m_n: lanes: 4; gmch_m:
6213395, gmch_n: 8388608, link_m: 517782, link_n: 524288, tu: 64
Broken (modeset):
[ 192.531640] [drm:intel_dump_pipe_config [i915]] dp m_n: lanes: 4; gmch_m:
6213395, gmch_n: 8388608, link_m
Same thing happens to me, drops to the exact same wrong modeset after
changing the bool value.
(wrong modeset) dp m_n: lanes: 4; gmch_m: 24271, gmch_n: 32768, link_m:
32361, link_n: 32768, tu: 64
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Created attachment 144358
dmesg from 5.1.4-arch1-1-ARCH with drm.debug=14
Adding a dmesg of my current kernel with fastboot enabled, 0-70s is the
correct behaviour, after that its me closing the lid, waiting a bit and
then opening it to a flickery display. Seems like the later part gets a
lot of h
@Stan/Maarten, can you help here? Any further suggestions?
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Title:
Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo
Ignore what I said earlier, the xps 13 model that uses the same panel is
the xps 13 9380, and it seems to exhibit the same sort of flicker issue
according to Bug 110511. Sorry!
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(In reply to Mazin from comment #96)
> Nothing changed, I assume that work will be done here before the fix is
> pushed.
>
> @Marteen I also tried to build the kernel with "constant_n = true;" and the
> flickering is still there. I do know that a laptop with the same display
> panel (Dell xps 937
Nothing changed, I assume that work will be done here before the fix is
pushed.
@Marteen I also tried to build the kernel with "constant_n = true;" and
the flickering is still there. I do know that a laptop with the same
display panel (Dell xps 9370) works perfectly fine under Linux. The
panel is
** Summary changed:
- Screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s 13IKB 81BV
+ Horizontal screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s
13IKB 81BV
** Also affects: linux via
https://bugs.freedesktop.org/show_bug.cgi?id=108132
Importance: Unknown
i have the same problem - thinkpad x1 carbon model 16 gb
description: VGA compatible controller
product: UHD Graphics 620
vendor: Intel Corporation
physical id: 2
bus info: pci@:00:02.0
version: 07
width: 64 bits
clock: 33MHz
capab
I've this very same problem. I'm using Ubuntu 18.04.
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Title:
Screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s
13
I have the same problem. Using Lenovo Ideapad 720s 4k screen, i7-8550U; Intel
UHD Graphics 620
I have tried to install:
- Ubuntu 18.04.1
- Ubuntu 18.10
- Elementary OS 5.0
- Fedora (latest version)
Just need to install Windows then ...
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Same here.
Ubuntu 18.04, just installed on Razer Blade Stealth. With this flicker it's
just impossible to use it. Crap...
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Title:
Similar bug, simlar hardware, in the freedesktop.org system here:
https://bugs.freedesktop.org/show_bug.cgi?id=108132
There is a screen flicker video attached which looks the same as mine.
Thanks to midskavid above for spotting this.
** Bug watch added: freedesktop.org Bugzilla #108132
https
Sadly not! The slightly older model (also 4k but older rev) worked fine
with the standard install so my intention is to use that (long story but
it has windows only at the moment). Really I wanted the newer 4-core
one running linux but I couldn't justify the time investigating.
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I have Lenovo Ideapad 720s 4k screen, i7-8550U; UHD Graphics 620
(Kabylake GT2) and I am facing the exact same issue in it. The issue is
deep rooted, as I have tried fedora, Mint, etc and there is simply no
escape. But it works perfectly on a windows machine.
Were you able to figure out a workarou
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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This change was made by a bot.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Screen flicker Intel UHD graph
you may try drm-next or drm-intel-next from the mainline kernels ppa,
but if those won't help then you'd better file a bug upstream at
bugs.freedesktop.org (DRI -- drm/intel)
** Package changed: xserver-xorg-video-intel (Ubuntu) => linux (Ubuntu)
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Horrible screen flicker from login screen and after login. 18.04.1 LTS.
I have two similar laptops, both Lenovo Ideapad 720s 13IKB,
model 81A8 - Core i5 7200U - Intel HD Graphics 620 Rev 02 - works fine.
model 81BV - Core i5 8250U - Intel UHD Graphics 620
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