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
I've this very same problem. I'm using Ubuntu 18.04.
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https://bugs.launchpad.net/bugs/1785912
Title:
Screen flicker Intel UHD graphics 620 (rev 07) Lenovo Ideapad 720s
13IKB 81BV
To
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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https://bugs.launchpad.net/bugs/1785912
Title:
Screen
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
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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You received
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
** Changed in: linux (Ubuntu)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
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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Tried mainline kernel 4.18 and it didn't help: the flickering looks the
same to me.
pc14:/sys/module/i915$ modinfo i915
filename:
/lib/modules/4.18.0-041800-generic/kernel/drivers/gpu/drm/i915/i915.ko
license:GPL and additional rights
description:Intel Graphics
author:
The machine is newly installed so I can try things out without too much
stress if it helps.
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https://bugs.launchpad.net/bugs/1785912
Title:
Screen flicker Intel UHD graphics 620 (rev
** Description changed:
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 Rev 07
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