This bug is related to screen flickering when DPMS is enabled and is not
related to mouse movement. Flickering looks like a decrease in the
screen refresh rate several times.
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** Summary changed:
- [i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0
intel_idle.max_cstate=2 are added) (fixed in 5.17.7 and later)
+ Screen flickering in Ubuntu
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@nrjrasaxena
I can recommend this contact https://launchpad.net/~oibaf
He has been coding something similar for a long time
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https://bugs.launchpad.net/bugs/1958191
ing 'intel_iommu=igfx_off' to the kernel
command line has been found to effectively eliminate the flickering issue.
This patch proposes the same behavior as 'intel_iommu=igfx_off' and apply the
rule to all Intel SKL GPU IDs.
[Test]
1. Boot up to desktop with 6.8.0-x ker
ing 'intel_iommu=igfx_off' to the kernel
command line has been found to effectively eliminate the flickering issue.
This patch proposes the same behavior as 'intel_iommu=igfx_off' and apply the
rule to all Intel SKL GPU IDs.
[Test]
1. Boot up to desktop with 6.8.0-x kernels
been found to effectively eliminate the flickering issue.
This patch proposes the same behavior as 'intel_iommu=igfx_off' and apply the
rule to all Intel SKL GPU IDs.
[Test]
1. Boot up to desktop with 6.8.0-x kernels
2. Moving cursor around the desktop
3. There should be no fli
Comments say that the flickering issue has not changed. Should I upgrade
to Ubuntu 24.04.1 LTS, will it change the situation?
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https://bugs.launchpad.net/bugs/1958191
the kernel
command line has been found to effectively eliminate the flickering issue.
This patch proposes the same behavior as 'intel_iommu=igfx_off' and apply the
rule to all Intel SKL GPU IDs.
[Test]
1. Boot up to desktop with 6.8.0-x kernels
2. Moving cursor around the deskt
same behavior as 'intel_iommu=igfx_off' and apply the
rule to all Intel SKL GPU IDs.
[Test]
1. Boot up to desktop with 6.8.0-x kernels
2. Moving cursor around the desktop
3. There should be no flicker while cursor is moving
[Where problems could occur]
For virtualized environmen
You need to look at the source code of the graphics driver and kernel module or
contact the person responsible to localize the problem. In my case, disabling
DPMS turned out to be a temporary solution.
You can do this either by using the X config, or by installing XScreenSaver, or
by trying the
Unfortunately, I don't have any free time. First, you need to localize
the problem. Are you the owner of the source code or just a user?
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@nrjrasaxena
Please provide the console command output:
lspci -k | grep -EA3 'VGA|3D controller'
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Title:
[i915] Screen flic
** No longer affects: linux-hwe-6.8 (Ubuntu Lunar)
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https://bugs.launchpad.net/bugs/1958191
Title:
[i915] Screen flickering in Ubuntu 22.04 (until i915.enable_dc=0
** Also affects: linux-hwe-6.8 (Ubuntu)
Importance: Undecided
Status: New
** Changed in: linux-hwe-6.8 (Ubuntu)
Status: New => Confirmed
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https://bug
The current situation is critical and does not allow using Ubuntu. It is
also impossible to lock the screen.
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https://bugs.launchpad.net/bugs/1958191
Title:
[i915]
,
| ^~~
| |
| struct task_struct *
...
[Fix]
Apply the attached fix.
[How to test]
Install (and build) the patched packet
Asus N550JV (NVIDIA GeForce GT 750M and Intel(R) HD Graphics 4600).
Flickering appears after the screen goes to sleep.
I'm using Ubuntu 22.04.4 LTS.
00:02.0 VGA compatible controller: Intel Corporation 4th Gen Core Processor
Integrated Graphics Controller (rev 06)
Subsystem: ASUSTeK Computer In
I have a problem with 2.1 sound on Realtek High Definition Audio (2.1):
00:03.0 Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor
HD Audio Controller (rev 06)
Subsystem: Intel Corporation Xeon E3-1200 v3/4th Gen Core Processor HD Audio
Controller
Kernel driver in use: snd_
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