This bug was fixed in the package linux-oem-5.6 - 5.6.0-1010.10
---
linux-oem-5.6 (5.6.0-1010.10) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1010.10 -proposed tracker (LP: #1876025)
* built-using constraints preventing uploads (LP: #1875601)
- temporarily drop
This bug was fixed in the package linux-oem-5.6 - 5.6.0-1010.10
---
linux-oem-5.6 (5.6.0-1010.10) focal; urgency=medium
* focal/linux-oem-5.6: 5.6.0-1010.10 -proposed tracker (LP: #1876025)
* built-using constraints preventing uploads (LP: #1875601)
- temporarily drop
** Also affects: linux-oem-5.6 (Ubuntu)
Importance: Undecided
Status: New
** Also affects: linux (Ubuntu Focal)
Importance: Undecided
Status: Fix Released
** Also affects: linux-oem-5.6 (Ubuntu Focal)
Importance: Undecided
Status: New
** Changed in: linux-oem-5.6
This bug was fixed in the package linux - 5.4.0-24.28
---
linux (5.4.0-24.28) focal; urgency=medium
* focal/linux: 5.4.0-24.28 -proposed tracker (LP: #1871939)
* getitimer returns it_value=0 erroneously (LP: #1349028)
- [Config] CONTEXT_TRACKING_FORCE policy should be unset
** Description changed:
+ === SRU Justification ===
+ [Impact]
+ PWM backlight doesn't work on Spectre x360 Convertible 13t-aw100.
+
+ [Fix]
+ Use DPCD to control backlight instead of PWM.
+
+ [Test]
+ With this patch applied, user confirmed the issue is fixed.
+
+ [Regression Potential]
+
Thank you!
On Sun, Mar 22, 2020 at 11:45 PM Kai-Heng Feng
wrote:
> https://lkml.org/lkml/2020/3/23/29
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1860303
>
> Title:
> Backlight brightness cannot be adjusted
https://lkml.org/lkml/2020/3/23/29
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Title:
Backlight brightness cannot be adjusted using keys
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It works! Keyboard keys adjust brightness and I found no obvious issues
otherwise
dmesg attached for reference
On Fri, Mar 13, 2020 at 1:10 PM Kai-Heng Feng
wrote:
> Can you please test this kernel:
> https://people.canonical.com/~khfeng/lp1860303/
>
> --
> You received this bug notification
Can you please test this kernel:
https://people.canonical.com/~khfeng/lp1860303/
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https://bugs.launchpad.net/bugs/1860303
Title:
Backlight brightness cannot be adjusted using keys
To
Is this what you need?
On Mon, Mar 9, 2020 at 7:25 AM Kai-Heng Feng
wrote:
> Please test latest drm-tip kernel with kernel parameter "drm.debug=0xe"
> and attach dmesg:
> https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/
>
> --
> You received this bug notification because you are
Please test latest drm-tip kernel with kernel parameter "drm.debug=0xe" and
attach dmesg:
https://kernel.ubuntu.com/~kernel-ppa/mainline/drm-tip/current/
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I got it figured out and the kernel at
https://people.canonical.com/~acelan/bugs/lp1861521/ did not fix the
issue.
On Fri, Mar 6, 2020 at 7:48 PM Jared Young wrote:
> I installed from the .deb files and this did not make a difference for the
> backlight, however the volume keys on the keyboard
I installed from the .deb files and this did not make a difference for the
backlight, however the volume keys on the keyboard no longer work.
I am not experienced in testing different kernels so it is possible that I
messed up the install. I did not apply the .patch files.
On Tue, Mar 3, 2020
Can you please test kernel here:
https://people.canonical.com/~acelan/bugs/lp1861521/
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Title:
Backlight brightness cannot be adjusted using keys
There are no extensions or scripts that I have installed to handle the
backlight.
I did not include acpi_backlight=vendor as a kernel parameter at the same
time as i915.enable_dpcd_backlight=1. The only kernel parameters currently
are "i915.enable_dpcd_backlight=1 quiet splash". Should I try both
What if acpi_backlight=vendor is removed? Is there any extension or
script installed to handle the backlight?
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Title:
Backlight brightness
This kernel parameter does make the backlight respond to keyboard input, as
well as manually changing the brightness values in
`/sys/class/backlight/intel_backlight/brightness`. However the behavior is
odd. Adjusting the brightness using the keyboard results in erratic changes
rather than a smooth
Does kernel parameter "i915.enable_dpcd_backlight=1" help?
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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Title:
Yes. AMOLED multitouch (3840 x 2160) panel
On Tue, Feb 4, 2020, 1:06 AM Kai-Heng Feng
wrote:
> Is it an OLED panel?
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1860303
>
> Title:
> Backlight brightness cannot be
Is it an OLED panel?
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Title:
Backlight brightness cannot be adjusted using keys
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