On 10/12/24 1:29 PM, Van Svensson wrote:
> Has anyone successfully managed to get this working on Ubuntu 24.04? I
> tried the Mainline build of kernel 6.11
> (https://kernel.ubuntu.com/mainline/v6.11/), but the dell-uart-backlight
> is not present. When looking at Ubuntu 22.04 I see that it is incl
Has anyone successfully managed to get this working on Ubuntu 24.04? I
tried the Mainline build of kernel 6.11
(https://kernel.ubuntu.com/mainline/v6.11/), but the dell-uart-backlight
is not present. When looking at Ubuntu 22.04 I see that it is included
in the linux-modules-extra package, but that
Hans,
Thanks so much for your detailed reply!
Cheers, Al
On 10/2/24 6:26 AM, Hans de Goede wrote:
> Reading this bug-report the issue seems to be that dell-uart-backlight
> is non-functional in the 6.5.y kernels and completely missing in the
> 24.04 6.8.y kernels. While in Ubuntu 23.04 with its
Reading this bug-report the issue seems to be that dell-uart-backlight
is non-functional in the 6.5.y kernels and completely missing in the
24.04 6.8.y kernels. While in Ubuntu 23.04 with its 6.2 kernel dell-
uart-backlight is present and functional.
The problem is that Canonical / Ubuntu wrote th
I am fine with mine for now. But what i was saying is that if there were
more users of DELL AIO with Ubuntu it might be easier to notify the devs
about this bug and others :)
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On 8/14/24 12:31 PM, Pierre-Benoit MERLAND wrote:
> I think you are right. But maybe in time we might be lucky and noticed
> by developers for a fix ;-)
>
> But i dont think DELL AIO are very popular. So...
>
I have the 27" AIO, and I love it.
Cheers, Al
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heynn...@gmail.com
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I think you are right. But maybe in time we might be lucky and noticed
by developers for a fix ;-)
But i dont think DELL AIO are very popular. So...
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On 8/13/24 10:52 AM, Pierre-Benoit MERLAND wrote:
> If i am correct, linux-generic-hwe-22.04 now offers 6.8.0-40-generic
> instead of 6.5.xx but sadly no dell-uart-backlight kernel module is
> present.
>
Thanks for the update. I'm running 6.8.0-40 on 24.04 now. Still no
kernel module. Sigh. It may
If i am correct, linux-generic-hwe-22.04 now offers 6.8.0-40-generic
instead of 6.5.xx but sadly no dell-uart-backlight kernel module is
present.
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Pierre,
Nothing new to report. Until Canonical puts the dell-uart-backlight
kernel module back into the distribution, and fixes the
brightness/backlight code, we'll have to use xrandr to do it manually...
xrandr_brightness.sh, set properties to "execute as a program", right-
click and select "run
Hi there,
Any news on this maybe ?
Bug is still present with 6.5.0-45-generic
Thanks
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Title:
Can't control display backlight in 24.04 on Dell A
I personally did not try to install 23.04 and anything above 22.04 LTS.
Just 24.04 with a live usb and the bug was present.
At the moment every version of 6.5 kernel i updated to broke the
brightness slider. Maybe i missed a few version as for me, using the
5.15 GA kernel is good for now.
I hope
@neopbmubuntu
Yes, we have the same problem.
In my testing, in 23.04 everything worked. It all broke in 23.10 and
24.04.
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Title:
Can't control
Yes that's it.
Bug seems clearly related to use of 6.x kernel no matter the system
version as i am using Ubuntu 22.04.4 LTS and you are using a newer OS
version.
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@neopbmubuntu
Just to confirm, you have "acpi_backlight=vendor" in your
/etc/default/grub, and you did a "sudo update-grub", and there's still
nothing in /sys/class/backlight after a reboot with the 6.5 kernel?
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Using 5.15 kernel :
There is in /sys/class/backlight a dell_uart_backlight folder with 10
items in it.
Not sure it's really a folder, more a link to an other folder as i see this in
Nautilus properties :
../../devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:3a/DELL0501:00/backlight/dell_uart_b
@neopbmubuntu
The dell-uart-backlight is there, as it needs to be.
re: and directory /sys/class/backlight/ is empty.
All of that, using 6.5.0-41.
If i use 5.15 kernel, class/backlight folder is not empty
What do you see in /sys/class/backlight in either case?
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Here is the result of the ls command :
ls -alR /lib/modules/$(uname -r)/ | grep dell
-rw-r--r-- 1 root root 69057 juin 3 12:09 dell-smm-hwmon.ko
drwxr-xr-x 3 root root 4096 juin 28 18:25 dell
/lib/modules/6.5.0-41-generic/kernel/drivers/platform/x86/dell:
-rw-r--r-- 1 root root 95489 juin
** Description changed:
Ubuntu 23.10/24.04
Dell Inspiron 7700 AIO
6.5.0-35-generic/6.8.0-31-generic
X11
https://askubuntu.com/questions/1514988/backlight-brightness-not-
working-in-ubuntu-23-10-24-04-on-dell-7700-aio
lsb_release -rd
No LSB modules are available.
Description
@neopbmubuntu
re: I havent checked /sys/class/backlight wile i was using 6.x kernel
Please do so and let me know what's there.
re: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux
acpi_backlight=vendor"
This would be correct.
Also show me:
ls -alR /lib/modules/$(uname -r)/ | grep dell
@ heynnema
I'havent checked /sys/class/backlight wile i was using 6.x kernel.
With 6.x kernel, adding acpi_backlight=vendor" to /etc/default/grub did not
fixed things for me.
Also tried :
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor"
and
GRUB_CMDLINE_LINUX_DEFAU
@neopbmubuntu What do you see in /sys/class/backlight? Have you tried
adding "acpi_backlight=vendor" to your /etc/default/grub?
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Title:
Can't con
Hi there,
Same for me using Ubuntu 22.04.4 LTS with my Dell Inspiron 5400 AIO.
Last kernel tested is linux-generic-hwe-22.04, so 6.5.0-41 at this time, i cant
adjust brightness. The slider is no longer visible.
So for now i stick with 22.04 and 5.15 GA kernel. As everything is
working well with
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: linux (Ubuntu)
Status: New => Confirmed
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Title:
Can'
Anybody?
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Title:
Can't control display backlight in 24.04 on Dell AIO system
To manage notifications about this bug go to:
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** Description changed:
Ubuntu 23.10/24.04
Dell Inspiron 7700 AIO
6.5.0-35-generic/6.8.0-31-generic
X11
https://askubuntu.com/questions/1514988/backlight-brightness-not-
working-in-ubuntu-23-10-24-04-on-dell-7700-aio
lsb_release -rd
No LSB modules are available.
Description
** Description changed:
Ubuntu 23.10/24.04
Dell Inspiron 7700 AIO
6.5.0-35-generic/6.8.0-31-generic
X11
https://askubuntu.com/questions/1514988/backlight-brightness-not-
working-in-ubuntu-23-10-24-04-on-dell-7700-aio
lsb_release -rd
No LSB modules are available.
Description
** Description changed:
Ubuntu 23.10/24.04
Dell Inspiron 7700 AIO
6.5.0-35-generic/6.8.0-31-generic
X11
https://askubuntu.com/questions/1514988/backlight-brightness-not-
working-in-ubuntu-23-10-24-04-on-dell-7700-aio
lsb_release -rd
No LSB modules are available.
Description
** Description changed:
Ubuntu 23.10/24.04
Dell Inspiron 7700 AIO
6.5.0-35-generic/6.8.0-31-generic
X11
+
+ https://askubuntu.com/questions/1514988/backlight-brightness-not-
+ working-in-ubuntu-23-10-24-04-on-dell-7700-aio
lsb_release -rd
No LSB modules are available.
Description
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