Thanks Petr,
I have added your suggestion to the Wiki Tips and Trick page
https://wiki.trinitydesktop.org/Tips_And_Tricks#Troubleshooting
Cheers
Michele
On 2023/05/12 09:50 PM, Petr Palacký via tde-users wrote:
Hi all,
for everyone who has the same problem with setting the display brightness with the nvidia
driver (in
my case "390 legacy"), I found the following solution to "revive" the
display brightness:
In "/etc/default/grub" add "acpi_backlight=vendor" and/or
"nvidia.NVreg_EnableBacklightHandler=1" to
the variable GRUB_CMDLINE_LINUX_DEFAULT:
GRUB_CMDLINE_LINUX_DEFAULT="quiet nvidia.NVreg_EnableBacklightHandler=1
acpi_backlight=vendor".
... and reboot. With this setting, controlling the display brightness using TDE and
multimedia (or
Fn combination) keys should work (works for me).
Cheers
--
Petr Palacky
> On Friday 12 of May 2023 09:58:30 Petr Palacký via tde-users wrote:
>> Hi Michele,
>>
>> So everything is completely different in the end.
>>
>> I've done a bunch of tests and installs and the only problem is the
>> Nvidia 390 legacy drivers. If I use the nouveau drivers on my existing
>> installation, the brightness can be controlled without any problems, but
>> when I use the official nvidia (390 legacy) drivers, the brightness
>> cannot be controlled.
>>
>> So it's definitely not a TDE problem. It's a problem of nvidia drivers.
>>
>> I apologize for the confusion. I didn't think of this at all during the
>> inquiry.
>>
>> Cheers
>> --
>> Petr Palacky