Thanks Amrits
I’ve done the same. The nvidia-bug-report.sh was run first with the v470 driver which has the backlight on. I then progressively installed newer drivers (fairly easy to do in Gentoo Linux) and booted into them. None of them have the backlight on. The laptop display is too dim to use. I have reverted to the v470 driver.
Hi Amrits,
Yes, brightness control works perfectly under Windows 10 and 11.
Windows boots up at full brightness. Display settings has a slider for adjusting brightness, which also works.
However, even at its LOWEST brightness setting, Windows is still brighter than Ubuntu wiith the Nvidia 525 driver, at HIGHEST brightness setting.
Thanks for checking-in. I tried NVidia Driver version 560.35.03-r1.
It is still DARK. Sorry. No good.
I’ve reverted to version 470.256.02-r1 (where it seems i’m stuck).
I’ve taken 4 photos. One for each 560 vs 470
and 2 of the NVidia stickers on this Razer Laptop - noting the 4K IGZO 18" display 3840x2160 pixels and G-Sync is STILL a very good display - as good as it gets in terms of Razer Laptops. The GPU is a GTX1080, which still holds-up for my work.
That is, i’ve looked at the new/latest Razer Laptops, and can’t see the benefit in spending $6K – compared to the resolution/specs of this display. The problem, despite all the NVidia Stickers, is the driver is stuck at v470. I’m keen to gain access to better/new/latest Vulkan drivers.
Could you pls escalate this within NVidia?
With access to the source code, could someone inside NVidia slice/compare 470 vs 560 to discover how/why the backlight is no longer lit?
My phone camera does a bit of ‘brightening’ on the darker display, to attempt a better photo. The laptop display is too dark to work with.
This is version 470.256.02-r1 (laptop display on right ok)
UE5.5 logs says:
[2024.12.15-05.17.25:707][ 0]LogAVCodecs: Error: Error: Detected driver version (471.00) is older than required (530.41). Please update your drivers!
Would there be a possibility the Open Source version of the driver has the backlight code? Was there mention about a mod to nvidia-modeset-linux.c ?
Is there anyone at NVidia looking at this, at all?
I have the exact same issue using a Razer Blade Pro 17” (2016), which has a GTX 1080.
On v470, it is stuck at max brightness.
On any later driver version, brightness control works but internal display is way too dim to be usable.
External monitors are not affected.
My setup uses Wayland rather than Xorg, and Wayland is not compatible with v470.
This implies I cannot really use Linux on this machine until this issue is resolved (this is my ‘to go’ machine, so I cannot assume I will have an external monitor available).
unless Wayland is mandatory for you, changing back to X11 should be possible.
On v470, I have the following script which sets the brightness (and works).
I have a 2nd monitor on HDMI-0. This script sets brightness on both laptop screen and the monitor.
#!/bin/bash
#
# Set screen brightness
#
if [ $# != 1 ]; then
echo "Set screen brightness"
echo "Usage: $0 val (where val is 0..1)"
exit
fi
# swap any comma for a dot (fix a typo)
val=`echo $1|sed -s 's/\,/\./'`
/usr/bin/xrandr --output DP-0 --brightness $val
/usr/bin/xrandr --output HDMI-0 --brightness $val > /dev/null 2>&1
# Push a pop-up to mention the brightness change
if [ -x /usr/bin/notify-send ]; then
/usr/bin/notify-send "Set Screen Brightness to: $1"
fi
I’ve simply called the script “b”. Setting “b 0.5” sets mid-brightness.
PS. I tried v565.77 on the weekend; it’s still dark.
Have reverted to v470.256.02-r2
Gentoo issues this warning following v470 install
* Messages for package x11-drivers/nvidia-drivers-470.256.02-r2:
*
* Be warned/reminded that the 470.xx branch reached end-of-life and
* NVIDIA is no longer fixing issues (including security). Free to keep
* using (for now) but it is recommended to either switch to nouveau or
* replace hardware. Will be kept in-tree while possible, but expect it
* to be removed likely in late 2027 or earlier if major issues arise.
*
* Note that there is no plans to patch in support for kernels branches
* newer than 6.6.x which will be supported upstream until December 2026.
Are there any news on this? This bug is effectively rendering the Razer unusable for me:
On Linux I’m stuck with version 470 of the NVidia driver, which prevents me from using current versions of a lot of programs. What’s more, I can’t even update the system (KUbuntu), as the new Linux version wouldn’t allow me to keep using 470 (both on X and Wayland).
On Windows (dual boot), I’m stuck with Windows 10, as I can’t update to Windows 11. This will render the machine an expensive and unsellable paperweight in a few months.
Is there any hope this will get solved any time soon?
At present I worked around this issue by switching between drivers: nouveau when I do not have an external monitor at hand, nvidia driver when I do.
With nouveau, GPU performance sucks and brightness control is not working, but at least brightness itself makes the screen readable, and performance is good enough for desktop usage. Forget about gaming on the internal screen, though.
Not ideal, but better than dumping the machine, since windows 10 is on the way out and windows 11 is not supported on it.
At this point I doubt that nvidia will ever fix this issue, since they were are planning to actually drop support for the 10xx cards from their drivers.
