brightness control not possible after nvidia driver install

[Member pipfranto]

is there any way to get nvbrightness working with the proprietary driver? if not how can i roll back the proprietary driver and revert to the original? Also what are the disadvantages of the open source driver?

[Member Xecure]

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Is nvbrightness for changing the screen brightness or is it for some video game stuff? Is this a laptop?
Have you tried “Backlight Brightness”, the default app to control screen brigtness in antiX (for laptop monitors)? And “Screenlight”, just to see if it can control monitor brigthness (in case Backlight Brightness doesn’t work)?

If this is related to rendedirng or videogame stuff, no idea.

pipfranto wrote:

if not how can i roll back the proprietary driver and revert to the original?

Uninstalling the nvidia driver and unblacklisting nouveau driver (the open source driver) from /etc/modprobe.d/ (some blacklist file).

pipfranto wrote:

Also what are the disadvantages of the open source driver?

It depends on how new/old is your card and how well the driver will support it.
Worst case scenario: Smaller resolution, worse performance in games, or maybe less options in arandr for different screens.
For me, the bouveau works better than nvidia (but I don’t play games).

antiX Live system enthusiast.
General Live Boot Parameters for antiX.

[Moderator caprea]

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pipfranto wrote:

how can i roll back the proprietary driver and revert to the original?

It depends on how you installed it.
If you have installed the driver with antiX’s own nvidia-installer from control-centre, the uninstall command is
sudo ddm-mx -p nvidia
It will do everything necessary including the removal of the blacklist-file.

If you don’t notice any disadvantages of the open source driver then there are probably none.

For me with nvidia-driver the brightness control works

control-centre > hardware > Backlight Brightness

[Member pipfranto]

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when i go onto brightness control i get:
backlight-brightness: No controller found
also when i go to: Preferences > Nvidia X Server Settings (34xx legacy version) > OpenGL/GLX Information it crashes the Nvidia XServer settings app.

i installed the proprietary driver because i thought it would improve performance, have not been able to get the games running yet so i cant tell if there are any differences.

hardware info output for my card:
NVIDIA Corporation C79 [GeForce 9400M G] [10de:0866] (rev b1)

[Moderator caprea]

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How did you install the nvidia-driver ?
If it crashes the settings on OpenGL/GLX Information, it looks like it is not working properly.
Please post
inxi -Gxxx

What may be is the case,there was a problem with the nvidia-legacy-driver from debian.It was loading the wrong glx-module.The antiX-installer has a baked in solution and will prevent this error.You can also try to do it manually.
https://forum.mxlinux.org/viewtopic.php?p=536573#p536573

But maybe better deinstall your installed version and install again with the antiX-installer.

[Member pipfranto]

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i used the nvidia driver installer from the antix control center to install the nvidia driver.
this is my output:

$ inxi -Gxxx
Graphics:
Device-1: NVIDIA C79 [GeForce 9400M G] vendor: Apple driver: nvidia
v: 340.108 bus ID: 02:00.0 chip ID: 10de:0866
Display: x11 server: X.Org 1.20.4 driver: nvidia resolution: 1280×800~60Hz
OpenGL: renderer: N/A v: N/A direct render: N/A

[Moderator caprea]

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pipfranto wrote:

OpenGL: renderer: N/A v: N/A direct render: N/A

Something is wrong. There’s no glx-rendering.

You could post the logfile of the nvidia-installer, it’s /var/log/ddm.log
and the logfile of Xorg, /var/log/Xorg.log
and hopefully we can find a hint there.

What you could also try, run the nvidia-installer again and chose the backports-driver this time.

[Member pipfranto]

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it wont let me upload the files for security reasons, and they are too big to paste in here.

here are the errors in the xorg.log file:

[ 24.650] (EE) NVIDIA(0): Failed to initialize the GLX module; please check in your X
[ 24.650] (EE) NVIDIA(0): log file that the GLX module has been loaded in your X
[ 24.650] (EE) NVIDIA(0): server, and that the module is the NVIDIA GLX module. If
[ 24.650] (EE) NVIDIA(0): you continue to encounter problems, Please try
[ 24.650] (EE) NVIDIA(0): reinstalling the NVIDIA driver.

i used the “MX Test 340.108-6~bpo10+1” from backports Main repos or debian-backports instead of “Main 340.108-3~deb10u1” i guess this was a mistake?

[Moderator caprea]

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I just tried it and on my laptop both drivers work.

What I would recommend to do.

Deinstall the driver with
sudo ddm-mx -p nvidia

reboot

Now the nouveau-driver should be used again. You can look if this is the case with
inxi -Gxxx

Then use again the nvidia-installer from control-centre , let it update the sources and don’t choose backports, just install the normal one Main 340.108-3~deb10u1,like you already mentioned.

If this doesn’t work either, you probably have to stick with the nouveau driver. Although I really wonder why it should not work for your card.

[Member pipfranto]

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creating lock …
===================================
Install drivers for: nvidia
Start at (m/d/y): 07/26/2020 10:28:26
===================================

========================================
========================================

To restore open source drivers use:
sudo ddm-mx -p nvidia

========================================
========================================

Refreshing Sources with apt-get update
Candidate is: nvidia-legacy-340xx-driver 340.108-3~deb10u1
Installed is: nvidia-legacy-340xx-driver (none)
Would you like to check debian-backports for a later version?

Yes or No?

1: Yes
2: No

Enter Number of selection
Ok…
Refreshing Sources with apt-get update
Installing latest nvidia-detect package
Reading package lists…
Building dependency tree…
Reading state information…
The following NEW packages will be installed:
nvidia-detect
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Main repo candidate is: 340.108-3~deb10u1
Debian backports candidate is: 340.108-6~bpo10+1
Installed is: (none)
Which driver do you wish to install

Main repos or debian-backports?

1: Main 340.108-3~deb10u1

2: MX Test 340.108-6~bpo10+1

3: Exit

Enter Number of selection
Ok…
Need driver: nvidia-legacy-340xx-driver 340.108-6~bpo10+1
packages to install are nvidia-legacy-340xx-driver nvidia-settings-legacy-340xx nvidia-legacy-340xx-kernel-dkms nvidia-xconfig
Frontend:
Nvidia command = apt-get install –install-recommends –reinstall -y -t buster-backports nvidia-legacy-340xx-driver nvidia-settings-legacy-340xx nvidia-legacy-340xx-kernel-dkms nvidia-xconfig
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The following additional packages will be installed:
glx-alternative-mesa glx-alternative-nvidia glx-diversions
libegl1-nvidia-legacy-340xx libgl1-nvidia-legacy-340xx-glx
libnvidia-legacy-340xx-eglcore libnvidia-legacy-340xx-glcore
libnvidia-legacy-340xx-ml1 nvidia-installer-cleanup nvidia-kernel-common
nvidia-legacy-340xx-alternative nvidia-legacy-340xx-driver-bin
nvidia-legacy-340xx-driver-libs nvidia-legacy-340xx-kernel-support
nvidia-legacy-340xx-vdpau-driver nvidia-modprobe nvidia-support update-glx
xserver-xorg-video-nvidia-legacy-340xx
Suggested packages:
nvidia-driver
Recommended packages:
nvidia-persistenced nvidia-legacy-340xx-driver-libs-i386
libgles1-nvidia-legacy-340xx libgles2-nvidia-legacy-340xx
libnvidia-legacy-340xx-cfg1
The following NEW packages will be installed:
glx-alternative-mesa glx-alternative-nvidia glx-diversions
libegl1-nvidia-legacy-340xx libgl1-nvidia-legacy-340xx-glx
libnvidia-legacy-340xx-eglcore libnvidia-legacy-340xx-glcore
libnvidia-legacy-340xx-ml1 nvidia-installer-cleanup nvidia-kernel-common
nvidia-legacy-340xx-alternative nvidia-legacy-340xx-driver
nvidia-legacy-340xx-driver-bin nvidia-legacy-340xx-driver-libs
nvidia-legacy-340xx-kernel-dkms nvidia-legacy-340xx-kernel-support
nvidia-legacy-340xx-vdpau-driver nvidia-modprobe
nvidia-settings-legacy-340xx nvidia-support nvidia-xconfig update-glx
xserver-xorg-video-nvidia-legacy-340xx
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Setting up libegl1-nvidia-legacy-340xx:amd64 (340.108-6~bpo10+1) …
Setting up libgl1-nvidia-legacy-340xx-glx:amd64 (340.108-6~bpo10+1) …
[?1049h[22;0;0t[1;24r[4l[?25l(B[m[37m[40m[1;24r[H[2J[1;1H[1m[37m[44m [2;1H [3;1H [4;1H [5;1H [6;1H [7;1H [8;1H [9;1H [10;1H [11;1H [12;1H [13;1H [14;1H [15;1H [16;1H [17;1H [18;1H [19;1H [20;1H [21;1H [22;1H [23;1H [24;1H [24;79H [4h [4l[1;1H(B[m[37m[44mPackage configuration[6;3H[30m[47m┌──────────┤ [31mConfiguring libgl1-nvidia-legacy-340xx-glx:amd64[30m ├───────────┐[7;3H│ │[1m[37m[40m [8;3H(B[m[30m[47m│ Conflicting nouveau kernel module loaded │[1m[37m[40m [9;3H(B[m[30m[47m│ │[1m[37m[40m [10;3H(B[m[30m[47m│ The free nouveau kernel module is currently loaded and conflicts with │[1m[37m[40m [11;3H(B[m[30m[47m│ the non-free nvidia kernel module. │[1m[37m[40m [12;3H(B[m[30m[47m│ │[1m[37m[40m [13;3H(B[m[30m[47m│ The easiest way to fix this is to reboot the machine once the │[1m[37m[40m [14;3H(B[m[30m[47m│ installation has finished. │[1m[37m[40m [15;3H(B[m[30m[47m│ │[1m[37m[40m [16;3H(B[m[30m[47m│ [37m[41m<Ok>[30m[47m │[1m[37m[40m [17;3H(B[m[30m[47m│ │[1m[37m[40m [18;3H(B[m[30m[47m└─────────────────────────────────────────────────────────────────────────┘[1m[37m[40m [19;4H [16;38H[?12l[?25h[24;1H(B[m[37m[40m(B[m[39;49m
[K
[?1049l[23;0;0tSetting up xserver-xorg-video-nvidia-legacy-340xx (340.108-6~bpo10+1) …
Setting up nvidia-legacy-340xx-vdpau-driver:amd64 (340.108-6~bpo10+1) …
Setting up nvidia-legacy-340xx-kernel-support (340.108-6~bpo10+1) …
Setting up nvidia-settings-legacy-340xx (340.108-1~deb10u1) …
Setting up nvidia-legacy-340xx-driver-libs:amd64 (340.108-6~bpo10+1) …
Setting up libnvidia-legacy-340xx-ml1:amd64 (340.108-6~bpo10+1) …
Setting up nvidia-legacy-340xx-driver-bin (340.108-6~bpo10+1) …
Processing triggers for nvidia-legacy-340xx-alternative (340.108-6~bpo10+1) …
update-alternatives: updating alternative /usr/lib/nvidia/legacy-340xx because link group nvidia has changed slave links
Setting up nvidia-legacy-340xx-kernel-dkms (340.108-6~bpo10+1) …
Loading new nvidia-legacy-340xx-340.108 DKMS files…
Building for 4.9.212-antix.1-amd64-smp
Building initial module for 4.9.212-antix.1-amd64-smp
Done.

nvidia-legacy-340xx.ko:
Running module version sanity check.
– Original module
– No original module exists within this kernel
– Installation
– Installing to /lib/modules/4.9.212-antix.1-amd64-smp/updates/dkms/

nvidia-legacy-340xx-uvm.ko:
Running module version sanity check.
– Original module
– No original module exists within this kernel
– Installation
– Installing to /lib/modules/4.9.212-antix.1-amd64-smp/updates/dkms/

depmod…….

DKMS: install completed.
Setting up nvidia-legacy-340xx-driver (340.108-6~bpo10+1) …
Processing triggers for libc-bin (2.28-10) …
Processing triggers for initramfs-tools (0.133+deb10u1) …
update-initramfs: Generating /boot/initrd.img-4.9.212-antix.1-amd64-smp
cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries
nor crypto modules. If that’s on purpose, you may want to uninstall the
‘cryptsetup-initramfs’ package in order to disable the cryptsetup initramfs
integration and avoid this warning.
I: The initramfs will attempt to resume from /dev/sdb3
I: (UUID=69058c69-3755-425c-9023-d9cbe682b1ea)
I: Set the RESUME variable to override this.
Processing triggers for update-glx (1.1.0~bpo10+1) …
Processing triggers for glx-alternative-nvidia (1.1.0~bpo10+1) …
update-alternatives: using /usr/lib/nvidia to provide /usr/lib/glx (glx) in auto mode
Processing triggers for libc-bin (2.28-10) …
Processing triggers for initramfs-tools (0.133+deb10u1) …
update-initramfs: Generating /boot/initrd.img-4.9.212-antix.1-amd64-smp
cryptsetup: WARNING: The initramfs image may not contain cryptsetup binaries
nor crypto modules. If that’s on purpose, you may want to uninstall the
‘cryptsetup-initramfs’ package in order to disable the cryptsetup initramfs
integration and avoid this warning.
I: The initramfs will attempt to resume from /dev/sdb3
I: (UUID=69058c69-3755-425c-9023-d9cbe682b1ea)
I: Set the RESUME variable to override this.
Writing Menu: icewm
Writing Menu: fluxbox
Writing Menu: jwm
New X configuration file written to ‘/etc/X11/xorg.conf’

mv /usr/lib/xorg/modules/extensions/libglx.so /usr/lib/xorg/modules/extensions/libglx.so.bak
ln -s /usr/lib/nvidia/legacy-340xx/libglx.so.340.108 /usr/lib/xorg/modules/extensions/libglx.so
Finished

Press <Enter> to exit

[Moderator caprea]

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The installer-logfile is completely ok, at least I can’t find anything unusual. But it is the log of the backported driver.
Have you tried to uninstall it and then install the other driver as described above ?

[Member pipfranto]

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i have reinstalled the non-backported driver and i get this:

$ inxi -Gxxx
Graphics:
Device-1: NVIDIA C79 [GeForce 9400M G] vendor: Apple driver: nvidia
v: 340.108 bus ID: 02:00.0 chip ID: 10de:0866
Display: x11 server: X.Org 1.20.4 driver: nvidia resolution: 1280×800~60Hz
OpenGL: renderer: GeForce 9400M/integrated/SSE2 v: 3.3.0 NVIDIA 340.108
direct render: Yes

backlight brightness still doesn’t work though.

i tried installing the screenlight package as suggested to but i get:

E: Unable to locate package screenlight

[Moderator caprea]

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The package you are seaking is called screenlight-antix
It might is installed by default and can be accessed from terminal with

screenlight-menu.sh

The nvidia-driver is working now.Maybe someone else has an idea why you cannot adjust the brightness.
It’s a macbook, yes?

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