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Old 03-13-2020, 10:22 AM   #1
Pierre032020
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no brightness control on my vaio with nvidia driver installed


Dear,
I have an old laptop vaio fz31z with a nvidia geforce 8600m gs graphics card.
I reinstalled linux mint cinnamon 19.3 recently with the default "new" graphics drivers :
No problem with the brightness control with the fn+F5/F6 keys.
No problem with the brightness control in the taskbar.

Since I installed the nvidia drivers :
the fn+F5/F6 keys no longer work.
There is no longer an icon in the taskbar to adjust the brightness.
The brightness is at maximum at each start up.

This problem is not new on my PC, but I didn't use it much in linux because I had a dual boot with windows, it didn't cause me any problem.
There were many distributions installed on my pc (new instllations): ubuntu, xubuntu, linux mint mate, linux mint cinnamon, linux mint xfce.
On different versions (12lts, 14lts, 16lts, 18lts). The problem exists on each version.

Today I want to fix the problem because I use this pc daily on linux mint.
There are a lot of posts on the internet about this problem, but none of them worked for me.
Although I use linux regularly, I'm not good for the command line and I don't necessarily know what I'm doing when I'm doing tutorials.
Can you please help me?
 
Old 03-14-2020, 07:54 PM   #2
mrmazda
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What is it you do "regularly" with this laptop? Does what you do require NVidia's drivers? My XFX GeForce 8600 GT (not m, not laptop) does everything I need of it using pure FOSS, usually preferring the modesetting DDX over the nouveau DDX.

I know this is unlikely useful, but seems to me NVidia really isn't interested as much in properly supporting 10+ year old GPUs as it is in selling new ones, so regressions as new versions of distributions and drivers arrive come as no surprise to me.
 
Old 03-16-2020, 06:01 AM   #3
Pierre032020
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Dear,
"regularly" is "every day".
There is different problem with open driver :
example: the page goes beyond the TV screen (in second screen)=> I don't see the top and bottom of a software. I can't modificate him.

Sorry, I don't know what is "modesetting DDX" and "nouveau DDX".

There isn't regression because that it never worked. But since in linux there are always small modifications to be made for a software or other to work.
Maybe there is a solution for my laptop as for others.

Thank you
 
Old 03-16-2020, 09:25 AM   #4
Pierre032020
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I find this post :
https://bugs.launchpad.net/ubuntu/+s...tup/+bug/95444
and particulary this comment :
https://bugs.launchpad.net/ubuntu/+s...44/comments/75

I don't understand everything.

When I do this command :
acpi_listen

And I press fn+ once F5 (luminosity down) I have :
sony/hotkey SNY5001:00 00000001 00000010
video/brightnessdown BRTDN 00000087 00000000 K
sony/hotkey SNY5001:00 00000001 0000003b

And I press once fn+ once F6 (luminosity up) I have :
sony/hotkey SNY5001:00 00000001 00000011
video/brightnessdown BRTDN 00000086 00000000 K
sony/hotkey SNY5001:00 00000001 0000003b

But I don't know to exploit this
 
Old 03-16-2020, 10:33 AM   #5
mrmazda
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Quote:
Originally Posted by Pierre032020 View Post
There is different problem with open driver :
example: the page goes beyond the TV screen (in second screen)=> I don't see the top and bottom of a software. I can't modificate him.
In this case you should upload the log so we can examine it. Do this:
Code:
pastebinit /var/log/Xorg.0.log
That will provide a URL that you can paste here. Do it after uninstalling the proprietary NVidia driver and rebooting.

Quote:
Sorry, I don't know what is "modesetting DDX" and "nouveau DDX".
They are drivers for X, as opposed to the nouveau kernel driver that both depend on for their functionality to engage. They are the only FOSS drivers for NVidia GPUs that provide nice results.

Quote:
There isn't regression because that it never worked. But since in linux there are always small modifications to be made for a software or other to work.
Maybe there is a solution for my laptop as for others.
There may be more info about your hardware that would make a difference. In any type of xterm, not on a vtty, do this and paste the output here using code tags:
Code:
inxi -GxxSza
 
Old 03-16-2020, 12:13 PM   #6
Pierre032020
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Code:
xx@xx:~$ inxi -GxxSza
System:    Host: Lui Kernel: 5.3.0-40-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.4.8 wm: muffin 
           dm: LightDM Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic 
Graphics:  Device-1: NVIDIA G86M [GeForce 8600M GS] vendor: Sony driver: nvidia v: 340.107 bus ID: 01:00.0 chip ID: 10de:0425 
           Display: x11 server: X.Org 1.20.5 driver: nvidia unloaded: fbdev,modesetting,nouveau,vesa resolution: 1280x800~60Hz 
           OpenGL: renderer: GeForce 8600M GS/PCIe/SSE2 v: 3.3.0 NVIDIA 340.107 direct render: Yes

Last edited by Pierre032020; 03-16-2020 at 12:16 PM.
 
Old 03-16-2020, 12:17 PM   #7
Pierre032020
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here the result log file :
https://pastebin.com/Ne04U9qf
 
Old 03-16-2020, 12:54 PM   #8
mrmazda
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Quote:
Originally Posted by Pierre032020 View Post
here the result log file :
https://pastebin.com/Ne04U9qf
That shows the non-free NVidia driver is in use. As long as that is the case, I can be of little help.
 
Old 03-16-2020, 05:41 PM   #9
Pierre032020
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I reinstall "nv" driver :
https://pastebin.com/XmV3BK0k
 
Old 03-16-2020, 06:18 PM   #10
mrmazda
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Quote:
Originally Posted by Pierre032020 View Post
I reinstall "nv" driver :
https://pastebin.com/XmV3BK0k
That log shows the NV driver is not in use, and its use was not attempted. AFAIK, the NV driver is exclusively for antique hardware and antique kernels that are not supporting kernel modesetting (KMS). In any distro as new as 18.04LTS its use may not even be possible.

The log shows use of the upstream default X driver (DDX) that I use with all my NVidia GPUs: modesetting. It shows no errors discernible to me. Are your brightness controls now working?
 
Old 03-17-2020, 02:11 PM   #11
Pierre032020
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xx@xx:~$ inxi -GxxSza
System:
Host: Lui Kernel: 5.0.0-32-generic x86_64 bits: 64 compiler: gcc v: 7.4.0
Desktop: Cinnamon 4.4.5 wm: muffin dm: LightDM
Distro: Linux Mint 19.3 Tricia base: Ubuntu 18.04 bionic
Graphics:
Device-1: NVIDIA G86M [GeForce 8600M GS] vendor: Sony driver: nouveau
v: kernel bus ID: 01:00.0 chip ID: 10de:0425
Display: x11 server: X.Org 1.20.4 driver: modesetting unloaded: fbdev,vesa
resolution: 1280x800~60Hz
OpenGL: renderer: NV86 v: 3.3 Mesa 19.0.8 direct render: Yes
 
Old 03-17-2020, 02:24 PM   #12
Pierre032020
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Or do you see that the "nv" driver is not being used ?
which driver runs the graphics part in my laptop ?
what should I do ?
 
Old 03-17-2020, 02:27 PM   #13
Pierre032020
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yes control brightness working as I said in my first post
 
Old 03-17-2020, 03:14 PM   #14
mrmazda
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[QUOTE=Pierre032020;6101623]
Code:
Device-1: NVIDIA G86M [GeForce 8600M GS] vendor: Sony driver: nouveau  v: kernel
This shows the kernel is using its own nouveau driver to provide KMS functionality.

Quote:
Code:
x11 server: X.Org 1.20.4 driver: modesetting
This shows the Xorg foundation is running on the modesetting DDX, which requires the nouveau kernel driver for your GPU.

Quote:
Code:
OpenGL: renderer: NV86 v: 3.3 Mesa 19.0.8 direct render: Yes
These are higher level Xorg components that run on the underlying DDX.

Quote:
yes control brightness working as I said in my first post.
What question remains? Everything seems in order, does it not?
 
Old 03-17-2020, 04:09 PM   #15
Pierre032020
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no, I have problem with nv driver as I don't see the totality of page in second screen. Other example, with a movies in tv (second screen) movie is jerky.
It's reason, I install nvidia driver. But with nvidia driver I don't have control luminosity and luminosity is max.
I think that the response is in these links :
https://bugs.launchpad.net/ubuntu/+s...tup/+bug/95444
and particulary this comment :
https://bugs.launchpad.net/ubuntu/+s...44/comments/75

But I don't understand everything and I don't know what to do.

Thank you
 
  


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