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#1 2012-10-21 06:45:31

archel
Member
Registered: 2011-11-04
Posts: 46

[Samsung RV520]NVIDIA driver 304.60 Brightness problem

Since I updated the nvidia driver I can't control my brightness.
My laptop is a Samsung RV520 with a Geforce 520M.
The xorg config is the same .

Anyone has the same problem?

EDIT:

Even after I resume from a suspend.

Last edited by archel (2012-10-22 11:47:40)

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#2 2012-10-21 07:34:39

archel
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Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I forced the acpi_osi=Linux and acpi_backlight=vendor in the grub2 config and I still have the problem BUT now I can use properly the command "echo 8 > /sys/class/backlight/samsung/brightness" to restore the brightness.

I remember that I couldnìt do it in the previous version, great smile

Now I need a way to automatically restore the brightness from the suspend/standby.

I'm using samsung-tools-bzr to control the FN-keys but I can't use fn+up and fn+down for the brightness.

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#3 2012-10-21 08:20:33

archel
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Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

So I did this(well, I just recheked everything):

1.Checked the Xorg file for brightness control (NVIDIA WIKI)
2. Enabled the acpi_backlight=vendor
3. While looking for clues I noticed that I forgot to add to my .xinitrc "xbindkeys" in order to get samsung-tools config load when X starts.

And after I've done step 3, brightness works fine after suspend/standby.

Wonder why it worked fine with the previous driver..maybe because in this realease there is a fix on brightness control for some laptop (like mine I noticed big_smile )

Well, I think this is SOLVED smile

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#4 2012-10-21 08:51:13

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I don't see how this can be considered a proper solution hmm

I had the same problem with Sony Vaio VPCEH2L1R. After my eyes began to ache because of 100% display brightness, I downgraded xorg-server to 1.12.4 and nvidia to 304.51 and now everything works - without suspicious kernel hacks and weird .xinitrs options. What's with that 'xbindkeys' anyway? Could you please explain?

PS: though I'm a dedicated archlinux user, I've always disliked this thing about rolling release model: shit just breaks without end. Kind of discouraging, considering my mother's been using Samsung laptop with OpenSUSE without any problems.

Last edited by ajaxas (2012-10-21 08:52:50)

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#5 2012-10-21 08:58:20

archel
Member
Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I know this is not a proper solution, that's why I wrote "Well, I think this is SOLVED"

The xbindkeys is used by samsung-tools (bzr version for me from AUR) for the fn-keys (which includes fn+up/down for brightness.. so "something is related").

But really before upgrading the nvidia drivers, everything worked fine.

Now that you mentioned xorg-server.. there was an updated two(?) days ago. So maybe is also xorg fault. smile

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#6 2012-10-21 13:25:15

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I see. My Sony Vaio Fn keys work without xbindkeys, except for touchpad on/off key.

Okay, I'll try to find out whether it's nvidia or xorg-server thing.

EDIT: yes, it's nvidia all right. Dunno if I should file a bug report or whatever... sad

Last edited by ajaxas (2012-10-21 14:01:02)

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#7 2012-10-21 15:12:14

archel
Member
Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Don't know either big_smile I kinda solved my problem.

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#8 2012-10-21 15:12:58

Šaran
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From: Bosnia
Registered: 2011-09-03
Posts: 407

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

It's a bug, so file report.

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#9 2012-10-21 17:36:46

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I don't think it's an archlinux related bug. Nvidia driver is a proprietary blob, and I don't want to write *there*.

I could relate to the package maintainer, of course.

Or I could've bought a laptop without Nvidia graphics card -___- Intel HD3000 is more than enough, really. Bullocks.

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#10 2012-10-22 11:48:09

archel
Member
Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Ok, I have the same problem today... So there's something wrong in this driver version smile

Bug reported wink

Last edited by archel (2012-10-22 12:16:03)

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#11 2012-10-26 14:45:51

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

archel wrote:

Ok, I have the same problem today... So there's something wrong in this driver version smile

Bug reported wink

It's quiet over there. And old nvidia module doesn't work with linux-3.6.3 for me -_-
Was there a reply from our own Evil Inc.?

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#12 2012-10-26 16:52:02

zxz
Member
Registered: 2012-09-12
Posts: 4

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

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#13 2012-10-27 08:06:49

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

You don't say?

[ajaxas@r2d2 ~]$ cat /etc/X11/xorg.conf.d/10-display.conf 
Section "Monitor"
    Identifier    "Monitor0"
    Option        "DPMS" "1"
EndSection

Section "Device"
    Identifier    "Device0"
    Driver        "nvidia"
    Option        "NoLogo" "1"
    Option        "ConnectedMonitor" "DFP"
    #Option        "RegistryDwords" "EnableBrightnessControl=1"
    Option        "RegistryDwords" "EnableBrightnessControl=1; PowerMizerEnable=0x1; PowerMizerLevelAC=0x3; PowerMizerLevel=0x3"
    Option        "OnDemandVBlankInterrupts" "1"
EndSection

Section "Screen"
    Identifier    "Screen0"
    Device        "Device0"
    Monitor       "Monitor0"
    Option        "MetaModes" "1366x768_60 +0+0"
    DefaultDepth  24
    SubSection "Display"
        Depth     24
    EndSubSection
EndSection

The thing is: it works with 304.51, but doesn't work with 304.60. I consider such behavior wrong.

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#14 2012-10-27 09:42:15

zxz
Member
Registered: 2012-09-12
Posts: 4

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

That's strange. I have a Samsung RV511 laptop and brightness setting has never worked for me with the official nvidia driver.  Nvidiabl from AUR solved the problem.

Last edited by zxz (2012-10-27 09:44:55)

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#15 2012-10-27 12:35:47

ajaxas
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Registered: 2009-02-23
Posts: 65
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Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

zxz wrote:

That's strange. I have a Samsung RV511 laptop and brightness setting has never worked for me with the official nvidia driver.  Nvidiabl from AUR solved the problem.

Dunno. I've got Sony, and it just works.

On the other hand, that depends. It didn't work with XFCE (i.e. it worked and then it didn't work and worked again another day with no apparent reason - I consider this as "didn't work"), but worked with KDE without a single problem till now.

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#16 2012-11-06 21:33:44

archel
Member
Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Did anyone try the new nvidia driver 304.64?

http://www.geforce.com/drivers/results/51453

I can't test it on my system because I'm out of my town for a few days, but I think they fixed the brightness issue. big_smile

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#17 2012-11-08 14:05:50

ajaxas
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Registered: 2009-02-23
Posts: 65
Website

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

archel wrote:

Did anyone try the new nvidia driver 304.64?

http://www.geforce.com/drivers/results/51453

I can't test it on my system because I'm out of my town for a few days, but I think they fixed the brightness issue. big_smile

Same shit sad
Responds to 'echo X > /sys/class/backlight/acpi_vendor0/brightness', but KDE hotkeys and applets don't work.
Sorry to disappoint you.

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#18 2012-11-08 16:27:22

Selo
Member
Registered: 2012-02-08
Posts: 36

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Same here. 304.64 didn't fix the problem, broken since 304.51

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#19 2012-11-08 21:33:46

archel
Member
Registered: 2011-11-04
Posts: 46

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

ajaxas wrote:
archel wrote:

Did anyone try the new nvidia driver 304.64?

http://www.geforce.com/drivers/results/51453

I can't test it on my system because I'm out of my town for a few days, but I think they fixed the brightness issue. big_smile

Same shit sad
Responds to 'echo X > /sys/class/backlight/acpi_vendor0/brightness', but KDE hotkeys and applets don't work.
Sorry to disappoint you.

Oh gosh.. sad to hear that sad

I hope they fixed my notebook sad

Selo what's your pc spec?

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#20 2012-11-08 22:51:37

Selo
Member
Registered: 2012-02-08
Posts: 36

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

I am using Ideapad Y530

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#21 2012-11-10 15:17:26

ajaxas
Member
Registered: 2009-02-23
Posts: 65
Website

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

This whole situation makes me wonder: just how does udev handle brightness control? If not via /sys interface?

Or is it not udev at all? As (I think) I've mentioned earlier here, my laptop's brightness Fn combinations hadn't worked with XFCE, but they do work with KDE. So it is possible KDE handles Fn keys independently of udev.

And if so, could it be not a nvidia driver bug per se (since brightness can be adjusted via /sys), but an issue of KDE/nvidia interaction caused by some changes in nvidia?

Can anyone comment, please?

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#22 2012-11-10 15:43:37

Gusar
Member
Registered: 2009-08-25
Posts: 3,399

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

ajaxas wrote:

an issue of KDE/nvidia interaction caused by some changes in nvidia?

That would be my guess. The changes in nvidia are documented even - from the 304.60 changelog:

Added support for the "Backlight" RandR output property for configuring the brightness of some notebook internal panels.

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#23 2012-11-10 16:11:23

ajaxas
Member
Registered: 2009-02-23
Posts: 65
Website

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

@Gusar
Nvidia even claimed to have fixed something similar in 304.64:

Fixed a regression in backlight control functionality on some notebook configurations.

but not for me.

Btw, people all over the Internet are weeping as well, example: http://www.nvnews.net/vbulletin/showthr … ?p=2579087

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#24 2012-11-10 16:32:09

Gusar
Member
Registered: 2009-08-25
Posts: 3,399

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Yeah there was a genuine regression, but it's now fixed. You said it yourself that the problem is only in KDE. So the driver is now fine, it's KDE that got tripped up by the change in the 304.60 driver, and it's KDE that will need to adapt to it.

Last edited by Gusar (2012-11-10 16:32:48)

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#25 2012-11-10 17:16:15

ajaxas
Member
Registered: 2009-02-23
Posts: 65
Website

Re: [Samsung RV520]NVIDIA driver 304.60 Brightness problem

Gusar wrote:

Yeah there was a genuine regression, but it's now fixed. You said it yourself that the problem is only in KDE. So the driver is now fine, it's KDE that got tripped up by the change in the 304.60 driver, and it's KDE that will need to adapt to it.

This sounds sane.
Unfortunately, this doesn't make things easier at all.

EDIT:
Okay, I updated this bug: https://bugs.kde.org/show_bug.cgi?id=308757 and hope people in KDE will do something.
It's so sad to be totally unqualified.

Last edited by ajaxas (2012-11-10 17:40:35)

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