Re: How do I suppress dpms mode setting messages on text console?
On Sun, Mar 4, 2012 at 8:39 PM, Scott Ferguson
<scott.ferguson.debian.user@gmail.com> wrote:
> On 05/03/12 05:08, Tom H wrote:
>> On Sun, Mar 4, 2012 at 12:16 PM, Stephen Powell <zlinuxman@wowway.com> wrote:
>>>
>>> I am using Debian wheezy i386 with an Nvidia video card and the default
>>> nouveau driver. �Everytime I switch back and forth between the X console
>>> (tty7) and a text console (such as tty1), tty1 gets spammed with messages
>>> like this:
>>>
>>> [drm] nouveau 0000:01:00.0: Setting dpms mode 3 on vga encoder (output 0)
>>> [drm] nouveau 0000:01:00.0: Setting dpms mode 0 on vga encoder (output 0)
>>> [drm] nouveau 0000:01:00.0: Output VGA-1 is running on CRTC 0 using output A
>>>
>>> I assume that mode 3 is graphics mode (X server) and mode 0 is text mode
>>> (frame buffer simulated text console).
>>>
>>> Similar messages occur if I stay in a text console long enough for the
>>> power management feature to turn off the display and then I re-activate the
>>> display again (such as by pressing the Shift key by itself). �Apparently,
>>> when power management kicks in, I get dmps mode 1; and when I re-activate
>>> the console it switches back to dpms mode 0. �I do not get these results
>>> on another computer which uses the Nvidia proprietary driver (nvidia),
>>> nor did I get such results using this computer back when I used
>>> the older free nvidia driver (nv), which has since been dropped from the
>>> distribution.
>>>
>>> I consider these messages to be noise messages and I wish to suppress them.
>>> I don't mind if they are written to the kernel log, but I don't ever want to
>>> see them written to the console itself (except maybe during boot).
>>>
>>> I tried searching the internet, but I didn't find anything useful. �Is there
>>> a way to suppress these messages without suppressing true error messages?
>>> Maybe there's a module option that I can set in /etc/modprobe.d/local.conf,
>>> or something along those lines? �Any help will be appreciated.
>>
>> Isn't this a "/proc/sys/kernel/printk" issue?
>>
>> You can set "kernel.printk = 3 4 1 3" in "/etc/sysctl.conf".
>
> Yes - *that* should work (I haven't tested as I don't run the open
> driver - but I've used it to suppress other annoying messages)
>
> Won't apply until reboot though. For immediate effect:-
> echo "3 4 1 3" > /proc/sys/kernel/printk
Or with "sysctl -p".
Reply to: