[mythtv-users] Amdgpu disable power management?

[glen]

On Fri, 2017-08-25 at 21:56 +0200, Hika van den Hoven wrote:
> Hoi Hika,
> 
> Friday, August 25, 2017, 8:22:57 PM, you wrote:
> 
> > Hoi Daniel,
> > Friday, August 25, 2017, 4:42:53 PM, you wrote:
> 
> 
> 
> 
> > > On Thu, Aug 24, 2017 at 7:15 PM Hika van den Hoven <hikavdh at gmail
> > > .com> wrote:
> > > Hoi Daniel,
> > >  
> > >  Friday, August 25, 2017, 12:57:13 AM, you wrote:
> > >  
> 
>  >>> Anyone know how to disable power management on the amdgpu
> driver?
>  >>> Whenever I turn off the TV it disconnects and I'm left with a
> black
>  >>> screen when I try to turn it back on. Sometimes I have to unplug
> the
>  >>> HDMI cable before restarting lighten.
>  >>> This is on xubuntu 16.04.
>  >>> I tried putting a minimal xorg config to disable hot plugging,
> but it had no effect.
> > >  
> > >  I don't think it's a powermanagement thing, but a HDMI thing.
> > > There
> > >  have been maybe a year ago several threads about this.
> > >  I use in my boot manager:
> > >  
> > >  modeset=1 video=DVI-I-1:e
> > >  
> > >  to force the hdmi port to be enabled, independent of any
> > > connected
> > >  monitor. Which one will be your hdmi is dependent on your card.
> > >  
> > >  Tot mails,
> > >    Hika                            mailto:hikavdh at gmail.com
> > >  
> 
> 
> > > Thanks Hika,
> 
> 
> > > Can you give a little more info on how to best detect these
> > > items? 
> > > Also, Can I just add this to /etc/default/grub?  Or do I need to
> > > edit it on boot?
> 
> 
> > > Thanks,
> > > Dan 
> > I don't work with grub, but with lilo. These are boot parameters
> > you
> > apend to your kernel. modeset=1 enables the kernel managing the
> > console videomodes. The second part enables that port (d disables
> > it).
> > You can also set te console resolution (for instance:
> > "video=DVI-I-1:1024x768-32 at 60"), but that does not seem to work
> > with
> > the plug-in nvidia module.
> > So you have to check grub documentation where to add boot
> > parameters.
> > The port names you can find in your bootlog or dmesg.
> 
> See about Kernel Mode Setting or KMS:
> https://wiki.archlinux.org/index.php/kernel_mode_setting
> 
> 
> Tot mails,
>   Hika                            mailto:hikavdh at gmail.com
> 
> "Zonder hoop kun je niet leven
> Zonder leven is er geen hoop
> Het eeuwige dilemma
> Zeker als je hoop moet vernietigen om te kunnen overleven!"
> 
> De lerende Mens
> 
> _______________________________________________
> mythtv-users mailing list
> mythtv-users at mythtv.org
> http://lists.mythtv.org/mailman/listinfo/mythtv-users
> http://wiki.mythtv.org/Mailing_List_etiquette
> MythTV Forums: https://forum.mythtv.org

i think you can just set it as a parameter for the amdgpu module.
'modinfo amdgpu' shows a dpm parameter (1 on 0 off -1 auto) on this
module which is present in a laptop i have, so maybe try setting it in
your modprobe.d as a parameter setting or as a kernel option
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mythtv.org/pipermail/mythtv-users/attachments/20170825/be646ab1/attachment.html>