Re: Headsup: Xserver update switching Intel GPUs from xorg-x11-drv-intel to -modesetting by default coming to rawhide

[Dominik 'Rathann' Mierzejewski]

On Thursday, 12 January 2017 at 12:56, Reindl Harald wrote:
>  Am 12.01.2017 um 12:44 schrieb Dominik 'Rathann'
> Mierzejewski:
>  > > Yes, we're just changing the default, if you drop a 99-local.conf file in
>  > > /etc/X11/xorg.conf.d with the following contents:
>  > > 
>  > > Section "OutputClass"
>  > >     Identifier "intel"
>  > >     MatchDriver "i915"
>  > >     Driver "intel"
>  > > EndSection
>  > > 
>  > > Then you should get the intel driver used for any GPUs using the i915
>  > > kernel driver.
>  > 
>  > How does one do the opposite (i.e. switch to the modesetting driver) on,
>  > say, Fedora 25 running on Haswell? I'd like to test if that works around
>  > a particularly annoying system freeze bug
>  > (https://bugs.freedesktop.org/show_bug.cgi?id=98760)
>  
>  exactly the same way?
>  
>  [root@srv-rhsoft:~]$ cat /etc/X11/xorg.conf.d/02-intel.conf
>  # Section "Device"
>  #  Identifier  "Videocard0"
>  #  Driver      "intel"
>  #  Option      "AccelMethod"   "uxa"
>  #  Option      "TearFree"      "true"
>  #  Option      "DRI"           "3"
>  # EndSection
>  
>  Section "Device"
>   Identifier "Videocard0"
>   Driver     "modesetting"
>   Option     "AccelMethod" "glamor"
>  EndSection 
Right, thanks. Unfortunately that doesn't help for the above bug.

One other thing. After switching to the modesetting driver, the
xrandr output names change (e.g. from HDMI1 to HDMI-1), which should be
documented as the existing head configurations will not work out of the
box after driver switch.

Regards,
Dominik
-- 
Fedora http://fedoraproject.org/wiki/User:Rathann
RPMFusion http://rpmfusion.org
"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"

Headsup: Xserver update switching Intel GPUs from xorg-x11-drv-intel to -modesetting by default coming to rawhide

[Dominik 'Rathann' Mierzejewski]

On Thursday, 12 January 2017 at 13:38, Dominik Mierzejewski wrote:
>  On Thursday, 12 January 2017 at 12:56, Reindl Harald wrote:
>  > Am 12.01.2017 um 12:44 schrieb Dominik 'Rathann' Mierzejewski:
>  > > > Yes, we're just changing the default, if you drop a 99-local.conf file
> in
>  > > > /etc/X11/xorg.conf.d with the following contents:
>  > > > 
>  > > > Section "OutputClass"
>  > > >     Identifier "intel"
>  > > >     MatchDriver "i915"
>  > > >     Driver "intel"
>  > > > EndSection
>  > > > 
>  > > > Then you should get the intel driver used for any GPUs using the i915
>  > > > kernel driver.
>  > > 
>  > > How does one do the opposite (i.e. switch to the modesetting driver) on,
>  > > say, Fedora 25 running on Haswell? I'd like to test if that works around
>  > > a particularly annoying system freeze bug
>  > > (https://bugs.freedesktop.org/show_bug.cgi?id=98760)
>  > 
>  > exactly the same way?
>  > 
>  > [root@srv-rhsoft:~]$ cat /etc/X11/xorg.conf.d/02-intel.conf
>  > # Section "Device"
>  > #  Identifier  "Videocard0"
>  > #  Driver      "intel"
>  > #  Option      "AccelMethod"   "uxa"
>  > #  Option      "TearFree"      "true"
>  > #  Option      "DRI"           "3"
>  > # EndSection
>  > 
>  > Section "Device"
>  >  Identifier "Videocard0"
>  >  Driver     "modesetting"
>  >  Option     "AccelMethod" "glamor"
>  > EndSection
>  
>  Right, thanks. Unfortunately that doesn't help for the above bug.
>  
>  One other thing. After switching to the modesetting driver, the
>  xrandr output names change (e.g. from HDMI1 to HDMI-1), which should be
>  documented as the existing head configurations will not work out of the
>  box after driver switch. 
It does fix one obscure issue I was having with Citrix Receiver Linux
client. The mouse cursor in the remote session changed to a black
rectangle when hovering over certain application windows. This is no
longer happening with the modesetting driver. Yay...

Regards,
Dominik
-- 
Fedora http://fedoraproject.org/wiki/User:Rathann
RPMFusion http://rpmfusion.org
"Faith manages."
        -- Delenn to Lennier in Babylon 5:"Confessions and Lamentations"