Re: since kernel commit cb0953d734: X chooses wrong resolution at startup

From: Florian Mickler <florian@mickler.org>
To: Adam Jackson <ajax@redhat.com>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: since kernel commit cb0953d734: X chooses wrong resolution at startup
Date: Wed, 18 May 2011 18:15:23 +0200	[thread overview]
Message-ID: <20110518181523.6d161b54@schatten.dmk.lab> (raw)
In-Reply-To: <4DD3E30A.80808@redhat.com>

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On Wed, 18 May 2011 11:17:30 -0400
Adam Jackson <ajax@redhat.com> wrote:

> On 5/18/11 9:41 AM, Florian Mickler wrote:
> > Since
> >
> > commit cb0953d734348e8862d6d7edc666cfb3bf6d8fae
> > Author: Adam Jackson<ajax@redhat.com>
> > Date:   Fri Jul 16 14:46:29 2010 -0400
> >
> >      drm/i915: Initialize LVDS and eDP outputs before anything else
> >
> > my xserver chooses a wrong resolution for my VGA output at startup.
> >
> > The kernel continues to correctly start up fbcon in cloning mode with
> > vga1@1680x1050 and lvds1@1400x1050 but Xorg then chooses 1280x1024 for
> > my vga screen and I have to manually set the right mode via xrandr.
> >
> > Why? It looks like everything gets correctly detected..
> 
> Well, the log says:
> 
> > [  6947.293] (II) intel(0): Using user preference for initial modes
> > [  6947.293] (II) intel(0): Output LVDS1 using initial mode 1400x1050
> > [  6947.293] (II) intel(0): Output VGA1 using initial mode 1280x1024
> 
> which implies that it thinks you've asked for 12x10 in xorg.conf.  Have you?
> 
> It's entirely possible that you haven't and that this is simply a bug in 
> X's setup heuristic, but let's check the obvious things first.
> 
> - ajax

yep, shure. Attached my xorg.conf. It's a bit messy, but it should boil
down to just having vga-1 right of lvds-1. 

regards,
Flo

[-- Attachment #2: xorg.conf --]
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Section "Module"
    Load        "dbe"  	# Double buffer extension
    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection
    Load        "freetype"
    Load       "glx"
    Load       "dri2"
EndSection
Section "Files"
    FontPath   "/usr/share/fonts/misc/"
    FontPath   "/usr/share/fonts/100dpi/"
    FontPath   "/usr/share/fonts/75dpi/"
EndSection
Section "ServerFlags"
	Option "DefaultServerLayout" "Simple Layout"
EndSection
#Section "InputDevice"
#   Identifier	"Keyboard1"
#    Driver "kbd0"
    #Driver	"evdev"
#  Option "AutoRepeat" "500 30"
#    Option "XkbRules"	"xorg"
#    Option "XkbModel"	"pc105"
#    Option "XkbOptions"	"grp:shifts_toggle,grp_led:scroll,eurosign:e"
#EndSection

#Section "InputDevice"
#	Identifier "Synaptics Touchpad"
#	Driver "synaptics"
#	Option "SendCoreEvents"
#	Option "Device"
#	Option "Protocol"
#	Option "HorizScrollDelta"
#	Option "SHMConfig"
#EndSection

#Section "InputDevice"
#    Identifier	"Mouse1"
#    Driver	"mouse0"
#    Driver "evdev"
 #   Option "Protocol"    "Auto"	# Auto detect
 #   Option "Device"      "/dev/input/mice"
 #   Option "ZAxisMapping"   "4 5 6 7"
#EndSection
Section "Monitor"
    Identifier "ASUS"
   Option "LeftOf" "LVDS"
EndSection

Section "Monitor"
    Identifier  "LVDS"
 Option "RightOf" "VGA"   
EndSection

Section "Monitor"
    Identifier  "LVDS1"
 Option "RightOf" "VGA1"    
EndSection

Section "Monitor"
    Identifier "none"
    Option "Ignore" "true"
EndSection

Section "Device"
    Identifier "intel0"
    Driver     "intel"
   #Option "monitor-VGA" "ASUS"
    Option "monitor-LVDS" "LVDS"
    Option "monitor-LVDS1" "LVDS1"
    Option "monitor-VGA1" "VGA1"
    Option "monitor-VGA" "VGA"
    Option "DRI2"
    Option      "Tiling" "on"
    Option "AccelMethod" "UXA"
EndSection
Section "Device"
    Identifier "intel1"
    Driver     "intel"
   #Option "monitor-VGA" "ASUS"
    Option "monitor-LVDS" "LVDS"
    Option "monitor-LVDS1" "LVDS1"
    Option "monitor-VGA1" "VGA1"
    Option "monitor-VGA" "VGA"
    Option "FramebufferCompression" "off"
    Option "DRI2"
    Option      "Tiling" "on"
    Option "AccelMethod" "UXA"
EndSection

Section "Screen"
    Identifier  "Screen 0"
    Device      "intel0"
    DefaultDepth 24
    Subsection "Display"
	Depth       24
	Virtual 3080 1050
    EndSubSection
EndSection
Section "Screen"
    Identifier  "Screen 1"
    Device      "intel1"
    DefaultDepth 24
    Subsection "Display"
	Depth       24
	Virtual 3080 1050
    EndSubSection
EndSection
Section "ServerLayout"
    Identifier  "Simple Layout"
    Screen 0 "Screen 0"
##    InputDevice "Mouse1" "CorePointer"
##    InputDevice "Synaptics Touchpad" "CorePointer"
##    InputDevice "Keyboard1" "CoreKeyboard"
EndSection

Section "ServerLayout"
    Identifier "Zaphod"
    Screen 0 "Screen 0"
    Screen 1 "Screen 1" 

EndSection

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