gdm fails to start with external monitor

distributer · #1 7th August 2012, 06:15 PM

If I have my external monitor attached to DVI I can just see the background image on the laptop and the external monitor stays black, no gdm login or anything. Without the external monitor everything is normal and I can login, then connect the external monitor and it remembers my setting to extend the desktop.

Code:

Linux disi-bigtop 3.5.0-2.fc17.x86_64 #1 SMP Mon Jul 30 14:48:59 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

This is with the radeon driver and the default configs in /etc/X11/xorg.conf.d/, which has just 00-system-setup-keyboard.conf.

Attached is the Xorg.o.log with external monitor connected to DVI, looks normal to me...

Any other information you need, let me know

Code:

00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.2 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 3 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1d.0 USB Controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM65 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
01:00.0 VGA compatible controller: ATI Technologies Inc Blackcomb [AMD Radeon HD 6900M Series]
01:00.1 Audio device: ATI Technologies Inc Barts HDMI Audio [Radeon HD 6800 Series]
02:00.0 USB Controller: NEC Corporation uPD720200 USB 3.0 Host Controller (rev 03)
03:00.0 Ethernet controller: JMicron Technology Corp. JMC250 PCI Express Gigabit Ethernet Controller (rev 05)
03:00.1 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 90)
03:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 90)
03:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 90)
04:00.0 Network controller: Intel Corporation Centrino Advanced-N 6230 (rev 34)
05:00.0 FireWire (IEEE 1394): JMicron Technology Corp. IEEE 1394 Host Controller (rev 30)

DaaviiApps · #2 7th August 2012, 07:54 PM

Are you using both monitors at once? Usually GDM should work if only one monitor is active when the system is booted. Otherwise perhaps try changing

Code:

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

to

Code:

Section "Monitor"
	Identifier   "Monitor X"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

where "X" is the ID of your second monitor, and delete all other "Monitor" sections maybe.

distributer · #3 7th August 2012, 08:22 PM

Quote:

Originally Posted by DaaviiApps

Are you using both monitors at once? Usually GDM should work if only one monitor is active when the system is booted. Otherwise perhaps try changing

Code:

Section "Monitor"
	Identifier   "Monitor0"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

to

Code:

Section "Monitor"
	Identifier   "Monitor X"
	VendorName   "Monitor Vendor"
	ModelName    "Monitor Model"
EndSection

where "X" is the ID of your second monitor, and delete all other "Monitor" sections maybe.

I have no monitor sections and no other configuration in /etc/X11/xorg.conf.d/ as stated above. I think per default the screens should be mirrored on login and gdm therefore on both screens, but I just see the background on one of them (LVDS) and nothing on the other.
Yes, it works if I disconnect the external monitor, which I use as a workaround to connect it after login.

MauserM98 · #4 7th August 2012, 08:48 PM

I pasted inn everything in my xorg.conf.
If there is something of interest pick that.
Discard the rest.

I use 2 monitors with 2 video cards.
I use KDM and it works well.

------------------------------------------------------------------
# nvidia-settings: X configuration file generated by nvidia-settings
# nvidia-settings: version 295.53 (mockbuild@builder1.ovh.rpmfusion.lan) Tue May 22 21:10:13 CEST 2012

# nvidia-xconfig: X configuration file generated by nvidia-xconfig
# nvidia-xconfig: version 295.53 (mockbuild@builder1.ovh.rpmfusion.lan) Tue May 22 21:15:15 CEST 2012
# RPM Fusion - nvidia-xorg.conf
#

Section "ServerLayout"

# Removed Option "Xinerama" "0"
Identifier "Default Layout"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" 1920 0
InputDevice "Keyboard0" "CoreKeyboard"
InputDevice "Mouse0" "CorePointer"
Option "Xinerama" "1"
EndSection

Section "InputDevice"

# generated from data in "/etc/sysconfig/keyboard"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbLayout" "no"
Option "XkbModel" "pc105"
EndSection

Section "InputDevice"

# generated from default
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/input/mice"
Option "Emulate3Buttons" "no"
Option "ZAxisMapping" "4 5"
EndSection

Section "Monitor"
Identifier "Monitor0"
VendorName "Unknown"
ModelName "Acer GD245HQ"
HorizSync 30.0 - 140.0
VertRefresh 56.0 - 120.0
EndSection

Section "Monitor"
Identifier "Monitor1"
VendorName "Unknown"
ModelName "ViewSonic VX912"
HorizSync 30.0 - 82.0
VertRefresh 50.0 - 85.0
EndSection

Section "Device"
Identifier "Videocard0"
Driver "nvidia"
EndSection

Section "Device"
Identifier "Device0"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 9500 GT"
BusID "PCI:1:0:0"
EndSection

Section "Device"
Identifier "Device1"
Driver "nvidia"
VendorName "NVIDIA Corporation"
BoardName "GeForce 7300 GT"
BusID "PCI:2:0:0"
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Videocard0"
Monitor "Monitor0"
EndSection

Section "Screen"

# Removed Option "metamodes" "1920x1080_120 +0+0; nvidia-auto-select +0+0"
# Removed Option "metamodes" "DFP-0: nvidia-auto-select +0+0"
# Removed Option "metamodes" "nvidia-auto-select +0+0"
# Removed Option "metamodes" "1920x1080_120 +0+0; nvidia-auto-select +0+0"
Identifier "Screen0"
Device "Device0"
Monitor "Monitor0"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "1920x1080_120 +0+0; 1920x1080_60 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "Screen"

# Removed Option "metamodes" "DFP-1: 1920x1080_60 +0+0"
# Removed Option "metamodes" "nvidia-auto-select +0+0"
Identifier "Screen1"
Device "Device1"
Monitor "Monitor1"
DefaultDepth 24
Option "TwinView" "0"
Option "metamodes" "1280x1024_75 +0+0"
SubSection "Display"
Depth 24
EndSubSection
EndSection

Section "Extensions"
Option "Composite" "Disable"
EndSection

distributer · #5 7th August 2012, 09:23 PM

Thanks for the config, looks like nvidia. To be honest, I want RandR to work properly with the open radeon driver and gdm to start.
With vmlinuz-3.3.4-5.fc17.x86_64 I have the exact same behaviour, but it worked when I first installed Fedora ~2 days ago. Must have come with an update and it doesn't appear to be the kernel driver in 3.5?

Here is another scenario:
boot with the external monitor connected
just the background image and mouse pointer, where gdm should be
disconnect it and restart Xorg (ctrl+alt+bksp)
gdm comes up and I can login
wait for Gnome to start
connect the external monitor and I get a kernel oops (tested twice)

p.s. its not a big deal, since I have a workaround, I just thought I would ask if this is a known problem...

MauserM98 · #6 7th August 2012, 10:05 PM

Kernel "oooops" is something you probably will not see if you change to kde. Gnome 3 was a nightmare with dual monitors for me. I gave it up. No big deal since I hated it.

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