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External Monitor Problem
External Monitor Problem
Hi there:
My problem is, that I have installed Debian 5.0 on my old Dell Inspiron 4000 laptop. No problem during install, it has finished installing 100% and boots just fine, I am writing this from it.
Unfortunately my laptop's screen's backlight broke a few years back, and I've been using an external LG Flatron L17 nt monitor since then as one can hardly see a thing off the original screen, it is almost pitch black.
During boot, and GRUB, and some of the text after that, all will display normally on the CRT. Before it reaches the login screen, however, the monitor will go into standby mode and be black, as if it was not receiving any signal. It will stay black for as long as the OS is running, and then, when I shut down, it will wake to life again when the text-based messages during shut down show up. But during the most crucial time, when it would be most needed, the monitor is dead.
Thanks,
My problem is, that I have installed Debian 5.0 on my old Dell Inspiron 4000 laptop. No problem during install, it has finished installing 100% and boots just fine, I am writing this from it.
Unfortunately my laptop's screen's backlight broke a few years back, and I've been using an external LG Flatron L17 nt monitor since then as one can hardly see a thing off the original screen, it is almost pitch black.
During boot, and GRUB, and some of the text after that, all will display normally on the CRT. Before it reaches the login screen, however, the monitor will go into standby mode and be black, as if it was not receiving any signal. It will stay black for as long as the OS is running, and then, when I shut down, it will wake to life again when the text-based messages during shut down show up. But during the most crucial time, when it would be most needed, the monitor is dead.
Thanks,
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
Does the external monitor work in CLI, (text-only), mode?
To test, either choose recovery mode at the grub menu, or try switching to another console by pressing, (for example), <ctrl><alt><f3>
I suspect your monitor isn't synched correctly with X. If so, some tweaking of /etc/X11/xorg.conf will be required.
To test, either choose recovery mode at the grub menu, or try switching to another console by pressing, (for example), <ctrl><alt><f3>
I suspect your monitor isn't synched correctly with X. If so, some tweaking of /etc/X11/xorg.conf will be required.
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Re: External Monitor Problem
Hi:
Thank you for your message.
Yes, the Monitor works in recovery mode. I see everything as in a Terminal.
Thank you for your message.
Yes, the Monitor works in recovery mode. I see everything as in a Terminal.
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
Please provide hardware details w/respect to graphics card, monitor specs etc.
Also post output of
Also post output of
Code: Select all
cat /etc/X11/xorg.conf
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Re: External Monitor Problem
Hello:
This is the information related to: cat /etc/X11/xorg.conf
Section "InputDevice"
Identifier "Generic Keyboar"
Driver "kdb"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection
Section "InputDevice"
Identifier "Configured Video Device"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
On my BIOS, I could find the following information:
Dell Inspiron 4000 Setup
Celeron-800MHz
Level 2 Cache: 128 KB
System Memory: 320 MB
Video Controller: ATI M3
Audio Controller: ESS Maestro 3
Primary Hard Drive: 10056 MB
Modular Bay: DVD-ROM
I google my monitor and find this:
Monitor:
LG FLATRON L17NT-A
Power: AC 100-200v 50/60Hz 1.0A
Type: Flat Panel LCD (Passive Matrix)
Screen size 17 inch
(When the screen goes to black, it says "Analog Power Saving Mode")
Thanks,
This is the information related to: cat /etc/X11/xorg.conf
Section "InputDevice"
Identifier "Generic Keyboar"
Driver "kdb"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection
Section "InputDevice"
Identifier "Configured Video Device"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
On my BIOS, I could find the following information:
Dell Inspiron 4000 Setup
Celeron-800MHz
Level 2 Cache: 128 KB
System Memory: 320 MB
Video Controller: ATI M3
Audio Controller: ESS Maestro 3
Primary Hard Drive: 10056 MB
Modular Bay: DVD-ROM
I google my monitor and find this:
Monitor:
LG FLATRON L17NT-A
Power: AC 100-200v 50/60Hz 1.0A
Type: Flat Panel LCD (Passive Matrix)
Screen size 17 inch
(When the screen goes to black, it says "Analog Power Saving Mode")
Thanks,
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
This may/may not work..
Make a backup of your original /etc/X11/xorg.conf first: As root, do something like --
Then edit, with nano or your preferred terminal editor /etc/X11/xorg.conf, making changes as shown:
A Section "ServerLayout" may also be required... I haven't encountered your problem before...
If you're unfamiliar with nano -- just type
navigate using arrow keys
enter/edit text as you would expect..
You'll see common commands at bottom of screen
Save file: <ctrl><o><enter>
Exit nano: <ctrl><x>
fyi, full specs for your monitor were located via teh Google god:
Make a backup of your original /etc/X11/xorg.conf first: As root, do something like --
Code: Select all
cp /etc/X11/xorg.conf /etc/X11/xorg_conf.backup
Code: Select all
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kdb"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection
#Section "InputDevice"
# Identifier "Configured Video Device"
#EndSection
Section "Device"
Identifier "ATI M3"
Driver "vesa"
Option "Monitor-VGA-0" "VGA monitor"
EndSection
Section "Monitor"
Identifier "VGA monitor"
VendorName "LG"
ModelName "FLATRON L17NT-A"
HorizSync 30.0 - 83.0
VertRefresh 56.0 - 75.0
Option "DPMS"
#Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Device "ATI M3"
Monitor "VGA monitor"
#Monitor "Configured Monitor"
DefaultDepth 24
Subsection "Display"
Depth 24
Modes "1280x1024"
EndSubSection
EndSection
If you're unfamiliar with nano -- just type
Code: Select all
nano /etc/X11/xorg.conf
enter/edit text as you would expect..
You'll see common commands at bottom of screen
Save file: <ctrl><o><enter>
Exit nano: <ctrl><x>
fyi, full specs for your monitor were located via teh Google god:
Code: Select all
Flat Panel LCD TFT (Active Matrix), Brightness: 250 cd/m??, Contrast Ratio: 800:1, Aspect Ratio: 5:4, Dot Pitch: 0.264 mm, 24-bit ...
Specifications
Key Features
Aspect Ratio
5:4 (Regular)
Size
17"
Color Depth
24-bit (16.7M colors)
Contrast Ratio
500:1
Brightness
250 cd/m
Max. Resolution
1280 x 1024
Dot Pitch
.264 mm
Monitor Type
Flat Panel LCD TFT (Active Matrix)
Response Time
12 ms
Viewable Picture Size
17 in.
Technical Features
Form Factor
Desktop
Regulatory Approval
CE · UL · cUL · FCC Class B · C-Tick · VCCI · TUV-GS · ISO 13406-2 (Pixel defect guidelines) · Energy star · TCO-03 · GOST-R
Synchronization Range - Horizontal
30 - 83 kHz
Max. Viewing Angle - Horizontal
160
Max. Viewing Angle - Vertical
160
Native (Recommended) Resolution
1280 x 1024
Resolutions supported
1280 x 1024 · 800 x 600 · 640 x 480 · 1024 x 768 · 832 x 624 · 1152 x 870 · 720 x 400 · 640 x 350 · 1152 x 900
Synchronization Range - Vertical
56 - 75 Hz
Dimensions
Depth
9.07 in.
Height
15.31 in.
Width
14.49 in.
Weight
10.8 lb.
Tips & Tricks
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
yes it does!llivv wrote: CTRL+ALT+BACKSPACE to shut down the test session ( still works in Lenny) most of the time,
It gets more complicated to kill the session in testing.
The <ctrl><alt><bksp> command may be restored in Squeeze/Sid etc by running
Code: Select all
dpkg-reconfigure console-setup
Tips & Tricks
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If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Re: External Monitor Problem
Hello there:
I have tried every suggestion, but unfortunately nothing work well.
I tried to use
But the result was: console-setup is not installed
I wonder if it is possible to find this package in the CD image in order to install it.
Right now I don't have access to the Internet.
Thanks,
I have tried every suggestion, but unfortunately nothing work well.
I tried to use
Code: Select all
dkpg-reconfigure console-setup
I wonder if it is possible to find this package in the CD image in order to install it.
Right now I don't have access to the Internet.
Thanks,
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
console-setup isn't strictly necessary. It's just convenient because, at least for Squeeze/Sid, it allows for the <ctrl><alt><bksp> key combo to quickly restart X, and has nothing directly to do with the current problem.
You may also force restart x from a terminal, or the cli
Example:
*replace gdm with kdm or xdm depending on your desktop manager
Try editing the /etc/X11/xorg.conf as suggested, either manually or as suggested by llivv
You may also force restart x from a terminal, or the cli
Example:
Code: Select all
/etc/init.d/gdm restart
*replace gdm with kdm or xdm depending on your desktop manager
Try editing the /etc/X11/xorg.conf as suggested, either manually or as suggested by llivv
Tips & Tricks
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Re: External Monitor Problem
Hi:
Well:
I also follow llivv's suggestion, but nothing happen.
Well:
I tried to edit manually xorg.conf... but the Xserver crashed when I restart the system.Try editing the /etc/X11/xorg.conf as suggested, either manually or as suggested by llivv
I also follow llivv's suggestion, but nothing happen.
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
Do you mean the system now doesn't even launch in text-only mode?
If you cannot get to the CLI, check out llivv's instructions. It also may mean something other than the xserver is playing up..
In the meantime, I'll try to come up with another possible solution to the X-server problem.
If you can get to the CLI, you may wish to restore the original xorg.conf file, so at least you're back to where you were.
You may want to make a backup of the modified one first, however, as reference.
Example: To restore the original file:
I'm not familiar with your particular lappy, but perhaps there's a switch or key-combo for an external monitor.
For example, on my asus laptop there's a <fn><f8> key combo to toggle an external monitor
If you cannot get to the CLI, check out llivv's instructions. It also may mean something other than the xserver is playing up..
In the meantime, I'll try to come up with another possible solution to the X-server problem.
If you can get to the CLI, you may wish to restore the original xorg.conf file, so at least you're back to where you were.
You may want to make a backup of the modified one first, however, as reference.
Example:
Code: Select all
cp /etc/X11/xorg.conf /etc/X11/xorg_modified
Code: Select all
mv /etc/X11/xorg_conf.backup /etc/X11/xorg.conf
For example, on my asus laptop there's a <fn><f8> key combo to toggle an external monitor
Tips & Tricks
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Re: External Monitor Problem
Hello:
1. I have access to CLI mode.
2. This computer also has a key combo to toggle an external monitor, in my case is fn + F5... but it doesn't work when I trying to access the gnome desktop. This key works perfectly in CLI and just before start the graphic environment. The problem with my laptop's screen is that after 5 minutes or so, the screen goes black always, but I made an experiment and I know that the external monitor goes in sleeping mode always when the X server starts to work... I mean when it is possible to see the X as a mouse's pointer, just before the login to gnome.
3. When I modified manually the xorg.conf and restart the laptop... the system shown a frame saying... fatal error... or something like that. The specific problem was related to this section:
Thanks for your time...
1. I have access to CLI mode.
2. This computer also has a key combo to toggle an external monitor, in my case is fn + F5... but it doesn't work when I trying to access the gnome desktop. This key works perfectly in CLI and just before start the graphic environment. The problem with my laptop's screen is that after 5 minutes or so, the screen goes black always, but I made an experiment and I know that the external monitor goes in sleeping mode always when the X server starts to work... I mean when it is possible to see the X as a mouse's pointer, just before the login to gnome.
3. When I modified manually the xorg.conf and restart the laptop... the system shown a frame saying... fatal error... or something like that. The specific problem was related to this section:
4. Right now... this is my xorg.confSection "Device"
Identifier "ATI M3"
Driver "vesa"
Option "Monitor-VGA-0" "VGA monitor"
EndSection
So my question is: if I have an external monitor... why is listed just one. I think that this is the problem.# xorg.conf (X.Org X Window System server configuration file)
#
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
#
# Edit this file with caution, and see the xorg.conf manual page.
# (Type "man xorg.conf" at the shell prompt.)
#
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
#
# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc104"
Option "XkbLayout" "us"
EndSection
Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
EndSection
Section "Device"
Identifier "Configured Video Device"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
EndSection
Thanks for your time...
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
See if this works:
Code: Select all
xrandr --output VGA --auto
Tips & Tricks
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If you obviously have not read THIS, don't expect too much...
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Re: External Monitor Problem
After run this in CLI:
The system says:
Code: Select all
xrandr --output VGA --auto
Can't open display
- bluesdog
- Posts: 2077
- Joined: 2006-02-01 09:02
- Location: Similkameen, British Columbia, Canada
- Been thanked: 1 time
Re: External Monitor Problem
Perhaps there's some info at these links: http://maketecheasier.com/how-to-setup- ... 2009/06/01
http://maketecheasier.com/output-displa ... 2007/11/22
http://maketecheasier.com/output-displa ... 2007/11/22
Tips & Tricks
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
*winter bluesdog....*
Something more to read while waiting
If you obviously have not read THIS, don't expect too much...
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