View Full Version : [ubuntu] Question regarding Screen-Resolution, Xorg, and Jaunty
ubuntu27
April 16th, 2009, 07:29 PM
I tested Ubuntu Jaunty Beta 64-bit DesktopCD on one of my sibling's laptop.
The screen resolution that Jaunty has chosen is 800x600.
In Display Preferences, it says that it has an unknown screen.
Windows reports the video card as Nvidia GeForce 7150M/nForce 630M
The xorg.conf shows:
ubuntu@ubuntu:~$ cat /etc/X11/xorg.conf
# 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.
#
# Note that some configuration settings that could be done previously
# in this file, now are automatically configured by the server and settings
# here are ignored.
#
# 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 "Device"
Identifier "Configured Video Device"
EndSection
Section "Monitor"
Identifier "Configured Monitor"
EndSection
Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
EndSection
ubuntu@ubuntu:~$
1) My question is how do I fix the screen resolution?
The Screen Resolution should support 1280x800, 1280x720, 1024x768, 800x600.
The one in black is the prefered resollution for this laptop (what I judge from Windows OS)
2) Can I copy the xorg.conf of my current [working] laptop to the other laptop?
Sorry, I do not have any experience in fixing screen resolution, Ubuntu has always detected it correctly until now.
Thank you guys.
Daisuke_Aramaki
April 16th, 2009, 07:31 PM
I tested Ubuntu Jaunty Beta 64-bit DesktopCD on one of my sibling's laptop.
The screen resolution that Jaunty has chosen is 800x600.
In Display Preferences, it says that it has an unknown screen.
Most important, what graphic card does the system have?
ubuntu27
April 16th, 2009, 07:41 PM
Most important, what graphic card does the system have?
Oh, Sorry. I should have added that in the first post.
Windows report it as:
Nvidia GeForce 7150M/nForce 630M
Daisuke_Aramaki
April 16th, 2009, 07:48 PM
Oh, Sorry. I should have added that in the first post.
Windows report it as:
Nvidia GeForce 7150M/nForce 630M
You can also find all device details in linux as well.
lspci -v
it will report the vendor, and every detail of the hardware components.
Anyway you need to install the nvidia driver first, to get the right resolution. Under System->Administration or Preferences I am not sure, there will be an option called Hardware Drivers or something like that Enable the use restricted drivers option and choose the nvidia driver it presents, then install the same. If it doesn't let me know, since installing nvidia driver manually is not that big a deal too.
ubuntu27
April 16th, 2009, 08:11 PM
You can also find all device details in linux as well.
lspci -v
Here is the output:
ubuntu@ubuntu:~$ lspci -v
00:00.0 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: <access denied>
00:01.0 ISA bridge: nVidia Corporation MCP67 ISA Bridge (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0
00:01.1 SMBus: nVidia Corporation MCP67 SMBus (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: 66MHz, fast devsel, IRQ 10
I/O ports at 3080 [size=64]
I/O ports at 3040 [size=64]
I/O ports at 3000 [size=64]
Capabilities: <access denied>
00:01.2 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: 66MHz, fast devsel
00:01.3 Co-processor: nVidia Corporation MCP67 Co-processor (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 11
Memory at f6200000 (32-bit, non-prefetchable) [size=512K]
OK. IN Hardware Drivers it gives the option to install two proprietary drivers:
NVIDIA accelerated graphics driver (version 180) [Recommended]
NVIDIA accelerated graphic driver (version 173)
Do I really need to install those proprietary drivers to fix the screen resolution? I don't need any 3D acceleration capabilities.
Daisuke_Aramaki
April 16th, 2009, 08:13 PM
Here is the output:
ubuntu@ubuntu:~$ lspci -v
00:00.0 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0
Capabilities: <access denied>
00:01.0 ISA bridge: nVidia Corporation MCP67 ISA Bridge (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0
00:01.1 SMBus: nVidia Corporation MCP67 SMBus (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: 66MHz, fast devsel, IRQ 10
I/O ports at 3080 [size=64]
I/O ports at 3040 [size=64]
I/O ports at 3000 [size=64]
Capabilities: <access denied>
00:01.2 RAM memory: nVidia Corporation MCP67 Memory Controller (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: 66MHz, fast devsel
00:01.3 Co-processor: nVidia Corporation MCP67 Co-processor (rev a2)
Subsystem: Hewlett-Packard Company Device 30cf
Flags: bus master, 66MHz, fast devsel, latency 0, IRQ 11
Memory at f6200000 (32-bit, non-prefetchable) [size=512K]
OK. IN Hardware Drivers it gives the option to install two proprietary drivers:
NVIDIA accelerated graphics driver (version 180) [Recommended]
NVIDIA accelerated graphic driver (version 173)
Do I really need to install those proprietary drivers to fix the screen resolution? I don't need any 3D acceleration capabilities.
you don't have to turn on those capabilities. If you don't install the driver for your graphic card, then you cannot use the proper resolution.
CatKiller
April 16th, 2009, 08:15 PM
Normally, resolution problems are caused by one of the monitor, the graphics card, or the graphics driver not passing the EDID information to X that lets it automatically set the correct refresh rate, and so it defaults to really low values that won't damage any monitors. You can manually set the values for your monitor by putting the VertRefresh and HorizSync ranges in your xorg.conf. You should be able to get these numbers from the manual or specifications for your monitor. These values go in the "Monitor" Section of xorg.conf.
You can edit xorg.conf with
sudo cp /etc/X11/xorg.conf /etc/X11/xorg.conf.backup
gksudo gedit /etc/X11/xorg.confBear in mind that these are the values for my monitor. You'll need to put in the values for your monitor, otherwise you could well permanently damage your monitor.
Section "Monitor"
Identifier "Configured Monitor"
HorizSync 30-95
VertRefresh 50-160
EndSection
ubuntu27
April 16th, 2009, 08:27 PM
ok. Case Closed.
Thank you guy.
Since I am using DektopCD, I will wait until the final release to install the OS and the Proprietary Video Driver.
Thank you again.
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