Shulou(Shulou.com)06/01 Report--

This article introduces the knowledge of "how to solve the problem of high resolution that cannot be set by ubuntu". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

After installing gnome on ubuntu12.10 to switch to classic mode, the highest rate was only 10240768. I thought it was caused by no graphics card driver. I searched N many ways on the Internet and installed all kinds of nvidia drivers, but I still didn't get it.

Instead, the resolution can only be set to a maximum of 854 to 480, so that the window buttons are not visible. Later, I want to choose the default mode when I want to start, instead of gnome classic mode, just go back to the default mode, but it still doesn't work.

Then delete the gnome, delete directly use sudo apt-get remove gnome*, to delete all gnome-related files, directly leading to the startup can not be started.

Finally, there is no way to reinstall ubuntu12.10, and choose the first default to retain the existing documentation and software to continue the installation. as a result, although it can be driven after installation, the highest resolution can only be 10240768.

Later, I went to the ubutnu software center to install the current nvidia driver, but it still didn't work. Because there is no choice to install the update when reinstalling, so go to the "software updater" to install the update, restart after the update still has no effect.

Then I thought of upgrading to 13.04. After a long wait for more than an hour, the result of the upgrade still failed. The resolution of 10.24 to 768 remains the same.

At this time, search for "ubuntu hardware display unknown", found the following article, according to the operation is unexpectedly successful, set the resolution to 1400mm 900, although the "system setup / display" still shows unknown, but the resolution is indeed improved.

(transfer) ubuntu resolution settin

The following is the content of this article:

->

One of my 11-inch netbooks is equipped with ubuntu. Recently, a 19-inch monitor has been attached. The resolution can only be 1024x768 at most. The "unknown" monitor is displayed in the monitor settings.

You can see the information of the video card with the following command:

$lspci | grep VGA

00Rom 02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03)

I always thought that the graphics card driver was not installed, so I downloaded the source code of the intel graphics card linux driver, and took several days to compile (during which I installed more than the package it depends on), but finally failed to install it, and failed to fail the Xorg. But also reinstalled the system. In fact, the driver of the intel integrated graphics card has been installed, and the command sudo apt-get install xserver-xorg-video-intel can also be installed.

After that, I also saw solutions such as modified / etc/X11/xorg.conf on the Internet. I just got a big head.

Finally, the solution was found: the xrandr command.

First, run xrandr directly to check the resolution:

$xrandr

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 4096 x 4096

LVDS1 connected (normal left inverted right x axis y axis)

1024x600 60.0 +

800x600 60.3 56.2

640x480 59.9

VGA1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 0mm

1024x768 60.0 *

800x600 60.3 56.2

848x480 60.0

640x480 59.9

The line marked with an asterisk is the resolution I am using.

Use the cvt command to generate a modeline to prepare for the subsequent addition of resolution:

$cvt 1440

# 1440x900 59.89 Hz (CVT 1.30MA) hsync: 55.93 kHz; pclk: 106.50 MHz

Modeline "1440x900_60.00" 106.50 1440 1528 1672 1904 903 909 934-hsync + vsync

Then run xrandr-- newmode to create a resolution mode, using the content after "Modeline" (--rmmode deletes this mode):

$xrandr-- newmode "1440x900_60.00" 106.50 1440 1528 1672 1904 903 909 934-hsync + vsync

Then use xrandr-- addmode to add this mode to the monitor (--delmode removes the mode from the monitor):

$xrandr-addmode VGA1 "1440x900_60.00"

Finally, apply this model:

$xrandr-output VGA1-mode "1440x900_60.00"

At this point, my screen looks much cleaner.

Check it out with xrandr:

$xrandr

Screen 0: minimum 320 x 200, current 1440 x 900, maximum 4096 x 4096

LVDS1 connected (normal left inverted right x axis y axis)

1024x600 60.0 +

800x600 60.3 56.2

640x480 59.9

VGA1 connected 1440x900+0+0 (normal left inverted right x axis y axis) 0mm x 0mm

1024x768 60.0

800x600 60.3 56.2

848x480 60.0

640x480 59.9

1440x900_60.00 59.9 *

After setting up, my screen deviates about 5 pixels to the left, which can be adjusted directly on the monitor (hardware).

Reference: https://wiki.ubuntu.com/X/Config/Resolution

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.