Display issues

[Oweirdone]

(12.04.1 LTS)

Need some help:
Running Ubuntu, but my laptop screen is broken, so I have a second monitor hooked up.

Problem 1) It displays on this monitor, but not in the right resolution, and when I try to select resolutions, the one I need isn't there.
Problem 2) It doesn't recognise there is a second monitor, it believes it's displaying on the laptop screen, which could be why the resolution choices are wrong.

How do I get it to recognise that it's displaying on a separate monitor?

Many thanks,

Owe.

[Crossbow]

I had that first problem last week. I fixed it by installing Nvidia-173 and removing the older Nvidia driver. I downloaded it from the Nvidia website and did the install/remove with Synaptic.

[NikTh]

(12.04.1 LTS)

Need some help:
Running Ubuntu, but my laptop screen is broken, so I have a second monitor hooked up.

Problem 1) It displays on this monitor, but not in the right resolution, and when I try to select resolutions, the one I need isn't there.
Problem 2) It doesn't recognise there is a second monitor, it believes it's displaying on the laptop screen, which could be why the resolution choices are wrong.

How do I get it to recognise that it's displaying on a separate monitor?

Hi ,
please give more info.

What is the graphics card you use ? and what driver you use ? and the connection , is via HDMI or VGA ?

As for the reference to "Laptop Screen" this is probably a mistake of "System Settings > Displays" do not bother about that.

Thanks

[Oweirdone]

The laptop is an E-System Sorrento 1. The connection is standard VGA (I believe). It doesn't say what graphics card it uses, rather, unhelpfully, it says, "Integrated" and having searched online I seem unable to find the specifications for the laptop. Possibly becuase it was sold by Curries, who have since gone out of business.

I've ensured that the software is up to date, but without knowing which make of graphics card is i nit, I can't download the relevant divers.

Having said that, the card is,a s I said, integrated, and the processor is an 'Intel Celeron C900'.

Thanks

Owe.

[NikTh]

Hi ,
can you open a terminal (even in this resolution) and provide the results of below commands ?

lspci -nnk | grep -iA2 vga
sudo lshw -C display
xrandr

Copy-paste the results back here.
Please click on "New Reply" and put the results inside [CODE] tags to be easier to read. See here how



Thanks

[Oweirdone]

jkmcc@jkmcc-Sorrento:~$ lspci -nnk | grep -iA2 vga
01:00.0 VGA compatible controller [0300]: Silicon Integrated Systems [SiS] 771/671 PCIE VGA Display Adapter [1039:6351] (rev 10)
    Subsystem: Elitegroup Computer Systems Device [1019:5057]
jkmcc@jkmcc-Sorrento:~$ sudo lshw -C display
[sudo] password for jkmcc: 
Sorry, try again.
[sudo] password for jkmcc: 
  *-display UNCLAIMED     
       description: VGA compatible controller
       product: 771/671 PCIE VGA Display Adapter
       vendor: Silicon Integrated Systems [SiS]
       physical id: 0
       bus info: pci@0000:01:00.0
       version: 10
       width: 32 bits
       clock: 66MHz
       capabilities: pm agp agp-3.0 vga_controller cap_list
       configuration: latency=0
       resources: memory:c0000000-cfffffff memory:d4000000-d401ffff ioport:9000(size=128)

[NikTh]

Oh man !!

You have this SIS graphics card..
Sorry ... I cannot help you with that.

The only thing I can suggest is to try to upgrade the driver through a PPA.. (maybe)

You can see the current installed driver with this command

apt-cache policy xserver-xorg-video-sis

or

apt-cache policy xserver-xorg-video-siliconmotion

The Xorg-edgers PPA have a newer version .. (almost always) in their repository.

If you want to update and test run

sudo add-apt-repository ppa:xorg-edgers/ppa
sudo apt-get update 
sudo apt-get dist-upgrade

Be aware that this repository is NOT considered as stable , read the description.

Also you can try to add the sis module to /etc/modules and see if this can help ..

echo "sis" | sudo tee -a /etc/modules

In case of a problem with the upgrade of driver you can revert back with

sudo apt-get install ppa-purge
sudo ppa-purge ppa:xorg-edgers/ppa
sudo apt-get update ; sudo apt-get dist-upgrade

Thats all my suggestions about this chip.

Good Luck.