Ubuntu 9.04 HP LP2065 monitor resolution not properly recognised

[Barna Kosa]

HP 6510b notebook, display Mobile GM965/GL960 Integrated Graphics Controller
For a external 20 inch HP LP2065 monitor resolution 1600x1200 is not recognized
In previous releases it worked

[Thierry (thierry38)]

Same problem here.

Computer = Compaq NC6320
Kernel = 2.6.28-11-generic (#42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009)
Gnome = 2.26.1 (Ubuntu 2009-05-06)
Xorg version = unknown (09 April 2009 02:10:02AM)
Graphic card =
> lspci -nn | grep VGA
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2] (rev 03)

Resolution of embedded LCD screen = 1400x1050
Resolution of external LP2065 monitor = 1360x768 (when 1600x1200 is expected)

[Barna Kosa (barna-kosa)]

Hi Thierry,

I solved the problem modifying the /etc/X11/xorg.conf file:

Section "Screen"
        Identifier "Default Screen"
        Monitor "Configured Monitor"
        Device "Configured Video Device"
        SubSection "Display"
                Virtual 2560 1200
                Modes "1600x1200" "1280x1024" "1024x768" "640x480"
        EndSubSection
EndSection

Regards,

Barna

2009/6/17 Thierry <email address hidden>

> Same problem here.
>
> Computer = Compaq NC6320
> Kernel = 2.6.28-11-generic (#42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009)
> Gnome = 2.26.1 (Ubuntu 2009-05-06)
> Xorg version = unknown (09 April 2009 02:10:02AM)
> Graphic card =
> > lspci -nn | grep VGA
> > 00:02.0 VGA compatible controller [0300]: Intel Corporation Mobile
> 945GM/GMS, 943/940GML Express Integrated Graphics Controller [8086:27a2]
> (rev 03)
>
> Resolution of embedded LCD screen = 1400x1050
> Resolution of external LP2065 monitor = 1360x768 (when 1600x1200 is
> expected)
>
> --
> Ubuntu 9.04 beta HP LP2065 monitor resolution not properly recognized
> https://bugs.launchpad.net/bugs/359011
> You received this bug notification because you are a direct subscriber
> of the bug.
>
> Status in Ubuntu: New
>
> Bug description:
> HP 6510b notebook, display Mobile GM965/GL960 Integrated Graphics
> Controller
> For a external 20 inch HP LP2065 monitor resolution 1600x1200 is not
> recognized
> In previous releases it worked
>

[Thierry (thierry38)]

Hum... thanks for this suggestion Barna, but it does not work (as the problem is different, I think).
You are talking about configuring the X server to handle the resolution provided by the hardware layer
What is our problem here is that the hardware layer (graphic card) does not recognise the HP LP2065 with its proper resolution mode (mode 1600x1200 does not exists for it)...

At least, this is my understanding of the problem, but I may be wrong...

[Thierry (thierry38)]

Any news on this one ?
Any "classification" possible ?

[Jan Schultze (jan-schultze)]

Just switched to HP LP 2065 from a 19" Sony model. I am using a dual monitor setup, the other one has a resolution of 1440x900. Had a similar problem, could only set it to 1600x1024 which is not supported. xorg.conf looked like this:

Section "Screen"
        Identifier "Default Screen"
        Monitor "Configured Monitor"
        Device "Configured Video Device"
        SubSection "Display"
                Virtual 3040 1024
        EndSubSection
EndSection

I changed the virtual resolution to 3040x1200. Now I can adjust the right size within gnome-display-properties. However, I am still using Ubuntu 8.10 - so I'm not sure if this input helps. It seems that the xorg.conf has been updated to reflect the new virtual width properly (used to be 2720). Hope this helps to locate the bug.

[Monkey (monkey-libre)]

I´ve assigned this bug to the xorg package.

Thank You for making Ubuntu better.

[Thierry (thierry38)]

I managed to get rid of the problem, via a special xrandr command:
xrandr --newmode "1600x1200" 161.00 1600 1712 1880 2160 1200 1203 1207 1245 -hsync +vsync
xrandr --addmode VGA1 1600x1200
xrandr --output VGA1 --mode 1600x1200 --above LVDS1

Works fine now !
(still not "automatic, but fine...)

[Bryce Harrington (bryce)]

Hi barna-kosa,

Please attach the output of `lspci -vvnn` and `dmesg`, and attach your /var/log/Xorg.0.log (and maybe Xorg.0.log.old) file from after reproducing this issue. If you're using a custom /etc/X11/xorg.conf please attach that as well.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Bryce Harrington (bryce)]

We're closing this bug since it is has been some time with no response from the original reporter. However, if the issue still exists please feel free to reopen with the requested information. Also, if you could, please test against the latest development version of Ubuntu, since this confirms the bug is one we may be able to pass upstream for help.