Jochen Wiedmann wrote:

Hi,

I have a Dell Latitude D620 laptop running Fedora 10 with an Intel 945GM graphics controller. My display is configured as an "LCD Panel 1440x900". I would like to have that resolution, but system-config-display offers 1024x768 only.

Using previous Fedora versions and 915resolution I had that mode in the past. I also have this mode under Windows.

Any hints what I might research or reconfigure?

Thanks,

Jochen

on my laptop with Intel 965 chipset I can set the proper 1280x800 resolution of the display. I didn't have system-config-display installed.. but gnome-display-properties was installed.. Perhaps you can try that.

In system-config-display did you try setting the monitor to Generic LCD 1440x900 or some other thing?

Also look at /var/log/Xorg.0.log You can see if it is using the proper 'intel' driver and what the available modes are

in my log file I can see that my hardware combination supports the following:

(II) intel(0): Modeline "1280x800"x59.9 71.00 1280 1328 1360 1440 800 803 809 823 -hsync -vsync (49.3 kHz) II) intel(0): Modeline "1024x768"x60.0 65.00 1024 1048 1184 1344 768 771 777 806 -hsync -vsync (48.4 kHz) (II) intel(0): Modeline "800x600"x60.3 40.00 800 840 968 1056 600 601 605 628 +hsync +vsync (37.9 kHz) (II) intel(0): Modeline "640x480"x59.9 25.18 640 656 752 800 480 490 492 525 -hsync -vsync (31.5 kHz)

those are some places to start looking.

Petrus de Calguarium wrote:

I am in the same boat. I could be mistaken, but I thought this was part of kernel mode setting. If I understand correctly, to enable modelines not supported by the bios (hence, formerly, 915resolution), the kernel modesetting must work, and that is not sheduled to be until kernel-2.6.29 for Intel graphics.

Someone please correct me, as I am also getting tired of waiting and waiting and...

No, the X11 modesetting should also work. The old driver which used the BIOS for modesetting isn't used anymore, all current modesetting implementations, both the X11 one and the kernel one, do the work on their own. I don't know why it isn't offering you the correct resolution. You can hardcode it in xorg.conf.

Kevin Kofler

On Tue, Dec 23, 2008 at 7:49 AM, Michael Iatrou m.iatrou@freemail.gr wrote:

When the date was Tuesday 23 December 2008, Jochen Wiedmann wrote:

...

I have a Dell Latitude D620 laptop running Fedora 10 with an Intel 945GM graphics controller. My display is configured as an "LCD Panel 1440x900". I would like to have that resolution, but system-config-display offers 1024x768 only.

Try:

   $ xrandr --output LVDS --mode 1440x900

If the driver complains about unknown mode 1440x900, execute

gtf 1440 900 60

(the syntax is gtf horizontal vertical refresh_rate) that will give you a modeline as output

for example for 1280 1024 85 (my external monitor) the modeline is 1280x1024_85.00 159.36 1280 1376 1512 1744 1024 1025 1028 1075 -HSync +Vsync

Note the first 1280x1024_85.00 is the name of the mode, the rest are some parameters the video driver needs to handle the mode correctly.

Then execute the following: xrandr --newmode <modeline> xrandr --addmode LVDS 1440x900_60.00 xrandr --output LVDS --mode 1440x900_60.00

Replace numbers if necessary. This works for me. My system-config also doesn't display the right modes for my monitors. I'm not sure about automating it (someone else will surely chime in); I execute something similar in a script manually after I log in to get my dual head display to my liking.

Peter