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Hi.

I have recently installed linux at my HP nx6110 laptop computer
(Gnome).

My screen for the laptop can handle more than 1024x768, however i use
an external monitor Acer AL2021 that handles 1600x1200.

The computer contains an Intel 915GM/GMS, 910GML video card.



When i go to System->Preferences->Screen Resolution i can only change
from 640x480, 800x600 and 1024x768. I can only select 75 Hz.

I know that both the videocard and monitor can handle 1600x1200.


I have tried to poke in /etc/X11/xorg.conf but without luch. The data
in the screen resolution dialog won't change.

Her's my latest try:

*snip*


Section "DRI"
Mode 0666
EndSection

Section "Device"
Identifier "Intel Corporation Intel Default Card"
Driver "i810"
#BusID "PCI:0:2:0"
VideoRam 131072
Option "NoAccel" "false"
Option "DRI" "true"
EndSection

Section "Monitor"
Identifier "m1"
HorizSync 31-81
VertRefresh 56-75
EndSection

Section "Screen"
Identifier "Default Screen"
Device "Intel Corporation Intel Default Card"
Monitor "m1"
DefaultDepth 24
SubSection "Display"
Depth 1
Modes "1600x1200" "1024x768"
EndSubSection
SubSection "Display"
Depth 4
Modes "1600x1200" "1024x768"
EndSubSection
SubSection "Display"
Depth 8
Modes "1600x1200" "1024x768"
EndSubSection
SubSection "Display"
Depth 15
Modes "1600x1200" "1024x768"
EndSubSection
SubSection "Display"
Depth 16
Modes "1600x1200" "1024x768"
EndSubSection
SubSection "Display"
Depth 24
Modes "1600x1200" "1024x768"
EndSubSection
EndSection


*snip*


I have looked around the net for solutions but without luck. (i have
also done the dpkg reconfigure of the xserver) Nothing seems to affect.

please help...

Brgds Robert

If you find the solution can you post it here - I have the same problem.

I might have..

According to http://www.xfree86.org/~dawes/845driver.html - [Why can't
I get high resolution/depth modes?]

*snipp*

The Intel integrated video hardware uses a "unified memory
architecture", which means that video memory is allocated from normal
system memory. Most BIOSes have an option in one of the configuration
screens to set the amount of system memory that is set aside for use as
video memory at boot time. If you are having problems using high
resolution or high colour depth modes, this is the first thing to
check. If your BIOS configuration has such option, change the video
memory amount to 8MB or higher, and the problem should be solved.

Unfortunately not all machines have such a BIOS configuration option.
It if often the case with laptops that the amount of memory that gets
allocated at boot time is fixed at 1MB (actually 832KB). Although the
XFree86 driver can and will allocate more (if the correct agpgart
kernel support is present), the mechanism used to inform the video BIOS
of the additional allocation doesn't seem to be implemented on these
laptops. This results in the video BIOS refusing to program video modes
that require more than 832KB.

*snipp*


It seems that this could be the problem..
What do you think?

Brgds Robert