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From: Brett Mahar on 10 Aug 2010 20:10
Hi,
I have an emachine ET1300-02 computer, which came with emachine
1366x768 monitor. MCP61 motherboard with Nvidia GeForce G100 graphical
chipset.
When installing Debian 5 or 5.05, it come sup with a floating "output
not supported" on the screen.
By pressing ctrl+alt++ I can get to a visible screen, or by logging
into single user mode I can edit xorg.conf to get to a default screen
size of 1024x768, so screen is viewable on reboot. However, I cannot
get above this resolution. This only happens with Debian, with the
same hardware on OpenBSD, Fedora 12 or 13, Ubuntu 9.10 or 10.04, I can
get correct resolution no problem.

I have tried deleting completely the xorg.conf file, also have editied
it using output from cvt to set:
Modeline "1368x768_60.00" 85.25 1368 1440 1576 1784 768 771 781 798
-hsync +vsync
Also have added new modes "1368x768" "1366x768" "1368x768_60.00" to no effect.

Command xrandr gives the output:
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 768
default connected
1024x768 0.0
800x600 61.0
640x480 60.0
640x400 0.0
320x400 0.0
320x240 0.0
320x200 0.0

As root I run the script:
su -c xrandr
xrandr --newmode "1368x768" 60 1368 1440 1576 1784 768 771 781 798
-hsync +vsync
xrandr --addmode VGA 1368x768
xrandr --output VGA --preferred 1368x768 --fb 1368x768 --fbmm 1368x768
--mode 1368x768
xrandr --size 1368x768
#and all conceivable variations of the above!!!!

If I type command xrandr again:
Screen 0: minimum 320 x 200, current 1024 x 768, maximum 1024 x 768
default connected
1024x768 0.0
800x600 61.0
640x480 60.0
640x400 0.0
320x400 0.0
320x240 0.0
320x200 0.0
1368x768 (0x4e) 60.0MHz
h: width 1368 start 1440 end 1576 total 1784 skew 0 clock 33.6KHz
v: height 768 start 771 end 781 total 798 clock 42.1Hz

Somehow I am not able to get the "maximum" above 1024x768. Anyone have
any ideas where I should be looking?
By the way, xrandr manual page says: "If invoked without any option,
it will dump the state of the outputs, showing the existing modes
for each of them, with a ’+’ after the preferred mode and a ’*’ after
the current mode."
As you can see from outputs above, there is no '+' or '*' when I use
this command.

Cheers, Brett.


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Prev: Re (n): finding the ip address for dns, nslookup & etc.
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