Lorenzo wrote:
> Hi everybody,
>
> I don't understand. I must say I'm not an expert but i've never seen such a
> thing...
>
> Don't know thanks to which saint of the paradise (maybe because there has
> been a blackout and turning on the computer, he had something to say), but
> my Kubuntu 7.10 had changed the screen resolution in a strange way, like
> 1200x800 (and i don't have a widescreen monitor)...
>
> Tried to change resolution with KDE Systen Settings, but there wasn't the
> resolution i was looking for.
>
> So, I thought that the problem could be in xorg.conf (it's the file that
> determinates resolution, isn't it?)
>
> So i tried with
>
> sudo dpkg-reconfigure xserver-xorg
>
> I answered to all questions full of hope, and to be sure, I selected just
> the only resolution i wanted and i had before this (1152*864).
>
> Drinking a very christmas-scented Lagavulin, I reboot!
>
> None, now it goes 1024*768
>
> Logout, login with another user, and he has a 1280*960 or something like
> that resolution...
>
> Where do this resolution come from???
>
> I also tried to edit xorg.conf, and my "screen" section now says:
>
> Section "Screen"
> Identifier "Default Screen"
> Device "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
> Monitor "Monitor Generico"
> DefaultDepth 24
> SubSection "Display"
> Modes "1152x864"
> EndSubSection
> EndSection
>
> What do you think about it???
> Can you help me?
>

You've probably done this, but after I re-configured the .org file, I
still had to access screen resolution in the Gnome menu and set what I
wanted. What the re-configure did was to make available resolutions that
weren't there on the default install.
Dave Cohen

On Mon, 24 Dec 2007 16:30:36 +0000, Dave Cohen wrote:

> Lorenzo wrote:
>> Hi everybody,
>>
>> I don't understand. I must say I'm not an expert but i've never seen such a
>> thing...
>>
>> Don't know thanks to which saint of the paradise (maybe because there has
>> been a blackout and turning on the computer, he had something to say), but
>> my Kubuntu 7.10 had changed the screen resolution in a strange way, like
>> 1200x800 (and i don't have a widescreen monitor)...
>>
>> Tried to change resolution with KDE Systen Settings, but there wasn't the
>> resolution i was looking for.
>>
>> So, I thought that the problem could be in xorg.conf (it's the file that
>> determinates resolution, isn't it?)
>>
>> So i tried with
>>
>> sudo dpkg-reconfigure xserver-xorg
>>
>> I answered to all questions full of hope, and to be sure, I selected just
>> the only resolution i wanted and i had before this (1152*864).
>>
>> Drinking a very christmas-scented Lagavulin, I reboot!
>>
>> None, now it goes 1024*768
>>
>> Logout, login with another user, and he has a 1280*960 or something like
>> that resolution...
>>
>> Where do this resolution come from???
>>
>> I also tried to edit xorg.conf, and my "screen" section now says:
>>
>> Section "Screen"
>> Identifier "Default Screen"
>> Device "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
>> Monitor "Monitor Generico"
>> DefaultDepth 24
>> SubSection "Display"
>> Modes "1152x864"
>> EndSubSection
>> EndSection
>>
>> What do you think about it???
>> Can you help me?
>>
>
> You've probably done this, but after I re-configured the .org file, I
> still had to access screen resolution in the Gnome menu and set what I
> wanted. What the re-configure did was to make available resolutions that
> weren't there on the default install.
> Dave Cohen

Also the same for KDE. Just went through this a couple weeks ago when I
bought a widescreen monitor and needed 1680x1050. You still need to adjust
your monitor setting in the GUI.

Lorenzo wrote:
> Hi everybody,
>
> I don't understand. I must say I'm not an expert but i've never seen such a
> thing...
>
> Don't know thanks to which saint of the paradise (maybe because there has
> been a blackout and turning on the computer, he had something to say), but
> my Kubuntu 7.10 had changed the screen resolution in a strange way, like
> 1200x800 (and i don't have a widescreen monitor)...

After upgrading to 7.10., I too had all sorts of problems with my ATI
card. Now, AMD has taken over ATI and opened the specs, so better times
are on their way.

Anyway, what I did was reinstalling my ATI linux driver (fglrx), even
so, it required work & reboots to get the wide-screen and external
monitor working at max resolution. Sometimes, X wouldn't start.


> I also tried to edit xorg.conf, and my "screen" section now says:
>
> Section "Screen"
> Identifier "Default Screen"
> Device "ATI Technologies Inc Radeon RV100 QY [Radeon 7000/VE]"
> Monitor "Monitor Generico"
> DefaultDepth 24
> SubSection "Display"
> Modes "1152x864"
> EndSubSection
> EndSection
>
> What do you think about it???
> Can you help me?

Step 1. Reinstall your ATI driver manually
Step 2. Manually edit /etc/X11/xorg.conf.

In particular, find your modeline e.g.:

$ gtf 1152 864 60

# 1152x864 @ 60.00 Hz (GTF) hsync: 53.70 kHz; pclk: 81.62 MHz
Modeline "1152x864_60.00" 81.62 1152 1216 1336 1520 864 865 868
895 -HSync +Vsync

and insert the last line above, like I have done here:

Section "Modes"
Identifier "Modeline-0"
ModeLine "1440x900_60.00" 106.5 1440 1520 1672 1904 900 901
904 932 -hsync +vsync
sync +vsync
EndSection


Section "Monitor"
Identifier "aticonfig-Monitor[0]"
UseModes "Modeline-0"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" "Generic Autodetecting Monitor"
Option "DPMS" "true"
EndSection

To force laptop to use external monitor (if available), I used

$ aticonfig --force-monitor=crt1

which gave

Section "Device"
Identifier "aticonfig-Device[0]"
Driver "fglrx"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "ForceMonitors" "crt1"
EndSection

and
$ aticonfig --resolution=0,1600x1200,1280x1024,1024x768

gave

Section "Screen"
Identifier "aticonfig-Screen[0]"
Device "aticonfig-Device[0]"
Monitor "aticonfig-Monitor[0]"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1600x1200" "1280x1024" "1024x768"
EndSubSection
EndSection


There are detailed howto's out there, lots of people has been in trouble
here.

--
Tor