Screen Resolution problem on FC4 (used to work OK on FC3)

eacosta.TakeThisOut@yahoo.com wrote:

> Hello,
>
> I have a 1600x1200 and millions of colors capable LCD and Graphics
> card. However when I set the resolution from Desktop->System
> Settings->Display to 1600x1200, after rebooting the GUI, it does
> panning from a base resolution od 1280x1024 (quite anoying!!). Digging
> around I found there is another tool in Desktop->Preferences->"Screen
> Resolution" This tool doesnt let me get past 1280x1024 no matter what!
>
> I had to go back to the Display Settings an put it back to 1280x1024
> to avoid the annoying panning.
>
> The odd thing is that this used to work fine on FC3. I still have it
> installed on a different partition and I can boot it and set it to
> 1600x1200. I'd really really appreciate any ideas.
>

Log out of your GUI interface, press the three key combo of Ctrl+Alt+F1
[to F6] then log on as root suppling the password when asked. As root
type something like(2 lines, press the 'Enter' key after each one);

init 3
system-config-display --reconfig

See 'system-config-display --help' without the quoters for more options.

You can test by typing 'startx' without the quotes when done type and
your at the CLI type something like 'init 5' without the quotes.
Remember to go back the the CLI and logout for root.


--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety." -- B. Franklin, 1759

eacosta.RemoveThis@yahoo.com wrote:

> Sorry, that didn't make any difference. I still get the panning after
> switching to 1600x1200

Try copying your FC3 /etc/X11/xorg.conf file to the same location for
FC4 (/etc/X11).


--
"They that can give up essential liberty to obtain a little temporary
safety deserve neither liberty nor safety." -- B. Franklin, 1759

post the /etc/X11/xorg.conf I suspect there is a ViewPort option
that forces the window panning. Comment it out, restart Xserver.

HTH


eacosta RemoveThis @yahoo.com wrote:
>
> Sorry, that didn't make any difference. I still get the panning after
> switching to 1600x1200

Here is the bottom of my xorg.conf. I commented the Viewport option out
as you said, but it made no difference:

Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "210T/MP/LXA"
DisplaySize 510 320
HorizSync 30.0 - 93.0
VertRefresh 56.0 - 85.0
Option "dpms"
EndSection

Section "Device"
Identifier "Videocard0"
Driver "ati"
VendorName "Videocard vendor"
BoardName "ATI Mach64"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"

# Viewport 0 0
Depth 24
Modes "1600x1200" "1400x1050" "1280x960" "1280x800"
"1280x1024" "1152x864" "1024x768" "800x600" "640x480"
EndSubSection
EndSection

Section "DRI"
Group 0
Mode 0666
EndSection


Furthermore, I believe the problem is with gnome-display-properties
utility, since it wont let me change the resolution past 1280x1024,
even though system-config-display is set to 1600x1200. I dont remember
gnome-display-properties been part of FC3. I have ran this utility with
strace and I cant see it writing to a configuration file.

eacosta DeleteThis @yahoo.com wrote:
>
> Here is the bottom of my xorg.conf. I commented the Viewport option out
> as you said, but it made no difference:
>
> Section "Monitor"
> Identifier "Monitor0"
> VendorName "Monitor Vendor"
> ModelName "210T/MP/LXA"
> DisplaySize 510 320
> HorizSync 30.0 - 93.0
> VertRefresh 56.0 - 85.0
> Option "dpms"
> EndSection
>
> Section "Device"
> Identifier "Videocard0"
> Driver "ati"
> VendorName "Videocard vendor"
> BoardName "ATI Mach64"
> EndSection
>
> Section "Screen"
> Identifier "Screen0"
> Device "Videocard0"
> Monitor "Monitor0"
> DefaultDepth 24
> SubSection "Display"
>
> # Viewport 0 0
> Depth 24
> Modes "1600x1200" "1400x1050" "1280x960" "1280x800"
> "1280x1024" "1152x864" "1024x768" "800x600" "640x480"
> EndSubSection
> EndSection
>
> Section "DRI"
> Group 0
> Mode 0666
> EndSection
>
> Furthermore, I believe the problem is with gnome-display-properties
> utility, since it wont let me change the resolution past 1280x1024,
> even though system-config-display is set to 1600x1200. I dont remember
> gnome-display-properties been part of FC3. I have ran this utility with
> strace and I cant see it writing to a configuration file.


Thanks for posting. I assume you restarted X and saw not difference.

My only thought is the the ATI driver that FC4 has is not the same as
the ATI driver FC3 had. Your xorg.conf seems ok. You could remove some
of the Modes, just keep the ones you like.

The gnome | kde tool may not show you the max resolution but the system
stars at the max. resolution and then drops to the lesser if the driver
cant handle it.

HTH