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Old 04-29-2006, 01:09 PM   #1
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Registered: Apr 2006
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Screen resolution wrong at every thirrd boot!

Hi there.

I've just installed FC5 on my IBM xSeries 206 eServer.

As I'm on a wireless network, I just installed my Netear WG111T wirless network adapter using Madwifi. However, during installation yum also updated my kernal to 2.6.16

The problem is that this kernal seems to hate my graphics card; every time I reboot, it fails to find the correct screen resolution, and so I get 'signal over range' appear on my monitor. If I pull the plug out and restart, I gat the same thing again. However, on the thrid reboot its all fine and dandy.

I've looked in my xorg.conf file, and it seems to be listing the correct resolutions, as well as the right hardware.

I've no idea why it fine again after every thrid boot; no files should change, should they?

uname -r is 2.6.16-1.2096_FC5

And the contents of my xorg.conf is;
# Xorg configuration created by system-config-display

Section "ServerLayout"
Identifier "single head configuration"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"

Section "Files"

# Multiple FontPath entries are allowed (they are concatenated together)
# By default, a font server independent of the X server is
# used to render fonts.
FontPath "unix/:7100"

Section "Module"
Load "dbe"
Load "extmod"
Load "fbdevhw"
Load "glx"
Load "record"
Load "freetype"
Load "type1"
Load "dri"

Section "InputDevice"

# Specify which keyboard LEDs can be user-controlled (eg, with xset(1))
# Option "Xleds" "1 2 3"
# To disable the XKEYBOARD extension, uncomment XkbDisable.
# Option "XkbDisable"
# To customise the XKB settings to suit your keyboard, modify the
# lines below (which are the defaults). For example, for a non-U.S.
# keyboard, you will probably want to use:
# Option "XkbModel" "pc102"
# If you have a US Microsoft Natural keyboard, you can use:
# Option "XkbModel" "microsoft"
# Then to change the language, change the Layout setting.
# For example, a german layout can be obtained with:
# Option "XkbLayout" "de"
# or:
# Option "XkbLayout" "de"
# Option "XkbVariant" "nodeadkeys"
# If you'd like to switch the positions of your capslock and
# control keys, use:
# Option "XkbOptions" "ctrl:swapcaps"
# Or if you just want both to be control, use:
# Option "XkbOptions" "ctrl:nocaps"
Identifier "Keyboard0"
Driver "kbd"
Option "XkbModel" "pc105"
Option "XkbLayout" "gb"

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "IMPS/2"
Option "Device" "/dev/input/mice"
Option "ZAxisMapping" "4 5"
Option "Emulate3Buttons" "yes"

Section "Monitor"

### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
### Comment all HorizSync and VertSync values to use DDC:
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "LCD Panel 1024x768"
DisplaySize 300 230
### Comment all HorizSync and VertSync values to use DDC:
HorizSync 31.5 - 48.5
VertRefresh 40.0 - 70.0
Option "dpms"

Section "Device"
Identifier "Videocard0"
Driver "radeon"
VendorName "Videocard vendor"
BoardName "ATI Technologies Inc RV280 [Radeon 9200 PRO]"

Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 16
Modes "1024x768" "800x600" "640x480"
SubSection "Display"
Viewport 0 0
Depth 24
Modes "1024x768" "800x600" "640x480"

Section "DRI"
Group 0
Mode 0666
Any advice would be greatly appreciated, thanks in advance

Old 04-29-2006, 02:09 PM   #2
LQ Guru
Registered: Mar 2002
Location: Salt Lake City, UT - USA
Distribution: Gentoo ; LFS ; Kubuntu
Posts: 12,612

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Shooting in the dark here (as probably most will since this is an intermittent problem) any chance you have conflicts with IRQ's and the videocard? Check in your server's BIOS to see if you can assign your Videocard it's own IRQ seperate from the others.


Old 04-30-2006, 11:53 AM   #3
LQ Newbie
Registered: Apr 2006
Posts: 7

Original Poster
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Hi, thanks for the quick response.

I'd try that, however the problem has now got quite a bit worse, and now I can't seem to boot at all. Is there anyway I can stop xorg from starting at boot? I've done an interactive startup but it doesnt seem to ask me if I want to start x (I'm assuming that that would let me use the CLI to log in). Ill try another couple of reboots (I'm using windows at the moment),and try go check the IRQ's. If that doesnt work I'll try plugging it into my higher resolution monitor downstairs.

Thanks again for the quick response.
Old 04-30-2006, 12:23 PM   #4
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Registered: Apr 2006
Posts: 7

Original Poster
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ok, I finally got it to boot again by selecting my old kernel from GRUB (2.15.x). I've now rebooted again, and this time when I selected 2.16.x everything was fine! It seems to be a kernel problem, but I really cant understand which files are being changed at boot up!

Also, I can't find a way to change the IRQ of my videocard from BIOS, but I did try rebooting after removing the video card, and booting using my motherboards graphics chip; the problem remained.

Any other suggestions would be really appreciated, this is really starting to annoy me now!


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