[SLE] X and XF86Config not using correct resolution

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To: suse-linux-e@suse.com
Date: Wed, 2 Jun 2004 14:30:08 -0500

I have been having a weird problem with X consistently using the resolution I
choose. I am using an ATI AIW 8500DV AGp card and a Samsung 955DF mointor
right now. X currently defaults to 1280x1024 and I can't reliably get
anything higher. Once in a while it does come up as 1600x1200 or 1400x1050
all on its own while sitting at the GUI login screen. It is then a noticeably
different desktop experience because all application's fonts are a lot
smaller, more screen realestate, icons different size, etc! I can't find a
reliable way to repoduce this or get it to consistenetly run at the
resolution I specify.

This has been going on since SUSE 7.3 Pro through 9.1 Pro. I have had an ATI
AIW 128 PCI card or an ATI AIW 8500DV AGP card on at least two different
Samsung monitors (17" and 19" that can do 1280x1024 or 1600x1200
respectively). Same main board, MSI K7T266 Pro2RU lastest BIOS. Have tried
almost all combos of BIOS settings available to me. Have tried pci=noacpi,
acpi=on/off, apm=on/off and combos of these settings. Moved the other PCI
cards around the PCI slots and pulled them all out too.

I have tried kdm, xdm and gdm with no discernable differences. I have verified
my /etc/X11/XF86Config file every which way I can think of. I have used
Sax/Yast to define my graphics subsystem (in single user and init 3 and init
5) and also just plain edited XF86Config by hand. I have used the default
radeon drivers that come with each version of SUSE and the Gatos drivers at
sourceforge to enable the All In Wonder capabilities of the cards. I've tried
the ATI drivers but they didn't change the symptoms. Tried various color
depths also 8, 15, 16, 24 etc. Different monitor definitions and edited the
Monitors database too.

I've tried running with and without the vga= line in the kernel boot options
for grub or lilo. Currently at vga=0x031a or 1280x1024 16bit. This doesn't
seem to make any difference.

What am I missing? Any other troubleshooting steps? Why would X not read my
XF86Config file and use its settings on a consistent basis? My hardware does
support up to 1600x1200 at 16bit and either 60Hz or 65Hz.

Thanks,
Stan

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• Previous message: Jerome R. Westrick: "Re: [SLE] what version of SUSE is the most suitable for desktop use?"
• Next in thread: Anders Johansson: "Re: [SLE] X and XF86Config not using correct resolution"
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• Reply: Ed Harrison: "Re: [SLE] X and XF86Config not using correct resolution"
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