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setting screen rez.

mark ahlenius
Occasional Advisor

setting screen rez.

Hi,

now that I have X11 working under RHL 7.3, I cannot seem to change the screen resolution. It seems stuck somewhere in one of the lowest resolution settings. Thus my browser and editors come up very large and I can't see whole documements like I can under an XP boot.

I have a SiS 650 graphics chipset on a HP Pavilion 540n computer. I got a link to a patched driver from this group (thanks!).

I have tried changing the Screen settings and Display settings in the /etc/X11/XF86Config-4 file, but cannot get the resolution to change.

below is a snapshot of that section of the file;

Section "Screen"
Identifier "Screen 1"
Device "SiS 650"
Monitor "Vivitron 1776"
DefaultDepth 16

Subsection "Display"
Depth 8
# Modes "640x480"
Modes "640x480" "800x600" "1024x768"
# Modes "1280x1024" "640x480" "800x600" "1024x768"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 16
Modes "640x480" "800x600" "1024x768"
# Modes "1280x1024" "640x480" "800x600" "1024x768"
# Modes "800x600"
ViewPort 0 0
EndSubsection
Subsection "Display"
Depth 24
Modes "640x480" "800x600" "1024x768"
# Modes "1280x1024" "640x480" "800x600" "1024x768"
# Modes "1024x768"
ViewPort 0 0
EndSubsection
EndSection

********************

Here is the section on the device driver:

Section "Device"
Identifier "SiS 650"
Driver "sis"
# VideoRam 256
# Insert Clocks lines here if appropriate
EndSection

*********************


Also if I try to enable the "VideoRam" section ( the chipset has 32 Megs), it prevents X from coming up.

Any help would be appreciated.

best regards,

'mark
2 REPLIES
I_M
Honored Contributor

Re: setting screen rez.

Hi

Your configuration said
> DefaultDepth 16

so check out Depth 16.

> Depth 16
Modes "640x480" "800x600" "1024x768"

Looks like the first candidate resolution is 640x480.
Why don't you change this line?

Then if your X Window is up, try xdpyinfo to see your current resolution and depth.

And also /var/log/Xfree86.0.log give you more information such as how many video RAM your X Window recognize.

Good luck

Kodjo Agbenu
Honored Contributor

Re: setting screen rez.

Hi Mark,

SiS 650 is not yet supported by XFree86 4.x. That seems to be the reason why the 32 meg video RAM is not accepted.

-> http://www.xfree86.org/4.2.0/Status30.html#30

If you want to be a beta-tester for future XFree86 releases, I found this on Google :

https://listman.redhat.com/pipermail/xfree86-list/2002q2/000374.html

Otherwise, you will find an "official" driver here :

http://www.sis.com/support/driver/linux.htm

It was developed for XFree86 4.0 and 4.1 but in my op??nion, it should work with 4.2.

Good luck.

Kodjo
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