Hi all,
Up until today everything has been fine with CentOS on my Toshiba laptop.
I booted into CentOS 4.3 today and Kudzu detected my video card for some
reason. I let it configure it (wish I hadn't now).
I can still get in. X and Gnome work. But the video resolution is
800x640. The LCD is capable of 1024x768. I cannot change it using
Gnome tools or direct editing of /etc/X11/xorg.conf
With the Gnome "Display" system tool I cannot change the monitor to
"Generic LCD Display".
Any help you can offer on getting the 1024x768 display mode to work
again would be appreciated.
Here are the relevant sections from /etc/X11/xorg.conf
Section "Monitor"
Identifier "Monitor0"
VendorName "Monitor Vendor"
ModelName "Unknown monitor"
HorizSync 31.5 - 37.9
VertRefresh 50.0 - 70.0
Option "dpms"
EndSection
Section "Device"
Identifier "Videocard0"
Driver "i810"
VendorName "Videocard vendor"
BoardName "Intel 852"
EndSection
Section "Screen"
Identifier "Screen0"
Device "Videocard0"
Monitor "Monitor0"
DefaultDepth 16
SubSection "Display"
Viewport 0 0
Depth 16
Modes "800x600" "640x480"
EndSubSection
EndSection
--
Mike
Try adding 1024x768 in the modes under the Screen section. Then reboot and see if there is any change. On 6/20/06, Mike M <linux-user at earthlink.net> wrote:> > Hi all, > > Up until today everything has been fine with CentOS on my Toshiba laptop. > > I booted into CentOS 4.3 today and Kudzu detected my video card for some > reason. I let it configure it (wish I hadn't now). > > I can still get in. X and Gnome work. But the video resolution is > 800x640. The LCD is capable of 1024x768. I cannot change it using > Gnome tools or direct editing of /etc/X11/xorg.conf > > With the Gnome "Display" system tool I cannot change the monitor to > "Generic LCD Display". > > Any help you can offer on getting the 1024x768 display mode to work > again would be appreciated. > > Here are the relevant sections from /etc/X11/xorg.conf > > Section "Monitor" > Identifier "Monitor0" > VendorName "Monitor Vendor" > ModelName "Unknown monitor" > HorizSync 31.5 - 37.9 > VertRefresh 50.0 - 70.0 > Option "dpms" > EndSection > > Section "Device" > Identifier "Videocard0" > Driver "i810" > VendorName "Videocard vendor" > BoardName "Intel 852" > EndSection > > Section "Screen" > Identifier "Screen0" > Device "Videocard0" > Monitor "Monitor0" > DefaultDepth 16 > SubSection "Display" > Viewport 0 0 > Depth 16 > Modes "800x600" "640x480" > EndSubSection > EndSection > > -- > Mike > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos >-- Thx Joshua Gimer -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20060620/b2346b08/attachment-0002.html>
I fixed it! I booted up Knoppix (which uses xfree) for some hints. I found that maybe be the horz/vert refresh rates needed ajusting. Going back to CentOS, i found: HorizSync 31.5 - 37.9 and and changed it to: HorizSync 31.5 - 93 and changed: Modes "800x600" "640x480" to: Modes "1024x768" "800x600" "640x480" The key was to change the HorizSync to a wider range. Just changing Modes to include 1024x768 was not sufficient. The system is a laptop with an LCD screen. -- Mike Joshua Gimer wrote:> Try adding 1024x768 in the modes under the Screen section. Then reboot and > see if there is any change. > > On 6/20/06, Mike M <linux-user at earthlink.net> wrote: >> >> Hi all, >> >> Up until today everything has been fine with CentOS on my Toshiba laptop. >> >> I booted into CentOS 4.3 today and Kudzu detected my video card for some >> reason. I let it configure it (wish I hadn't now). >> >> I can still get in. X and Gnome work. But the video resolution is >> 800x640. The LCD is capable of 1024x768. I cannot change it using >> Gnome tools or direct editing of /etc/X11/xorg.conf >> >> With the Gnome "Display" system tool I cannot change the monitor to >> "Generic LCD Display". >> >> Any help you can offer on getting the 1024x768 display mode to work >> again would be appreciated. >> >> Here are the relevant sections from /etc/X11/xorg.conf >> >> Section "Monitor" >> Identifier "Monitor0" >> VendorName "Monitor Vendor" >> ModelName "Unknown monitor" >> HorizSync 31.5 - 37.9 >> VertRefresh 50.0 - 70.0 >> Option "dpms" >> EndSection >> >> Section "Device" >> Identifier "Videocard0" >> Driver "i810" >> VendorName "Videocard vendor" >> BoardName "Intel 852" >> EndSection >> >> Section "Screen" >> Identifier "Screen0" >> Device "Videocard0" >> Monitor "Monitor0" >> DefaultDepth 16 >> SubSection "Display" >> Viewport 0 0 >> Depth 16 >> Modes "800x600" "640x480" >> EndSubSection >> EndSection >> >> -- >> Mike >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos >> > > > > > ------------------------------------------------------------------------ > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos