How to change display resolution on G5 XServe (YDL 4.0.1) ?

[Paul Russell]

I just installed YDL 4.0.1 on a G5 XServe and everything went reasonably
smoothly, except it's stuck on 640x480 resolution. If I switch to the
monitor's native resolution (1280x1024) then X won't start up and I have
to restore /etc/X11/XF86Config to get things working again.

I could just about live with 640x480 if I had to, but I can't get at the
buttons on some of the windows in KDevelop, so I have to find a solution
for this.

Paul

[Jack Malmostoso]

Post by Paul Russell
I just installed YDL 4.0.1 on a G5 XServe and everything went reasonably
smoothly, except it's stuck on 640x480 resolution.

Quick'n'dirty: boot an Ubuntu livecd, copy somewhere the
/etc/X11/xorg.conf and then set it in your YDL installation

A bit more elaborate: try to discover the horizontal and vertical
frequencies of your monitor and setup manually your xorg.conf.

[l'indien]

Post by Jack Malmostoso

Post by Paul Russell
I just installed YDL 4.0.1 on a G5 XServe and everything went reasonably
smoothly, except it's stuck on 640x480 resolution.

Quick'n'dirty: boot an Ubuntu livecd, copy somewhere the
/etc/X11/xorg.conf and then set it in your YDL installation
A bit more elaborate: try to discover the horizontal and vertical
frequencies of your monitor and setup manually your xorg.conf.

... which is quite easy.
In the Open-Firmware tree, you will find a file with the display EDID
blocs dumped.
find /proc/device-tree -name EDID will give you the file.
Then use a program to dump it (there a program named read-edid somewhere...)
and use the timings from the display prefered mode.
If you don't succeed, mail me the EDID file I'll post the result here.

[Paul Russell]

Post by l'indien

Post by Jack Malmostoso

Post by Paul Russell
I just installed YDL 4.0.1 on a G5 XServe and everything went reasonably
smoothly, except it's stuck on 640x480 resolution.

Quick'n'dirty: boot an Ubuntu livecd, copy somewhere the
/etc/X11/xorg.conf and then set it in your YDL installation
A bit more elaborate: try to discover the horizontal and vertical
frequencies of your monitor and setup manually your xorg.conf.

... which is quite easy.
In the Open-Firmware tree, you will find a file with the display EDID
blocs dumped.
find /proc/device-tree -name EDID will give you the file.
Then use a program to dump it (there a program named read-edid somewhere...)
and use the timings from the display prefered mode.
If you don't succeed, mail me the EDID file I'll post the result here.

Thanks for all the suggestions. Before trying any of them I tried the
4.0.91 beta and this seems to do the trick. It also fixes a number of
other problems, most notably with fan control on the G5 Xserve.

The only down-side now is that I can't install Y-HPC on top of the newer
YDL kernel. :-(

Paul

[iforone]

Post by Paul Russell
I just installed YDL 4.0.1 on a G5 XServe and everything went reasonably
smoothly, except it's stuck on 640x480 resolution. If I switch to the
monitor's native resolution (1280x1024) then X won't start up and I have
to restore /etc/X11/XF86Config to get things working again.
I could just about live with 640x480 if I had to, but I can't get at the
buttons on some of the windows in KDevelop, so I have to find a solution
for this.
Paul

hi;
I'm extremely new to linux - and may be way off base concerning a Mac,
but if once KDE is up, perhaps you can Open a Konsole (or K-menu | Run
) and type in;

kxconfig

please correct me if I'm mistaken, as I have an older PPC 7300/200 (OS
9.0.1) and I've hardly ever used Macs before -- I'm lurking to try and
decide whether or not to try load a YD distro onto it (or the correct
variant)