Red Hat Bugzilla – Bug 223881
No display generated by X server after installation
Last modified: 2007-11-30 17:11:53 EST
Description of problem:
Steps to Reproduce:
1.do an installation
Dell Dimension C521
Nvidia GeForce 6150LE
Dell 2007 LCD display
After installation, during boot, when the X server is activated by rhgb, no
display is generated. Instead the monitor displays an error message: "Out of
range signal. Cannot display this video mode. Change computer display input to
The boot display should have been displayed.
Created attachment 146237 [details]
/etc/X11/xorg.conf generated by anaconda. Note that the video driver is vesa.
Created attachment 146247 [details]
Output from lspci
Created attachment 146248 [details]
Output from lspci -n
Created attachment 146249 [details]
From my quick 30 second check on a machine with FC6 still installed, it looks
like 10DE:0241 was listed in /usr/share/hwdata/videoaliases/nv.xinf, but was
commented out. The same file has it uncommented on rawhide. This would mean
that FC6 anaconda/rhpxl/kudzu doesn't know what driver to assign for that
device, hence it picks vesa and that's what you get in the xorg.conf.
I'm sending this one over to the X driver guys for further comment.
I tried changing the video driver in /etc/X11/xorg.conf from vesa to nv. That
did produce a display, but it would only run at 800x600.
Do you have an X log from starting with nv? Would be interesting to know why
it's limited to 800x600.
Created attachment 146872 [details]
log when running with nv driver at 800x600
The monitor is a Dell 2007FP, which is capable of 1600x1200.
So, vesa should be working with this setup now.
The 800x600 limitation appears to be due to non-functional DDC. You will want
to set the HorizSync and VertRefresh values for your display in xorg.conf.
Please update to xorg-x11-drv-vesa 1.3.0-4 or later, and reopen if this is still
an issue for you.