Red Hat Bugzilla – Bug 243152
monitor not automatically detected
Last modified: 2008-06-16 21:28:56 EDT
Description of problem:
My display monitor was not automatically detected during install or configuration
Version-Release number of selected component (if applicable):
f7test4 install, updated to f7
Steps to Reproduce:
1. New install; or run system-config-display
2. Hardware tab shows generic video monitor
Hardware tab shows generic video monitor
X configured for minimal resolution
Correct monitor detected
Hardware tab shows correct video monitor
X configuration has correct modes using full hardware capability
Monitor is DHP2818A; "D2818" in monitor list works perfectly.
# lspci|egrep -i 'vga|video|display'
01:00.0 VGA compatible controller: ATI Technologies Inc RV350 AR [Radeon 9600]
01:00.1 Display controller: ATI Technologies Inc RV350 AR [Radeon 9600] (Secondary)
This monitor was detected on this system under FC5.
Thanks for the bug report. We have reviewed the information you have provided
above, and there is some additional information we require that will be helpful
in our diagnosis of this issue.
Please attach your X server config file (/etc/X11/xorg.conf) and X server log
file (/var/log/Xorg.*.log) to the bug report as individual uncompressed file
attachments using the bugzilla file attachment link below.
Could you please also try to run without any /etc/X11/xorg.conf whatsoever and
let X11 autodetect your display and video card? Attach to this bug
/var/log/Xorg.0.log from this attempt as well, please.
We will review this issue again once you've had a chance to attach this information.
Thanks in advance.
Created attachment 156651 [details]
X server output, starting with no /etc/xorg.conf (** IGNORE THIS--SEE NEXT ATTACHMENT **)
First line is the command I used to start X
Created attachment 156653 [details]
X server output, starting with no /etc/xorg.conf
Sorry, the first attachment picked up xorg.conf from the current dir, but I
don't see how to delete it.
This one is really no config
Command to start X:
# xinit -- :1 >x.log.noconf 2>&1
Thanks for having a look at this issue.
I've attached an X server log run with no config file, do you still want the
I'm getting really confused between the process of creating xorg.conf and the
actual hardware detection in the X server.
If I run system-config-display with no existing xorg.conf, make no manual
selections and let it write an xorg.conf, then the correct monitor appears in
the output file. However, starting X with that config does not give either the
hardware-optimal set of modes, or the set of modes I want.
Only by running system-config-display and selecting a monitor (to get access to
resolutions > 800x600), then selecting 1280x1024 (the hardware-optimal
resolution) and exiting, can I get an xorg.conf that I can edit to remove the
(many!) modes I don't want.
So I don't know at this point which problem to pursue here.
These are just stdout from the X server, not the log file. Please attach
Created attachment 160347 [details]
Xorg server log
I don't seem to have a full set of server logs from that long back; maybe any
one will do. This one matches at least one of the manual starts I used to
generate the working setup.
There is a lot of value even in the later log files -- at least we get an idea
what Xorg thinks is your configuration and we get a lot of technical details
about your configuration.
the xorg log you provided shows a monitor being detected? is there a second
monitor not showing up?
Is the problem a) the screen is showing up too small or b) the name is wrong in
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