Bug 443324

Created attachment 303063 [details]
A camera shot that shows how badly my monitor work with unsupported resolutions.

Created attachment 303064 [details]
Screen capture of the default settings.

Here you have the default settings chosen by Fedora 9 Preview. I haven't
changed anything before that screenshot.

Created attachment 303065 [details]
Xorg.0.log

As you can see 1600x1024 isn't in the list of resolutions supported by the
monitor.

In case you need it, here you are original specs of the monitor:
http://www.rim2000.com/prod_desc/philips/2002/109p20.pdf

where are you seeing the 1600x1024?

from the log file we are setting at 1600x1200 mode on the monitor which it
recommends to us..

1600x1200 would be ok, but the actual output isn't in 1600x1200 because I
sometimes use it in other distros but it doesn't causes that (worrying) distortions.

Line 660 and 661 of the Xorg.0.log:
"(II) RADEON(0): Output VGA-0 using initial mode 1600x1024
after xf86InitialConfiguration"

However both system-config-display and gnome-display-properties list a lot of
unsupported resolutions (for example also 1680x1050).

I took some time to test to figure out where the problem is.
I tested the system with 2 different distros (Ubuntu 8.04 and Fedora 9 
Preview) and 2 different video cards (Radeon 9500 - radeon driver - and 
GeForce MX 400 - nv driver).

I tested Ubuntu just because it was the only distro with XOrg 7.3 I had with 
me.

Results:

Ubuntu 8.04 - radeon - 1280x1024 @ 85Hz (really good choice)
Fedora 9 preview - radeon - 1600x1024 @ 60Hz (really bad, totally broken)
Ubuntu 8.04 - nv - 1600x1200 @ 60Hz (not a wonderful choice, but however 
perfectly working)
Fedora 9 preview - nv - 1600x1200 @ 60Hz (same as before)

So my guess is that there is something wrong in the latest radeon driver.

I'm going to attach XOrg 7.3 log from Ubuntu 8.04 with radeon for comparison. 
In case you need it I can also do a test with Fedora 8.

Created attachment 304009 [details]
Xorg.0.log from Ubuntu 8.04 / Xorg 7.3

Packages versions:
xorg (1:7.3+10ubuntu10)
xserver-xorg-video-ati (1:6.8.0-1)

Uh... I just noticed both Ubuntu 8.04 and Fedora 9 Preview use ati-6.8.0.
Don't know what it could be then...

Created attachment 304229 [details]
Xorg.0.log for ATI Radeon X800 and HP A4576A

Same problem here: without a suitable xorg.conf file, X defaults to a
resolution
of 1920x1080 stretching beyond the borders of my CRT, a 21" HP A4576A connected

to an ATI Radeon X800 via the VGA connector. The system is a fully updated
"rawhide" one. Interestingly, '/usr/sbin/monitor-probe-using-X radeon' returns:


after xf86InitialConfiguration
EISA ID: HWP11e0
Screen size: 40.0 cm x 30.0 cm (19.69 inches, aspect ratio 4/3 = 1.33)
Gamma: 2.5
Analog signal
Max video bandwidth: 230 MHz

	HorizSync 30-107
	VertRefresh 48-160

	# Monitor preferred modeline (73.7 Hz vsync, 80.0 kHz hsync, ratio 5/4)

	ModeLine "1280x1024" 135 1280 1344 1536 1688 1024 1027 1030 1085 -hsync

	-vsync

which is not perfect either: for a 21" CRT with an aspect ration of 4/3, the
optimum resolution is 1400x1050, and this is what I usually add to my xorg.conf

which is the reason why I cannot live without it.

PS: Could anybody correct the spelling of 'seperate' in this infamous phrase
'We only handle seperate sync.' written to Xorg.0.log in the Xorg git tree?
Thanks!

Diego can you remove the monitor section from your xorg.conf file? it seems to
be confusing things and limiting the modes. do that and post a new xorg log file
if it doesn't work.

Joachim, you have a monitor that is flexible with the truth, it doesn't claim a
preferred mode from the looks of it. It does detail 1280x1024 so this is the
only thing we can autoconfig on it I need to add a quirk in the server to choose
the first mode as preferred.

/usr/sbin/monitor-probe-using-X returns a preferred mode line with
"1280x1024" which is what already earlier Xorg releases fell back
to. If Xorg can be made to choose again that one, then this is ok
with me, as I complained about picking 1920x1080@60Hz [which is far
from anything reaonable] in the first place.

> Diego can you remove the monitor section from your xorg.conf file?
> it seems to be confusing things and limiting the modes.

I'm really sorry but... well... it does not have a monitor section at all.

I attach you my (working) xorg.conf (I think system-config-display has created
it when I set a supported resolution from it).

I also tried updating the system as of today and removing the old xorg.conf and
the result is:
- no new xorg.conf is generated in /etc/X11/;
- it still starts in 1600x1024.

Created attachment 304686 [details]
Working xorg.conf

Changing version to '9' as part of upcoming Fedora 9 GA.
More information and reason for this action is here:
http://fedoraproject.org/wiki/BugZappers/HouseKeeping

This seems to be fixed now. I have done all the updates as of today and manually
installed xorg-x11-drv-ati 6.8.0.18.fc9 from koji's rpm and the problem is gone.
Now it starts correctly in 1600x1200@85Hz.

However I don't know if it's gone because of the updates or because of the new
driver.

Created attachment 311090 [details]
Xorg.0.log with the bug fixed.

In the line #670 you can see that now X selects a valid resolution for my
monitor:

(II) RADEON(0): Output VGA-0 using initial mode 1600x1200

Thanks for letting us know.