Red Hat Bugzilla – Bug 186689
ATI driver rejects any resolutions higher than 640x480
Last modified: 2007-11-30 17:11:28 EST
Description of problem:
Version-Release number of selected component (if applicable):
Set "ati" or "radeon" friver in xorg.conf.
Set any display resolution in xorg.conf.
X starts in 640x480 resolution an regardless resolution you specify in corg.conf.
Steps to Reproduce:
1. Set "ati" or "radeon" friver in xorg.conf.
2. Set any display resolution in xorg.conf.
3. run startx
X starts in 640x480 resolution an regardless resolution you specify in corg.conf
X reports warnings in log file: "hsync out of range" for ALL modes higher than
But my "HorizSync" parameter specified correctly in xorg.conf.
X should start in resolution you specify in xorg.conf
My card is ATI X700
I have the same bug with my ATI X800 XL card when i use radeon driver. I use FC5
with x86_64 architecture.
I can confirm that issue.
I have an AMD x2 3800+, 2048MB RAM, ATI X800GTO (PCI-E) and a DELL 2405FWP.
I am able to install FC5 in text mode but after starting X only the 640x480
resolution is possible and if I start under settings the "Display" the whole
Can you change the priority into "high"? I think this is a not a small issue, I
can't work with that crappy resolution.
I have a radeon 9100 and am seeing the same problem. I can take the xorg.conf
that is working just fine in my CentOS 4.3 partition and move it to /etc/X11/
and I still get 640x480 only.
Created attachment 128404 [details]
Xorg log file
Created attachment 128405 [details]
xorg config file
I have also seen this problem when attempting to install FC 5. Only the top
left corner (up to the bubbles) of the installation screen was visible. I had
to switch to text mode install.
Installing IA32 version with a PCIE Radeon X700 connected to a 1680x1050 LCD.
Created attachment 131168 [details]
Anaconda produced /tmp/Xconfig.test
Created attachment 131169 [details]
Created attachment 131170 [details]
lspci -vv output
It's been 3 months and plenty of people have submitted diagnostic info.
And those who have taken the time to report the bug and provide diagnostic info
have heard *zilch*. The bug has not even been assigned to an actual person.
This tell's me about as much about Fedora Core as I need to know.
(In reply to comment #11)
> It's been 3 months and plenty of people have submitted diagnostic info.
> And those who have taken the time to report the bug and provide diagnostic info
> have heard *zilch*. The bug has not even been assigned to an actual person.
> This tell's me about as much about Fedora Core as I need to know.
I have migrated to Ubuntu 6.06 and with this
[https://help.ubuntu.com/community/BinaryDriverHowto/ATI] instruction and an
additional [dpkg-reconfigure xserver-xorg] I could run my x1800XT without any
problem. Fedora seems to me like a big half-baked alpha testing project which
don't have any ambition to solve such problem because you should buy later redhat...
Does this problem still occur with X fully updated to rawhide, including
the server and ati driver?
This problem still occurs after a software update.
F.Y.I: The same problem exists in SUSE 10.1
This is, in fact, an upstream Radeon bug. It's detecting more devices attached
than there really are, and since clone mode is the default and it can't get DDC
info from the (unconnected) second display, it forces you to a range of
resolutions that are likely to be safe, which means 640x480.
Switching distros is unlikely to be an effective long-term solution, since
they'll just have this same problem when they upgrade to a sufficiently recent
I'm working on it though.
This should be fixed as of xorg-x11-drv-ati 6.6.2-2. Please test, and reopen if
this is still an issue for you.