Red Hat Bugzilla – Bug 167336
Virtual desktop when incomplete DDC information is received.
Last modified: 2008-08-02 19:40:32 EDT
Description of problem:
This video problem was discovered by Dell and will be followed by an Issue
When RHEL3 U0 or U5 is installed video will show as virtual desktop for modes
above 640x480. The 1024x768 desktop is displayed via a 640x480 window which
can be "panned" up, down, left, right. This occurs when:
1. Video is provided via a Dell DRAC4 add in card using a Redeon 7000.
2. A monitor is attached which does not provide an EDID.
The panning occurs in spite of adequate values for Horizontal and Vertical
frequencies as shown in the /etc/X11/XF86Config file (attached).
ATI will solve this problem and will provide an updated .rpm to Dell for RHEL3
U0. This bugzilla must remain open to facilitate the Dell Issue tracker
(still coming) and the eventual repair of this problem upstream in RHEL3 U7 .
Created attachment 118359 [details]
XF86Config file from problem system.
Per phone call this morning between ATI, Dell and RH, this is a desktop problem.
Changing component to XFree86 and assigning Kevin Martin. Kevin and Bill
Nottingham were on the call along with Sammyy Benjamin and I this morning.
Dell has agreed to open an Issue Tracker for tracking and priority purposes.
I believe the monitor in this morning's call was described as "an old NEC
monitor". Yet the attached "XF86Config file" reports the monitor as a Dell P990
which I believe is a Sony Trinitron.
Rod (ATI), could you provide the specific monitor type that created the problem.
Since the problem occurred with or without a KVM box, it appears the box is
irrelevent to the problem encountered.
If ATI provides the patch they created to fix this problem, then devel [RH
Engineering] can review it and ACK as appropriate.
If there is a patch for this issue, please attach it to the bug so it can
be reviewed by Red Hat for consideration.
Mike, the patch in question has been applied successfuly to SLES 9 SP2 as
described here: https://bugzilla.novell.com/show_bug.cgi?id=151621
Also this patch is shown to work as part of our driver rpm built specifically
I will attach the patch shortly.
Created attachment 128567 [details]
Patch for XF86 window panning problem
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.