Bug 88053

Summary: after executing ddcxinfo the computer slows the clock by a factor of 5
Product: [Retired] Red Hat Linux Reporter: Joakim Nordberg <joakim>
Component: kudzuAssignee: Bill Nottingham <notting>
Status: CLOSED DEFERRED QA Contact: David Lawrence <dkl>
Severity: high Docs Contact:
Priority: medium    
Version: 8.0CC: rvokal
Target Milestone: ---   
Target Release: ---   
Hardware: i586   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2005-03-29 20:56:59 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Joakim Nordberg 2003-04-04 22:13:05 UTC
From Bugzilla Helper:
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Description of problem:
I'm using a old machines IBM PC-300XL and HP Vectra with 233Mhz cpu and +192Mb ram.

When i run ddcxinfo to get the Modelines the computer still runs as it should
but I get som strange problems... The Clock goes slower, each computer second
takes 5-6 seconds i real...

root# time sleep 5
reports approx seconds but it takes 27 seconds in real to execute...

The computer has either Trio 64V2/DX card or ATI Rage 128

strange strange

Version-Release number of selected component (if applicable):
kudzu-vesa 0.99.66

How reproducible:

Steps to Reproduce:
1. Reboot computer
2.# sleep 5 (takes 5 seconds until prompt comes back)
3.# ddcxinfo (or svgamodes)
4.# sleep 5 (takes 27-28 seconds until prompt comes back)

Actual Results:  I get network timeouts, the computer drifts 5 minutes slower
every minute...

Expected Results:  None of above.
The svgamodes and ddcxinfo gives correct info tough.

Additional info:

Comment 1 Bill Nottingham 2005-03-29 20:56:59 UTC
Closing bugs on older, no longer supported, releases. Apologies for any lack of

This is a odd interaction between the real-mode DDC calls and your BIOS. It is
unlikely that it will be fixed at this time.