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Bug 88053 - after executing ddcxinfo the computer slows the clock by a factor of 5
after executing ddcxinfo the computer slows the clock by a factor of 5
Product: Red Hat Linux
Classification: Retired
Component: kudzu (Show other bugs)
i586 Linux
medium Severity high
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Assigned To: Bill Nottingham
David Lawrence
Depends On:
  Show dependency treegraph
Reported: 2003-04-04 17:13 EST by Joakim Nordberg
Modified: 2014-03-16 22:35 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2005-03-29 15:56:59 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Joakim Nordberg 2003-04-04 17:13:05 EST
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021226

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 15:56:59 EST
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.

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