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Bug 199133 - vesa(4) displays previous session briefly
vesa(4) displays previous session briefly
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: XFree86-Servers (Show other bugs)
All Linux
medium Severity medium
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Assigned To: X/OpenGL Maintenance List
David Lawrence
Depends On:
Blocks: 205361
  Show dependency treegraph
Reported: 2006-07-17 10:12 EDT by Sandeep K. Shandilya
Modified: 2007-11-30 17:07 EST (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2007-07-12 13:28:47 EDT
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Sandeep K. Shandilya 2006-07-17 10:12:46 EDT
Description of problem:

Starting X with low resolutions with the VESA driver causes the previous video
buffer to displayed momentarily. This could be a security issue. The user can
see what was on the previous X session.

Version-Release number of selected component (if applicable):
RHEL 3 update 6 i386

How reproducible:

Steps to Reproduce:
1.modify xorg.conf to use the VESA driver.
2.startx and run a few client apps
3.quit X windows
4.start X again
Actual results:
The screen displays content from the previous session.

Expected results:
The screen needs to be blank till GUI comes up.

Additional info:
This behaviour is not seen when the manufacturers driver is used.
Comment 1 Issue Tracker 2006-09-07 19:04:33 EDT
Need to clear X video buffers to prevent the retention of previous screen
session when starting new X session. Dell bug#199133 linked to IT.

Issue escalated to Support Engineering Group by: sbenjamin.
sbenjamin assigned to issue for Dell-Engineering.
Bugzilla id 199133 added to issue.
Category set to: X Windows
Internal Status set to 'Waiting on SEG'
Status set to: Waiting on Tech

This event sent from IssueTracker by sbenjamin 
 issue 100938
Comment 3 Charles Rose 2006-11-21 07:50:12 EST
Any update on this one?
Comment 5 John Feeney 2007-07-12 13:28:47 EDT
With RHEL3 now in maintenance mode, where only critical customer issues
can be fixed, this bugzilla has been closed as wont fix due to its severity
level and a lack of recent activity. 

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