Bug 2643 - Using MergedFB results in garbled display
Summary: Using MergedFB results in garbled display
Status: RESOLVED FIXED
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 6.8.2
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: Xorg Project Team
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-03-02 23:34 UTC by Michael Grigoriev
Modified: 2005-03-04 13:44 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
Excerpt from the log (14.80 KB, text/plain)
2005-03-02 23:36 UTC, Michael Grigoriev
no flags Details

Description Michael Grigoriev 2005-03-02 23:34:21 UTC
Problem: when running X with MergedFB enabled, closing and reopening the lid
results in garbled image - heavy flickering, shifting and ghosting. Switching to
a console, closing and reopening the lid fixes the problem, until the next time
the lid is closed with the X running. This only happens with MergedFB enabled.

Software:
Gentoo
Linux 2.6.10
X.org 6.8.2

Hardware:
HP zt3000
ATI Technologies Inc Radeon R250 Lf [Radeon Mobility 9000 M9] (rev 01)

Configuration:
The driver paramers are at default except for:

        Option      "MergedFB"                  "true"
        Option      "CRT2Position"              "Clone"
        Option      "MetaModes"                 "800x600"
        Option      "CRT2HSync"                 "30-60"
        Option      "CRT2VRefresh"              "50-85" 
        Option      "MonitorLayout"             "LVDS, CRT"

A relevant portion of the log when starting X in this configuration is attached.
Please let me know if you require any further details.

Thanks in advance,
Michael.
Comment 1 Michael Grigoriev 2005-03-02 23:36:17 UTC
Created attachment 2010 [details]
Excerpt from the log
Comment 2 Alex Deucher 2005-03-03 07:18:32 UTC
Are you using ACPI and a HP specific acpi module?  I think the bios is doing
something behind the drivers back.  Can you try xorg from cvs with the
"BIOSHotkeys" option set to true?  this may be related to bug 2000. 
Unfortunately, I don't know what the bitfields in the BIOS scratch regs mean.
Comment 3 Michael Grigoriev 2005-03-03 10:57:28 UTC
Hi, Alex,
Thanks for a quick reply.
I am indeed using ACPI, but not anything HP specific.
Will try CVS version in the next couple of days and report back.

Comment 4 Michael Grigoriev 2005-03-04 22:19:26 UTC
So it would seem that Gentoo's got the BIOS hotkeys patch by default, and it
does not make a difference, when enabled. However, I did try the CVS version
anyway, and it looked like it was working fine!
That's good news, I guess, but do you have any idea what other fixes this might
be related to?
I would kind of like to patch my current version rather than upgrading to CVS.

Thanks again.
Comment 5 Alex Deucher 2005-03-05 08:44:10 UTC
I don't know off hand.  it could be that gentoo's version has some combination
of patches that causes a problem.


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