Bug 6885 - radeon driver does not recognize DVI monitor in docking station
Summary: radeon driver does not recognize DVI monitor in docking station
Status: RESOLVED DUPLICATE of bug 3621
Alias: None
Product: xorg
Classification: Unclassified
Component: Driver/Radeon (show other bugs)
Version: 6.9.0
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: Xorg Project Team
QA Contact:
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-05-10 17:06 UTC by Eric L.
Modified: 2006-05-12 14:26 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Attachments
The original xorg.conf (without MonitorLayout) (3.27 KB, text/plain)
2006-05-10 17:07 UTC, Eric L.
no flags Details
The xorg.conf with MonitorLayout set to TMDS (3.27 KB, text/plain)
2006-05-10 17:07 UTC, Eric L.
no flags Details
Working config without Layout and Laptop being standalone (40.18 KB, text/plain)
2006-05-10 17:08 UTC, Eric L.
no flags Details
Working config with TMDS Layout and Laptop being docked (48.42 KB, text/plain)
2006-05-10 17:09 UTC, Eric L.
no flags Details
Non-working config without Layout but Laptop being docked (39.91 KB, text/plain)
2006-05-10 17:09 UTC, Eric L.
no flags Details

Description Eric L. 2006-05-10 17:06:22 UTC
Hello,

I have an nc6000 HP laptop with Radeon card, as well as a docking
station with DVI port, with a flat screen attached to it.

Before upgrading to xorg from xfree86 (i.e. Debian Sarge to Etch), I was able to
have one configuration and the xserver would
do the right thing:
- laptop standalone: 1024x768 on the internal display.
- laptop in docking station: 1280x1024 on external screen.
(I'm *not* trying to have something fancy like dual screen!)

Now, I need to have two configurations: the old one (xorg.conf_NoLayout) when
undocked, and a new one with MonitorLayout set to TMDS (xorg.conf_TMDSLayout)
when docked. It of course makes me the laugh of all my (Windows) colleagues.

And if I use the wrong configuration file, I get the following behavior:
- laptop standalone: internal display shows completely garbled picture,
  looks like wrong sync parameters; I suspect trying to represent
  1280x1024 on a display with 1024x768.
- laptop docked: the external screen doesn't show anything. I suspect
  it's running on the internal screen.
In both cases, the xserver doesn't notice anything strange and runs
happily.

I would really like to be able to run with only one configuration, without need
to switch anything manually.

Thanks, Eric
Comment 1 Eric L. 2006-05-10 17:07:29 UTC
Created attachment 5593 [details]
The original xorg.conf (without MonitorLayout)
Comment 2 Eric L. 2006-05-10 17:07:53 UTC
Created attachment 5594 [details]
The xorg.conf with MonitorLayout set to TMDS
Comment 3 Eric L. 2006-05-10 17:08:32 UTC
Created attachment 5595 [details]
Working config without Layout and Laptop being standalone
Comment 4 Eric L. 2006-05-10 17:09:02 UTC
Created attachment 5596 [details]
Working config with TMDS Layout and Laptop being docked
Comment 5 Eric L. 2006-05-10 17:09:40 UTC
Created attachment 5597 [details]
Non-working config without Layout but Laptop being docked
Comment 6 Benjamin Herrenschmidt 2006-05-10 18:15:46 UTC
I'd say it smells a lot like the known issues of laptops & primary TMDS. One
thing you can try to make your windows friends a bit more silent until those
issues are solved is the kind of hacks (hooked to a hotkey) that is described on 

http://ozlabs.org/~jk/docs/mergefb/
Comment 7 Alex Deucher 2006-05-13 07:26:26 UTC

*** This bug has been marked as a duplicate of 3621 ***


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