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List:       freedesktop-xorg
Subject:    ati driver + xrandr can't activate external monitor
From:       charlie <charlie.xia.fdu () gmail ! com>
Date:       2008-04-25 23:51:24
Message-ID: 11c6cf4e0804251651l6b503437re2e54d35de16cee2 () mail ! gmail ! com
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Hello,

I am using Debian Sid on an ATI Radeon IGP 350M based laptop, with a 19' LCD
monitor.
When the external LCD connected, X can be started and shown on the LVDS(or
the Laptop panel),
'xrandr -q' shows LVDS and VGA-0 are connected and modes properly probed.
However, after the attempt to bring on the external monitor by 'xrandr
--ouput VGA-0 --auto',
the external monitor remains black and has no signal input. Meanwhile the
output of
'xrandr -q' does change with the VGA-0 monitor indicated as been activated
and in preferred mode '1280x1024+0+0'

I googled a lot and tried different approach to hack my way through, however
in vail.
So I can only ask for help here.
the detail of my problem is raised as a bug in bugzilla:
https://bugs.freedesktop.org/show_bug.cgi?id=15708

TIA for any advice

Chalie

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Hello,<br><br>I am using Debian Sid on an ATI Radeon IGP 350M based laptop, with a \
19&#39; LCD monitor.<br>When the external LCD connected, X can be started and shown \
on the LVDS(or the Laptop panel),<br>&#39;xrandr -q&#39; shows LVDS and VGA-0 are \
connected and modes properly probed.<br> However, after the attempt to bring on the \
external monitor by &#39;xrandr --ouput VGA-0 --auto&#39;,<br>the external monitor \
remains black and has no signal input. Meanwhile the output of <br>&#39;xrandr \
-q&#39; does change with the VGA-0 monitor indicated as been activated and in \
preferred mode &#39;1280x1024+0+0&#39;<br> <br>I googled a lot and tried different \
approach to hack my way through, however in vail.<br>So I can only ask for help \
here.<br>the detail of my problem is raised as a bug in bugzilla:<br><a \
href="https://bugs.freedesktop.org/show_bug.cgi?id=15708" \
target="_blank">https://bugs.freedesktop.org/show_bug.cgi?id=15708</a><br> <br>TIA \
for any advice<br><br>Chalie<br>



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