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I have an Acer Aspire 5920 Laptop that I am messing around with Arch on. I'm going throught the install guide and have gotten to installing X. My problem is that when I use the 'intel' driver the backlight turns off and does not come back on. I can only see the screen if I point a light at it to catch the light on the way back out. When I stop X to get back to the console the backlight does not come back on. The backlight does work when I use the vesa driver. The backlight is not just set low, it is off. I have messed with the setting deep in /proc that manually sets it. The keys to set the backlight work in the console before I attempt starting X.
I am using the xorg.conf generated by "hwd -xa" at the moment, but I have fiddled with it a bunch, including that page in the wiki and other confs that I have found online.
The graphics is the integrated x3100 by intel.
Whatever else is needed I can try to get.
Also, doing this on Arch64.
I have had some previous experience with linux. I had Gentoo running on an older laptop just fine. I like the way the computers at my Uni are set up. They have Suse on them, but are pretty heavily modified from what I can tell.
Edit: Perhaps I should ask in the Laptop forum? (Can anyone give me suggestions for what I should be asking?)
Last edited by bauerm (2008-02-18 21:23:48)
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Updating this...
I've had luck with using
"vbetool dpms off"
which totally kills the screen so that nothing is showing
followed by
"vbetool dpms on"
which turns everything back on, *including* the backlight, which is good.
A way to do this automatically when starting x would be helpful, and what would be better is knowing why this happens, so I can try to fix it. At this point I know not where I should even start with the second thing, but I am sure a few lines into the right script would help the first problem.
Any questions or comments would be much appreciated, as I have never posted on a forum before.
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I have the same issue on my acer travelmate c111: Arch boots up, X starts - black screen. Somehow I discovered that I can bring back the backlight using the brightness up/down buttons so I wrote the following lines to a script which is put to gnome session autostart:
xbacklight -set 50
xbacklight -set 0I do not know why but somehow I need both of those lines for the workaround.
00:01.0 PCI bridge: Intel Corporation 82852/82855 GM/GME/PM/GMV Processor to AGP Controller (rev 02)
00:02.0 VGA compatible controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)
00:02.1 Display controller: Intel Corporation 82852/855GM Integrated Graphics Device (rev 02)Does anyone know the reason for switching off the lights at startup?
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