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my laptop is R51
the graphic driver is 82855
In debian, I use the driver "i810"
I can't use the LCD and the extra AGP output at the same time. If I change the BIOS to BOOT from LCD, the extra AGP has no signal, if I change the BIOS to BOOT form the extra AGP, the LCD has no signal. I want to ask: if 82855 don't support the two output device work at the same time. And how can I set them in linux?
Firstly, please don't double post, and secondly, there should be a button on your laptop to switch between the two displays, this has always worked for me, which leads me to believe that if the button doesn't work for you, you may have the wrong driver, try using a different one. :)
thank you for your help!
yes, there is a key on my laptop to switch the two display.
But I just can't let the two displays to be active at the same time