radeon kernel modules blanks console terminals.

page_seven · 09-08-2010, 01:07 PM

hello. When I load the radeon module, from initscripts, the commandline, or when Xorg loads it, it makes all my consoles go blank. They are still active I can type into them then cat /dev/vcs* from X, and I see what I typed. I am using vga16fb as my framebuffer console driver, and am on PowerPC so I don't think I can use plain VGA consoles.

this is my /etc/modprobe.d/video.conf

Code:

install radeon /sbin/modprobe --ignore-install radeon modeset=1 tv=0

lspci | grep -i radeon

Code:

0000:04:00.0 VGA compatible controller: ATI Technologies Inc RV380 0x3e50 [Radeon X600]

adamk75 · 09-08-2010, 07:32 PM

radeon KMS (which you are enabling with modeset=1) provides it's own framebuffer device. Make sure that FRAMEBUFFER_CONSOLE and CONFIG_FB are enabled in your kernel config, but that no low-level framebuffer drivers are selected.

page_seven · 09-09-2010, 12:15 PM

what about "Lowlevel video output switch controls"?. I have to use Open Firmware framebuffer support or linux never loads.

page_seven · 09-09-2010, 12:52 PM

I built radeon in, and added radeon.modeset=1 to yaboot.conf. thank you, X is working properly now. But I am stuck with Open Firmware framebuffer.
dmesg | grep -i radeondrmfb

Code:

fb: conflicting fb hw usage radeondrmfb vs OFfb ATY,Aphrod - removing generic driver
fb: conflicting fb hw usage radeondrmfb vs OFfb ATY,Aphrod - removing generic driver
fb0: radeondrmfb frame buffer device

adamk75 · 09-09-2010, 08:03 PM

Based on your dmesg output, as soon as the radeon kernel module kicks in, it takes over the framebuffer device from OFfb.

page_seven · 09-09-2010, 08:51 PM

is there any way to speed it up?

adamk75 · 09-09-2010, 08:58 PM

The radeon DRM framebuffer is unaccelerated. I have no idea if there are plans to change that, though.

Adam

page_seven · 09-09-2010, 09:05 PM

Ok. Thanks