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I'm using Ubuntu 11.04 64-bit version.
Tried compiling kernel 3.0.4 and used the 3.0 kernel from xorg-edgers and neither of them work. No display on screen although the system does seem to be loading. This is on the Asus K53TA-BBR6 laptop.
Haven't tried newer kernel versions since kernel.org is down.
On Fedora 15 64-bit with latest updates and 2.6.40 kernel, also not working.
2.6.38 kernel uses VESA for both distros.
I have this exact system, and i got it working on Sabayon linux 6.0. However, it is worth noting that I have it fully updated ( using catalyst 11.8 ) and that for the initial setup i used the vesa graphics drivers for initial setup. However, this should be working fine on this system after all updates are applied for the open source drivers.
I've got an A8-3850 that had a similar problem when it updated the Xorg Server under fedora (because I was too lazy at that point to put in the work to get Slackware running on it), So I went back and put slackware on it, and got it into a working position by blacklisting the radeon module and compiling the 3.0.4 kernel which it's running now, which works fine with fglrx.
I think the A-series is a bit too new for even Ubuntu 11.04. Try an 11.10 beta or the equivalent work-in-progress Fedora.
Updating the kernel gets you closer but you need to pick up new microcode as well. If you look in dmesg output you'll probably see messages along the lines of "can't find SUMO firmware"
Actually, it really has nothing to do with that. Linux 3.0 has a regression where VGA (including the laptop monitor) won't turn on after the initial splash screen. I know it applies to all Llano systems, and possibly others. I have the same laptop, it works fine out of the box with 2.6.38/Ubuntu 11.04 (except for needing Catalyst for 3d). It also works in 11.10 beta if I plug the HDMI port into a monitor before I turn the laptop on, and it even has 3d acceleration with the FOSS driver. I could then install the Catalyst driver using HDMI/monitor and (supposedly) have a working system, but I haven't tried it yet.
Last edited by nepwk; 09-22-2011, 10:03 PM.
I have the same board AMD a6-3400m with a Radeon ATI hd 6520.
I'm on Funtoo (based on gentoo) with the 3.1.0-rc4-git2 kernel, and masked versions of Xorg and video drivers, libdrm, libkms, mesa, ...).
I should clarify that I was talking about the open source drivers. Laptop works fine with fglrx in Ubuntu 11.04 and probably will in Ubuntu 11.10. The problem is that I can't even install ubuntu 11.10 using the desktop live dvd since it tries to use the open source drivers and no display comes up. Will try with beta 2 dvd that was released recently.
I took off the "d3d" use flag because of problem with the compilation of mesa. It wouldn't compile at all... And I didn't feeled I wanted to spend a week of my time on it.
Be carefull to set your kernel options as recommanded at : http://xorg.freedesktop.org/wiki/radeonBuildHowTo