I install Linux from Scratch, so everything is compiled from source code. My dell laptop's video card is ati mobility radeon hd 5400 series (hardware information from Windows).
I know there are two Linux drivers, one is 'amd-driver-installer-catalyst-13.1-linux-x86.x86_64.zip' from AMD/ATI website, the other is 'xf86-video-ati-7.1.0.tar.bz2'.
My kernel is Linux 3.8.1, I have to start it with 'radeon.modeset=0', otherwise I will get kernel panic.
I tried both drivers one by one, every time I 'startx', the same error message:
[ 378.669] (EE) No drivers available.
Fatal server error:
[ 378.670] no screens found
[ 378.670] (EE)
Please consult the The X.Org Foundation support
according to http://wiki.x.org
, it seems to tell there is no proper video driver, with log
PCI:*(0:2:0:0) 1002:68e0:1028:0413 rev 0, Mem @ 0xd0000000/268435456, 0xcfee0000/131072, I/O @ 0x00002000/256, BIOS @ 0x????????/131072
it identifies video card OK, '1028:0413' tells it is dell subsystem with ati mobility radeon hd 5470.
And I tried X -configure, with log message:
Missing output drivers. Configuration failed.
But I also have kubuntu 12.10 installed, the XWindows starts properly every time. And 'lspci | grep VGA' shows
02:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Manhattan [Mobility Radeon HD 5400 Series]
it seems somehow ubuntu can recognize my video card properly.
I am running out of ideas, how can I start Xorg server?