Originally Posted by ssenuta
I am using the kernel radeon video module with my AMD Series A-Series APU with Integrated Graphics AMD Radeon HD 6550D but my
screen flickers during the boot process. After the KDE Desktop is loaded, my video is fine. Does anyone know how to fix this?
NOTE: By flicker, I mean white bars appear on on the text console & black bars appear on the gui screen.
The only fix I can think of is to install an AMD catalyst priority driver that supports kernel-3.7.1 & my X.Org X Server 1.12.3
if & when they release a suitable new installer. However, the problem with using tha catalyst priority driver is it can stop
working without warning if you upgrade your kernel or Xorg server.
The amd-driver-installer-catalyst-12.10-x86.x86_64.zip worked for me with kernel-3.6.1 but it doesn't support kernel-3.7.1.
It also refused to work when I updated my xorg-x11-server-Xorg-1.12.3-2.fc17.x86_64 to xorg-x11-server-Xorg-1.12.4-1.fc17.x86_64.
Thank you for reading this post & I hope someone can offer a solution.
If you install the fglrx/nvidia driver downloaded from the net and AFTER that you upgrade xorg or the kernel, the driver WILL stop working.
Why? Because the installation procedure consists of:
1. Installing the kernel module that will load the driver components - this is done only for the current kernel by default.
2. Installing/replacing certain xorg components that are needed in order to make the link with the driver to enable its features.
So 1+2= any modification to xorg or installing a new kernel subsequent to the driver installation will mess up the driver.
Solution: reinstall the driver after any of the 1 or 2 modifications. Command line for reinstalling the fglrx driver is:
drivername= the install script with full path
NOTE: you need to have the headers installed for the kernel you are using.
P.S. This is true for both fglrx (AMD proprietary) and nvidia (nvidia proprietary) drivers if those are installed from the generic installation scripts available on their respective sites.
Certain distros include these drivers in their repositories and implement workarounds for issues 1 (adding the kernel module to the dkms tree) and 2 (doing some hokey-pokey with xorg's files via symlinks).