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The free radeon driver requires non-free firmware that Debian does not install by default. Exactly how you do that depends on if you are running a released or development version of Debian, and if your hardware is not too cutting-edge for the ageing stable release.
You have to start giving more information, or we'll get tired of having to pry it out of you.
Are you running Debian Stable and upgraded to the backports kernel?
What AMD driver did you follow the guide to install--the proprietary fglrx-driver? If you try and install that with the 4.9 kernel, you received a build error in the installation someplace, since it requires a patched version to build on that, and another patch for any 4.10 kernels, and Debian doesn't have that in the repo (but I do ).
The free radeon driver with the backports kernel requires firmware from the backports repo to match it--specifically, firmware-amd-graphics.
When i install Debian Jessi 8.7 x64 KDE kernel version was 3.16, after i installed VGA as shown here: https://wiki.debian.org/AtiHowTo and it was ok.
After i did kernel upgrade as shown here: https://itsfoss.com/kernel-upgrade-debian/ with success but now when my system loads that FAILED titles appears as shown in above attached screenshots. After loads system everything is ok. only when loads there is not something good.
It's not the answers that matter, it's the questions.
And what is your problem with telling us plainly what release of Debian you are running and if you installed the free AMD driver or the proprietary driver? Don't put up a link to the wiki--just say which one! Please!
kepler19 wrote:Thanks for support, where should add it "apt-get update"?
stevepusser is talking about /etc/apt/sources.list which is a plain text file and has to be edited accordingly.
after that, run apt-get update in a terminal.
both actions require superuser privileges.
inxi -r
Resuming in non X mode: glxinfo not found. For package install advice run: inxi --recommends
Repos: Active apt sources in file: /etc/apt/sources.list
deb http://mirrors.kernel.org/debian/ jessie main
deb-src http://mirrors.kernel.org/debian/ jessie main
deb http://security.debian.org/ jessie/updates main
deb-src http://security.debian.org/ jessie/updates main
deb http://mirrors.kernel.org/debian/ jessie-updates main
deb-src http://mirrors.kernel.org/debian/ jessie-updates main
deb http://ftp.debian.org/debian/ stable main contrib non-free
deb http://security.debian.org/ stable/updates main contrib non-free
deb http://ftp.debian.org/debian/ stable-updates main contrib non-free
deb http://ftp.debian.org/debian jessie-backports main contrib non-free
deb http://mozilla.debian.net/ jessie-backports firefox-release
It's not the answers that matter, it's the questions.
By the way, currently "stable" and "jessie" are the same, so I think you have some duplicate lines in there. Users that leave "stable" in their sources accidentally when the next release becomes "stable" can get a surprise, uncontrolled, and frequently broken partial upgrade to the next Debian if they aren't careful.