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karim19841

03-28-2017 01:03 PM

black screen after boot sequence debian 8

Hi,
I've just installed debian 8.7.1 but when I try to boot everything go fine until it just freeze on a black screen with no sign of life.
It seems a problem with video drivers.
My video card is an ati sapphire 7850.
Thanks to who will help.

ondoho

03-29-2017 01:53 AM

2 options:

either:
- boot live, open a terminal
or:
- when you get to the black screen, press ctrl-alt-F2, login

...then enter

Code:

lspci -k | grep -iEA5 'vga|3d'

and post the output here, incl. the command itself.

karim19841

03-29-2017 07:41 AM

I used the shell from the installation cd:

Code:

lspci -k | grep -iE 'vga|3d'

The command line said that -A 5 option was invalid, I've tried also --after-context=5 but was the same. However,this is the output of the quoted command above.

Code:

01:00.0 VGA compatible controller: Advanced Micro Devices,Inc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850]

ondoho

03-29-2017 09:49 AM

Quote:

Originally Posted by karim19841 (Post 5689722)

The command line said that -A 5 option was invalid, I've tried also --after-context=5 but was the same. However,this is the output of the quoted command above.

that is very strange. are you sure you wrote '-iEA5' without any spaces? i'm giving out this command to many users for a long time now, and this is the first time someone says it doesn't work.
moreover, i'm using the same debian version and it works here.

anyhow, quick search:
https://duckduckgo.com/?q=linux+Radeon+HD+7850
2nd result:
https://ubuntuforums.org/showthread.php?t=2092425
(i didn't read it, but maybe it helps?)

karim19841

03-29-2017 11:44 AM

I've runned another live system (kali linux) and prompted in the root shell:

Code:

lspci -k | grep -iEA5 'vga|3d'

it worked completely.
the output was:

Code:

01:00.0 VGA compatible controller: Advanced Micro Devices, INc. [AMD/ATI] Pitcairn PRO [Radeon HD 7850 /R7 265 /R9 270 1024SP]

Subsystem: PC Partner Limited / Sapphire Technology Radeon HD 7850 2GB GDDR5 DVI-I/DVI-D/HDMI/DP

Kernel Driver in use: radeon

Kernel modules: radeon

01:00.1 Audio Device: Advanced Micro Devices,Inc. [AMD/ATI] Cape Verde/Pitcairn

Subsystem: PC Partner Limited / Sapphire Technology Cape Verde / Pitcairn HDMI Audio [Radeon HD 7700/7800 Serires]

The fact that kali worked in live and debian didn't make me think that Debian in version jessie got rid of some ati drivers packages,or not?

trumpforprez

04-05-2017 04:26 PM

Quote:

Originally Posted by karim19841 (Post 5689335)

You have installed Debian.
But Debian will not boot.

Why do you say there is a problem with video drivers?

When you try to boot Debian, is there an error message?

Where did you retrieve the Debian .iso image?
Did you do a sha256sum to make sure your .iso image was clean?

Why do you refer to Kali Linux?
Most people use Ubuntu or Linux Mint.

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