View unanswered posts | View active topics It is currently Mon Jul 22, 2019 10:12 am



Reply to topic  [ 7 posts ] 
 Lost DVI signal following OS selection (Grub) 
Author Message

Joined: Thu Jan 09, 2014 2:16 pm
Posts: 5
Post Lost DVI signal following OS selection (Grub)
Hello,

Following a HDD crash, I have changed the device in my Fit-PC2. I have installed Ubuntu server 12.04 LTS on the new HDD from a usb-live. Nothing strange during the setup but when I reboot the computer I can not access to the prompt. The signal video is lost just after the OS Selection on grub.

Do you have any suggestion?


Last edited by Yoshï on Sat Jan 24, 2015 12:03 pm, edited 1 time in total.



Mon Jan 19, 2015 11:58 pm
Profile

Joined: Thu Jan 09, 2014 2:16 pm
Posts: 5
Post Re: Lost DVI signal following OS selection (Grub)
In the file /var/log/syslog, I have the following lines:
Code:
gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
gma500 0000:00:02.0: LVDS-1: EDID block 0 invalid.
gma500 0000:00:02.0: Backlight lvds set brightness 7a120000
[drm] Initialized gma500 1.0.0 2011-06-06 for 0000:00:02.0 on minor 0
gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
gma500 0000:00:02.0: trying to get vblank count for disabled pipe 1
gma500 0000:00:02.0: LVDS-1: EDID block 0 invalid.


What does it mean? Is it normal?


Sat Jan 24, 2015 12:03 pm
Profile
Post Re: Lost DVI signal following OS selection (Grub)
I've forwarded this to a linux expert.
Do you still cannot get video output or you have managed with this issue?


Mon Feb 02, 2015 12:04 pm

Joined: Sun Apr 26, 2009 3:24 pm
Posts: 298
Post Re: Lost DVI signal following OS selection (Grub)
Hi,
Try to install recent Ubuntu Server 14.04 http://www.ubuntu.com/download/server

_________________
Compulab's Linux support


Mon Feb 02, 2015 2:14 pm
Profile

Joined: Thu Jan 09, 2014 2:16 pm
Posts: 5
Post Re: Lost DVI signal following OS selection (Grub)
Hello,

Thanks for your help.

@mbirger:
Unfortunately, I did not find a solution. Could you tell me if your linux expert has an idea about the problem according to the messages in the syslog?

@ Denis:
I have installed Ubuntu Server 14.04 LTS and I still have the same problem:
I lost the video signal after GRUB


Tue Feb 03, 2015 9:44 am
Profile
Post Re: Lost DVI signal following OS selection (Grub)
following up again


Thu Feb 12, 2015 8:29 am

Joined: Sun Apr 26, 2009 3:24 pm
Posts: 298
Post Re: Lost DVI signal following OS selection (Grub)
Hi,
- Try to blacklist gma500 video driver: add "modprobe.blacklist=gma500_gfx,drm,ttm,drm_kms_helper" to the kernel boot line
- Try with another display

_________________
Compulab's Linux support


Thu Feb 12, 2015 8:40 am
Profile
Display posts from previous:  Sort by  
Reply to topic   [ 7 posts ] 

Who is online

Users browsing this forum: No registered users and 0 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by STSoftware for PTF.