Screen goes black during boot

LiranV · 2012-04-04 05:55:41

Ok guys I'm back trying to solve this.
So right now I have a working OS with GDM running on boot (only while using "nomodeset" in the kernel line - same as before).
I've logged blindly to the system while not using "nomodeset" (So my screen turned itself off during the boot process) and extracted dmesg log:
http://pastebin.com/dK0TXesn

Let's see, there are those settings that you should know about:
rc.conf modules/deamons:

MODULES=(radeon vboxdrv vboxnetflt)
# About the radeon I've tried to put this module there because I tought it might help, but I don't know if its necessary, so meanwhile i'll keep it there unless you tell me to remove it.

rc.conf deamons:
DAEMONS=(syslog-ng acpid dbus @network crond alsa @cupsd gdm)

I've also tried to add a file called 20-radeon.conf in /etc/X11/xorg.conf.d/
which looks like this:

Section "Device"
Identifier "Radeon"
Driver "radeon"
EndSection

Thats all. (This file is still there)

The last thing that you might need to know is that I don't have an "xorg.conf" file in /etc/X11/

I will be grateful if you guys can help me solve this.

Thanks.

ViruSzZ · 2012-04-04 08:28:20

To me your dmesg looks fine. So it seems your screen is blank (minimum light) but your arch is booting. Search somewhere in /sys/class/backlight/ for a file where you can set your screen brightness and once found set something like echo XX > /sys/class/backlight/acpi_video0/brightness (in my case as I actually had a similar issue when I bought my HP g62 a year ago) in your rc.local so your lights will power on at system startup.

As for the radeon, you can remove it from the modules array and instead add it to your mkinitcpio.conf and rebuild your initramfs. I think you don't need any xorg.conf but not sure as I actually don't have an ati card.

LiranV · 2012-04-04 09:12:30

ViruSzZ, My screen doesn't show blank, It's getting into standby - I know this because the screen LED starts blinking instead of just staying ON.

Gusar · 2012-04-04 09:45:32

ViruSzZ wrote:

To me your dmesg looks fine.

To me it doesn't. Let's play the "spot the error" game . Come on, try it, it's not that hard.

ViruSzZ · 2012-04-04 10:30:07

Gusar wrote:

ViruSzZ wrote:
To me your dmesg looks fine.
To me it doesn't. Let's play the "spot the error" game . Come on, try it, it's not that hard.

Hmm.. Firstly, this line:

[    0.000000] Kernel command line: root=/dev/sda1 ro vga=775

when using KMS the vga part needs to be removed? Am I right?

don't know if these lines are relevant

[    6.804643] [drm:atombios_dvo_setup] *ERROR* Unknown table version 2, 1

[    6.811094] drm: registered panic notifier

I really can't spot anything else wrong.

LiranV · 2012-04-05 13:35:50

This is the dmesg output without "vga=775" if it helps: http://pastebin.com/xD92zvwp
Anyone know what sould I do?

Last edited by LiranV (2012-04-05 13:36:01)

Gusar · 2012-04-05 14:06:54

ViruSzZ wrote:

when using KMS the vga part needs to be removed? Am I right?

Not strictly necessary. If you go through the log, you'll see that vesafb is started, but then later it gets unloaded and radeondrmfb takes over. So setting vga= means unnecessary work, but it doesn't hurt.

ViruSzZ wrote:

[    6.804643] [drm:atombios_dvo_setup] *ERROR* Unknown table version 2, 1

Ding, we have a winner! . That's exactly where the problem is. Atombios is responsible for modesetting.

LiranV wrote:

Anyone know what sould I do?

Report this to the radeon developers.

LiranV · 2012-04-05 14:13:30

Gusar, How you explain Ubuntu running with the same drivers and working ok?

Gusar · 2012-04-05 14:24:07

LiranV wrote:

Gusar, How you explain Ubuntu running with the same drivers and working ok?

Different kernel version?

ViruSzZ · 2012-04-06 13:21:04

Gusar wrote:

Ding, we have a winner! . That's exactly where the problem is. Atombios is responsible for modesetting.

I should read the lines more carefully next time... Thanks Gusar , I owe you a beer or two or even maybe three....

Last edited by ViruSzZ (2012-04-06 13:21:26)

LiranV · 2012-04-06 13:57:47

So this is a lost war?
I'll never have working drivers?

Gusar · 2012-04-06 14:08:58

Figure out which kernel versions work and which don't, then report to the radeon developers.

a1russell · 2012-04-12 15:55:16

Would you be so kind as to point me in the direction of their issue tracker?

(Edit) I think I found it: View Submit

Last edited by a1russell (2012-04-14 21:14:14)

LiranV · 2012-04-27 19:38:35

Just wanted you to know that now with kernel 3.3.3 out everything is working as it should.
Now I can happily use Arch

Thank you guys for helping!

Arch Linux

#26 2012-04-04 05:55:41

Re: Screen goes black during boot

#27 2012-04-04 08:28:20

Re: Screen goes black during boot

#28 2012-04-04 09:12:30

Re: Screen goes black during boot

#29 2012-04-04 09:45:32

Re: Screen goes black during boot

#30 2012-04-04 10:30:07

Re: Screen goes black during boot

#31 2012-04-05 13:35:50

Re: Screen goes black during boot

#32 2012-04-05 14:06:54

Re: Screen goes black during boot

#33 2012-04-05 14:13:30

Re: Screen goes black during boot

#34 2012-04-05 14:24:07

Re: Screen goes black during boot

#35 2012-04-06 13:21:04

Re: Screen goes black during boot

#36 2012-04-06 13:57:47

Re: Screen goes black during boot

#37 2012-04-06 14:08:58

Re: Screen goes black during boot

#38 2012-04-12 15:55:16

Re: Screen goes black during boot

#39 2012-04-27 19:38:35

Re: Screen goes black during boot

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