[SOLVED] Monitor turns off!

[thomthom]

I am trying to install Fedora 17 but my monitor goes into power saving mode. I believe it has something to do with the nouveau driver con that's the last thing I see when removing "quiet" from boot options.

Intel quad-core q6700, Nvidia Ti 550

[george_toolan]

So what kind of monitor do you have exactly?

[thomthom]

Originally Posted by george_toolan

So what kind of monitor do you have exactly?

LG Flatron E2441

[Yora0]

When does it go into power saving mode?

[thomthom]

Originally Posted by Yora0

When does it go into power saving mode?

when it loads the nouveau driver

---------- Post added at 08:04 AM ---------- Previous post was at 08:03 AM ----------

the same thing happens with Ubuntu 12.04

[george_toolan]

Does anybody know if Fedora supports theses kernel parameters?

screen=1920x1080
hsync=83
vsync=60

norandr
noddc
vga=normal
nofb

[secipolla]

Originally Posted by george_toolan

Does anybody know if Fedora supports theses kernel parameters?

screen=1920x1080
hsync=83
vsync=60

norandr
noddc
vga=normal
nofb

I have an issue that my monitor (also a 17 '' CRT) gives an out-of-range screen (~20 to 29 Hz) when recovering from suspend and I have just black screen when recovering from hibernate.
If I suspend out of X (from a console) the monitor comes up in standby too.
I use the proprietary nvidia driver (ooold AGP GF6200) so it may be due to that.

Anyway, I have looked on kernel parameters to see if it helps in some way. Stock kernel parameters as I don't know if Fedora's kernel has any custom ones.

So the one regarding resolution/refresh rate is 'video='. For me it would be
video=1024x768@75e
(kernel-doc package has the instructions in kernel-parameters file which refers to other docs)
I haven't seen anything that would disable framebuffer and regarding vga modes (which, in my minimal knowledge of the subject looks like how many lines/columns are used) the suggestion is to use vga=ask

** Short intro for the impatient: Just use vga=ask for the first time,
** enter `scan' on the video mode prompt, pick the mode you want to use,
** remember its mode ID (the four-digit hexadecimal number) and then
** set the vga parameter to this number (converted to decimal first).

Nothing worked for me yet, though (didn't use the vga=ask).
Although it looks like an EDID issue, it seems it's something more directly related to the driver and I'm still to find a workaround for that (and I didn't remove nvidia for nouveau to test - although suspend works fine on the live-CD which uses nouveau; I may do it, but I may rather have this feature broken than use nouveau day in day out).

[george_toolan]

Does your BIOS have an option like "recall vga bios after suspend"?

[secipolla]

Originally Posted by george_toolan

Does your BIOS have an option like "recall vga bios after suspend"?

I don't think so (I'll check again but this BIOS isn't much fanciful). It has some suspend options for the monitor under its power settings but I suppose those are its built-in power manager.

pm-suspend/hibernate have some --quirks options. I have tried some of them with pm-suspend but always the monitor came up out-of-range (weird that it theoretically works from 30Hz onwards and it comes with 21-29 Hz). I haven't exhausted all of them, though.

What I find strange is that if it suspends/hibernates properly, then it should thaw properly too so I think that the driver (assuming it is the culprit; but it could be the kernel that doesn't 'ask' it properly too...) doesn't send proper info during the suspend/hibernate process so it doesn't come back up.

[thomthom]

Is there no fix for this problem?

[secipolla]

Although it's a different issue, http://fedoraproject.org/wiki/Common...nstallation.29 gives an option to turn off acceleration. Don't know if it gives any effect in your case.
Another thing is I read in another thread that it seems there an option to use the vesa driver for installation, maybe in the CD/DVD menu.
Then if you manage to install using the vesa driver and the problem is with nouveau you can try the proprietary driver afterwards.

[thomthom]

Originally Posted by secipolla

Although it's a different issue, http://fedoraproject.org/wiki/Common...nstallation.29 gives an option to turn off acceleration. Don't know if it gives any effect in your case.
Another thing is I read in another thread that it seems there an option to use the vesa driver for installation, maybe in the CD/DVD menu.
Then if you manage to install using the vesa driver and the problem is with nouveau you can try the proprietary driver afterwards.

The fix in the the thread you posted didn't work and I don't know how to enable the vesa driver with kernel parameters.

---------- Post added at 08:01 AM ---------- Previous post was at 07:21 AM ----------

I solved my issue. I had to use the "nomodeset" kernel parameter and everthing went fine after that.