hey i cant change brightness and it goes to sleep when i close the lid

I have a sony sve15116end with a radeon graphic card.I installed 12.1 kde recently.When i close the lid it goes to sleep and when i open it again i get a blank screen and when i move the mouse there are 3 cursors moving and nothing else on the screen.Please help.

and i tried using power profiles to change it…it didn’t work…no one knows what could be wrong??or is it a silly question???

On 09/30/2012 08:26 PM, kushalm9203 wrote:
>
> and i tried using power profiles to change it…it didn’t work…no one
> knows what could be wrong??or is it a silly question???

i think your three symptoms (won’t wake up right, can’t adjust screen
brightness, and three cursors) stem from two different problems needing
three different fixes:

  1. i think the lid closing/wake up problem is caused by your acpi
    settings…to try to fix that, shut down all your applications and
    reboot, at the first green screen, press the down arrow and then type in
    only the first of the below two commands…and, what you type will fall
    into the Boot Options line on the green screen, then press enter and the
    boot will continue…

acpi_osi=Linux
acpi_backlight=vendor

then, after the system is fully booted up see if your machine goes to
sleep right, and wakes up right…hmmmmm! when i open my lid after
sleep i too get a blank screen (because the screen is OFF) until i
press the space bar, any key or maybe a momentary (less than one second)
on the power button–that is to say that on my machine, the screen
REALLY sleeps through the lid being opened and i have to push a button
to tell the whole machine to wake up…i consider that normal.

  1. the screen brightness problem might be solved by adding the second
    command to the green screen’s “Boot Options” line…now if the first
    line helped with the lid then, just go ahead and use BOTH lines and see
    how it goes…it may fix both problems, it might not…

if those two things (or only one) work for you then we/someone can tell
you how to make it happen for every boot–so you don’t have to type it
each time…

  1. if the three cursor thing you described only happens after the lid
    is closed and opened, then the above will probably cure that problem
    also…but if it happens all the time, or a lot, then you will probably
    need to install the proprietary driver for your graphics card…lets
    wait on that until we see if the acpi tuning helps…


dd http://tinyurl.com/DD-Caveat

When I selected ‘Do Nothing’ under Power Saving in the Power profiles it worked…It didn’t go to sleep when i closed the lid…But when I put it to sleep and then press the power button I get a Black screen…I mean the backlight is on and its black and when i move the mouse i get just 3 cursors…its still black…I tried the 2 commands…they didn’t work…Please Help

On 10/02/2012 12:16 PM, kushalm9203 wrote:
> Please Help

i can’t help more–have never heard of that black screen and three
cursor symptom after sleeping…

how about this as a work around: when you want to close the lid go for a
walk, use the buttons and select Leave > Turn off Computer…

sure, it will take a little longer, but that works…

or maybe you just need a newer kernel…

and consider joining a Sony forum where folks using Linux hang
out…surely you are not the only Sony owner with this problem (if you
are, maybe you just need to switch to Linux distribution which does work
with your hardware…


dd
http://tinyurl.com/DD-Caveat
http://tinyurl.com/DD-Hardware
http://tinyurl.com/DD-Software

I also get a black screen on waking from sleep, though I only get one cursor. My work around is to make sure I close all running programs before putting the laptop to sleep, and then on wake, I restart Xorg using CTRL+ALT+BACKSPACE. I get dumped to the login screen (which is why I closed everything). I can then log in normally and use the system. Any subsequent sleep cycle does not require restarting Xorg.

This has been happening since the kernel was pushed to the 3.2 series. My online searches have lead me to believe it is from the radeon driver, but it also seems like nVidia and Intel and even the ATI driver have or had this problem. Obviously, though, something else must also trigger it or my searches wouldn’t have been as fruitless as they have been (read, there would be people screaming bloody murder over something like this happening). Anywho, one bug I found (and have lost out of frustration) seemed to indicate that it’s been fixed in the newest radeon driver, which I don’t believe will probably make it into 12.2.

So, I guess give my workaround a shot and see if that at least gets you back to a working screen after the first sleep/resume. Like I said, you only need to do it once between reboots, all the other sleep/resume cycles seem to work fine thereafter.

Good luck.