I was previously running 10.10 on my Acer Aspire laptop. It has Intel GMA 4500M integrated graphics and worked just fine. Great display, sharp, crisp, etc.
I decided to do a fresh install of 11.10 Oneiric and now am having problems. Originally I was getting the dreaded blank screen where the brightness was turned almost completely off. Some searching pulled up several easy fixes (editing GRUB).
Right now I am still having one issue. The screen resolution is stuck at a max of 1024×768 giving me a distorted screen.
Is there any way to fix this issue? I've Googled, searched Ask Ubuntu and also spent time on the forums looking for a solution. Thus far, nothing. Apparently, was and still is a concern in Natty?
Any help would be greatly appreciated.
Best Answer
I have an Intel GMA 4500. I Googled for answers but nothing seemed to solve my problem.
Finally I came across this that says for
acpi_osi=Linux
, the brightness meter works in reverse, which was why my display started with a blank screen i.e. since it is reverse, max brightness = blank screen.Following are a few interesting notes from the link:
Without
i915.modeset=0
the backlight does appear to start in the off position. HittingFn-brighter
once turns it back on. On my keyboard, brighter isFn-left-arrow
and dimmer isFn-right-arrow
, which is different than I usually see.Starting with kernel
modesetting
gets me a graphical console that works fine until X tries to start.X won't start with kernel
modesetting
, either automatically or from runlevel 3. X -configure fails. Withnomodeset
1024x768 is the only available resolution once logged in to a session. Of note, kdm comes up at the correct resolution withnomodese
t but once the X session starts it falls back to 1024x768.acpi_osi=Linux
is required for the back light keys to function. I see no lasting benefit to having turned it on and off as described in Comment #18 - still doesn't work with it off here.Same symptoms booting from the F15 DVD.
nomodeset
option works at reduced resolution, black screen with default graphical installer.So if your display starts with a blank screen, try decreasing the brightness to check if the screen appears. My display works fine now, but in reverse.