Comment 16 for bug 404421

I first noticed it on a Samsung Q1 Ultra when trying to upgrade a Wubi
9.04 install to a 9.10 alpha. I figured the problem would be fixed by
the final release, but I am having this problem with a fresh Wubi 9.10
install. After usplash, the screen keeps flashing with

[drm:intelfb_restore] *ERROR* Failed to restore crtc configuration: -22

until inactivity makes the screen go blank.

I would like to apply the i915.modeset=0 workaround.

Can you please indicate how, and where to enter the workaround?

I tried pressing the <e> key in grub, and adding a new line with
"i915.modeset=0" and then using <Ctrl> + <x> key combination to boot,
but I'm still getting the problem, so apparently this does not cause
grub to pass the command to the kernel.

Can someone please tell me where I went wrong and what I should be doing
differently?

Many thanks,

Chris

Loïc Minier wrote:
> ** Tags added: regression-release
>
> ** Description changed:
>
> Updated the system to Ubuntu karmic (9.10), now XWindows will not start
> and I get the error:
>
> [drm:intelfb_restore] *ERROR* Failed to restore crtc configuration: -22
>
> Did a search for this error on google and I cannot find anything online
> to fix the problem.
> +
> + Workaround:
> + Add i915.modeset=0 to the kernel cmdline args
>
> ** Description changed:
>
> - Updated the system to Ubuntu karmic (9.10), now XWindows will not start
> - and I get the error:
> + With Ubuntu 9.10/karmic on Samsung Q1U which have a VGA output, Xorg
> + doesn't start:
>
> [drm:intelfb_restore] *ERROR* Failed to restore crtc configuration: -22
>
> - Did a search for this error on google and I cannot find anything online
> - to fix the problem.
> -
> Workaround:
> Add i915.modeset=0 to the kernel cmdline args
>
>