Comment 16 for bug 734756

Revision history for this message
Bryce Harrington (bryce) wrote : Re: [Bug 734756] Re: [Arrandale] Blank screen when booting with external monitor (x86_64)

On Thu, Apr 21, 2011 at 07:23:30AM -0000, feffemannen wrote:
> a. When I installed your patched driver and the laptop lid was _open_ it
> worked fine(!): I got the desktop showing on the external monitor as
> expected. The odd thing is that with the laptop lid closed I still get
> a blank external monitor...

Yeah it may not be a perfect fix; it forces dpms on in some
circumstances but others (such as lid events) aren't really handled by X
(one of the reasons why this functionality got moved to the kernel in
the first place) so there will be corner cases this X driver solution
can't handle.

Given that... I'm on the fence about whether to pursue using this fix in
the X driver or just leave the bug until the kernel team can get a real
fix. What is your opinion, given your view of the severity of the bug?

> b. I couldn't even boot with that kernel.

Bummer; well there are also some other new kernel snapshots at
http://kernel.ubuntu.com/~kernel-ppa/mainline/ you could try. The
2.6.39-rc*-natty ones are snapshots of the current mainline kernel from
Linus. The drm-intel-next and drm-next ones are the staging trees for
graphics changes that are queued to go to Linus shortly, so are more
experimental than the rc Linus kernels, but less experimental than
drm-intel-next-proposed.