Re: X doesn't start with new xserver-xorg-video-intel
2016-12-05 17:40 GMT+01:00 Ben Hutchings <ben@decadent.org.uk>:
> On Mon, 2016-12-05 at 16:27 +0100, Alberto Gonzalez Iniesta wrote:
>> On Mon, Dec 05, 2016 at 03:23:24PM +0000, Ben Hutchings wrote:
>> > On Mon, 2016-12-05 at 11:25 +0100, Micha vor dem Berge wrote:
>> > > Hi all,
>> > >
>> > >
>> > > I recently upgraded my xserver-xorg-video-intel package to the newest
>> > > jessie-backports (version 2:2.99.917+git20161105-1~bpo8+1). After a
>> > > reboot, X doesn't start anymore.
>> >
>> > [...]
>> >
>> > The intel driver is obsolete for all but the oldest chips; you should
>> > use xserver-xorg-video-modesetting.
Yeah, but xserver-xorg-video-modesetting from jessie misses a lot of
features and (glamor) performance optimizations compared to the built-in
modesetting driver from stretch/sid.
>
> Actually that driver's part of xserver-xorg-core now, not its own
> package.
>
>> > (We should make this switch automatic on upgrade.)
>> >
We do this already. See
https://sources.debian.net/src/xorg-server/2:1.19.0-2/debian/xserver-xorg-core.NEWS/
and
https://sources.debian.net/src/xorg-server/2:1.19.0-2/debian/patches/06_use-intel-only-on-pre-gen4.diff/
>> > Ben.
>> >
>>
>> What happens to those that loose functionally[1] on that switch? Is it our
>> fate?
>
> No-one should lose functionality. We would change the X intel driver
> to not bind to devices that are handled by i915 on the kernel side. It
> would still bind to the devices that don't work with the X modesetting
> driver.
One would lose support for xbacklight. See
https://bugs.freedesktop.org/show_bug.cgi?id=96572
Andreas
>
>> [1] I'm not able to use my USB 3.1 VGA/HDMI adapter without
>> xorg-video-intel.
>
> Neither of the X drivers can set up any kind of output port; that's all
> handled by the kernel's i915 driver. So if one works and the other
> doesn't, it's almost certainly a bug rather than missing functionality.
> I.e. you should report this and expect it to get fixed quickly.
>
> Ben.
>
> --
> Ben Hutchings
> I'm always amazed by the number of people who take up solipsism because
> they heard someone else explain it. - E*Borg on alt.fan.pratchett
>
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