Bug#864166: release-notes: proofreading sweep - issues.dbk

[Niels Thykier <niels@thykier.net>]

Julien Cristau:
> On 06/05/2017 01:50 PM, Niels Thykier wrote:
>> Hi,
>>
>> CC'ing debian-x, who I hope can help us with some clarification.
>>
>>  [...]
> 
> This looks wrong, I believe the package name is gdm3, not gdm.
> 

Thanks, corrected.

> [...]
>>> Switching over to lightdm I can get a usable session without -legacy
>>> as long as I have -input-libinput.  So I'm afraid I have no idea
>>> what's going on, or even how many problems there are.
>>>
>>
>> As I understand it, lightdm will start X as root unconditionally, so
>> that will work with or without -legacy.  You want -legacy when using gdm
>> (or startx) plus have "old drivers".
>>
>>  * @debian-x: Is the above correct?
>>
> Yes, any reasonable (read: KMS) setup will work fine without -legacy.
> In the absence of KMS (e.g. virtualbox, or new hardware not supported by
> the drivers we ship), you'll need either -legacy or a DM that hasn't
> been updated to starting X as non-root yet.
> 
> Cheers,
> Julien
> 

Thanks for confirming.

I also noticed that the wiki has some points on this:
https://wiki.debian.org/NewInStretch

"""
Upgrade issues

  * For many Intel graphics chipsets, the Stretch X server will use the
    modeset driver instead of the intel driver. The modeset driver may
    require non-free firmware (firmware-misc-nonfree) to activate
    features, even on systems which did not use this firmware under
    Jessie.

  * For some older graphics chipsets, support has been relegated to
    "legacy drivers", which require the old setuid X server to run.
     Install xserver-xorg-legacy if you require one of these drivers.
"""

I believe the release-notes has the latter point, but not the former.  I
will add that now.

Thanks,
~Niels