The last two logs are for my user session using modesetting driver and
with the video group and accel config removed. The first with the
session started via lightdm, the second started using gdm3.
On my system, /usr/sbin/gdm3 and gdm-session-worker runs as root, while
the rest of the GDM
** Attachment added: "Xorg log started from GDM"
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1632165/+attachment/4759706/+files/Xorg.0.log-gdm
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** Attachment added: "Xorg log with session started from lightdm"
https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/1632165/+attachment/4759705/+files/Xorg.0.log-lightdm
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you please test #2? Just tap the Super key to open the Unity7
> dash.
> Is it translucent or solid coloured?
>
> Also, failure to set correct permissions for /dev/dri/* I think is
> lightdm's problem. So adding lightdm here.
Ah, apologies, this is on Ubuntu GNOME, so I'm runni
A few more points about this. When I first stated looking into this, I
found Xorg reporting a few things:
- No access to /dev/fb0 (since I wasn't in the video group)
- Acceleration seemed to be disabled
However after adding myself to the video group (for access to the FB and
DRI devices), and
Public bug reported:
After upgrading to Yakkey, I found the graphics performance of my
MacBookPro12,1 (13", 2015, retina/hidpi display) became unbearably slow
- switching workspaces, playing games, even just scrolling web browser
tabs was visibly slower. The computer became constantly warm, and
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