@Alberto Milone: The only reason for my previous comment is to highlight
the importance of this bug.
I had exactly the same problem as 'Alistair Buxton':
How many cards? 1
The number of cards has changed! <-- No it hasn't.
Has the system changed? Yes <-- Wrong
/etc/X11/xorg.conf was
@Alistair: the system didn't really change in your case. It's just that
when you first run gpu-manager, it will have no records on any previous
runs (comparing "last cards number = 0" with "How many cards? 1"), so it
will try to configure your system. It should only happen the first time,
unless
It is ridiculous that this bug doesn't have the highest priority.
Imagine an inexperienced user that, after an update, finds its system
unusable.
This is my /var/log/gpu-manager.log now:
Disabled by kernel parameter "nogpumanager"
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Happens to me too on HP Zbook 15 with (Nvidia/Intel) only Nvidia active.
Disabled intel card in bios.
Workaround:
Add nogpumanager to GRUB_CMDLINE_LINUX_DEFAULT in /etc/default/grub and
execute update-grub to disable gpu-manger.
/var/log/gpu-manager.log
log_file: /var/log/gpu-manager.log
This started happening to me when I upgraded to 15.04 (from 14.04
stepping through 14.10). After several deletions (seemed like every
update or every couple boots), I ended up disabling the gpu-manager
service and making xorg.conf read-only and sticky for added measure.
gpu-manager only caught my
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu-drivers-common (Ubuntu)
Status: New = Confirmed
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With commentary:
How many cards? 1
The number of cards has changed! -- No it hasn't.
Has the system changed? Yes -- Wrong
System configuration has changed -- Wrong
Single card detected
Driver is already
** Attachment added: gpu-manager-log
https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1376832/+attachment/4222613/+files/gpu-manager.log
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