no screens found(EE)

[rayandrews]

I'm tracking sid, latest upgrade somehow destroyed my video. I'm running a backup now, so it's not a hardware issue. I've only started trying to figure out what it is, but it's not the kernel since running a older kernel didn't change it. More info available if anyone is interested, thanks.

[rayandrews]

FWIW, the first error message in Xorg.0.log is "failed to set drm interface version". Googling this there seems to have been some issue with this in the past, but not too recently. My card is Nvidea, and I use the Nouveau driver. I don't use bumblebee.

[GarryRicketson]

I'm tracking sid, latest upgrade somehow destroyed my video

Well , this is going to be a complex problem, a "unstable" version of Debian,
combined with known to be problematic Nvdia is not a good combination.

My card is Nvidea, and I use the Nouveau driver. I don't use bumblebee.

Search found 15 matches: +problems +with +Nvidia +Nouveau +Debian +unstable
Maybe there is something in those, ...many seem to have solved it by using Bumblebee, but those also were stable versions of Debian

[fireExit]

My card is Nvidea, and I use the Nouveau driver. I don't use bumblebee.

why the bumblebee reference?
bumblebee is only useful in some hardware configurations (dual gpu nvidia+intel)
do you have such system?
post the output of

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lspci -vnn | grep '\''[030[02]\]'

[rayandrews]

It was certainly something in the upgrade, I've upgraded good backups twice, and both times it screwed it up. This Debian may be called 'unstable' but I have almost zero problems with upgrades so I don't want to bitch too loudly. I'd rather I didn't have to change drivers or anything.

[rayandrews]

I mentioned bumblebee simply because most of the Google searches for a "failed to set drm interface version" message referred to 'bumblebee'.
Here's my card:

01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GF119 [GeForce GT 610] [10de:104a] (rev a1) (prog-if 00 [VGA controller])

[fireExit]

that is *NOT* an optimus card, so no business installing bumblebee.

1. are you absolutely sure that you didn't install the nvidia driver? or create a xorg.conf?

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dpkg -l | grep nvidia
cat /etc/X11/xorg.conf

2. are you fully updated?

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apt-get -s dist-upgrade
apt-get -f install

3. sources.list

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cat /etc/apt/sources.list && grep . /etc/apt/sources.list.d/*

[rayandrews]

No, I had no intention of installing bumblebee, I was just trying to head off questions about it.

I've had an xorg.conf since way back. Without it only one of my monitors fires up. If anything changed in there, I didn't do it. nvidia isn't installed . The xorg.conf on the busted install is identical to the one on the working install. Yep, I'm fully updated, that's what caused the problem. sources.list, unchanged from always:

# wheezy-updates, previously known as 'volatile'
# deb http://ftp.us.debian.org/debian/ testing-updates main contrib non-free
# deb-src http://ftp.us.debian.org/debian/ testing-updates main contrib non-free

deb http://ftp.us.debian.org/debian/ testing main contrib non-free
deb-src http://ftp.us.debian.org/debian/ testing main contrib non-free

deb http://security.debian.org/ testing/updates main contrib non-free
deb-src http://security.debian.org/ testing/updates main contrib non-free