I've got a new machine with an nVidia card and an external 4K display. For whatever reason selecting 4K in the graphical display resolution tool causes the Nouveau driver to crash. After this I can no longer log in because even after a reboot it tries to select 4K again.
How can I (from ssh) change the display resolution back to something lower?
Rich.
On Tue, 3 Sep 2019 17:46:53 +0100 Richard W.M. Jones wrote:
How can I (from ssh) change the display resolution back to something lower?
If it stores it on a per-user basis, perhaps creating a new user via ssh would allow you to login?
This could be this bug:
On Tue, Sep 03, 2019 at 01:24:02PM -0400, Tom Horsley wrote:
On Tue, 3 Sep 2019 17:46:53 +0100 Richard W.M. Jones wrote:
How can I (from ssh) change the display resolution back to something lower?
If it stores it on a per-user basis, perhaps creating a new user via ssh would allow you to login?
That's a good idea - wish I'd thought of it before :-/
It turns out that you can remove this file:
.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml
which resets everything. I guess that's XFCE only of course.
This could be this bug:
The messages from nouveau were these, but they don't look very similar (to anything online in fact):
[ 296.106830] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119007 [ 296.190651] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.194547] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.198445] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.202331] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.206210] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.216671] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.230534] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.237774] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000 [ 296.258270] nouveau 0000:09:00.0: i2c: aux 0005: timeout 01119000
There were no additional messages in journalctl either.
Rich.
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Richard W.M. Jones -
Tom Horsley