[Nouveau] [Bug 108615] [NVE7] changing resolution causes blank screen

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108615

Maris Nartiss <maris.nartiss at gmail.com> changed:

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                 CC|                            |maris.nartiss at gmail.com

--- Comment #8 from Maris Nartiss <maris.nartiss at gmail.com> ---
Created attachment 145527
  --> https://bugs.freedesktop.org/attachment.cgi?id=145527&action=edit
Kernel log with a switch from native to lower resolution

Phil Turmel – I am not certain if your issue is the same as the reporter has.
I do have exactly same symptoms – after changing resolution to not native, I
get black screen with backlight on. It is not an DE or WM issue, as I was
testing with bare xinit session. If there are other outputs active, they still
show picture just fine (split screen or clone mode). Thus, as jbytecoder wrote,
X is still fine, just nothing goes to particular output device.

G98M (NV50 family) card tested with kernel 5.0 and 5.3.

Attached dmesg was generated after a reboot, stopping sddm, starting xinit
session and changing resolution to 1024x768 (native is 1440x900).

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