[Bug 98149] New: EDID doesn't detect resolution 1440x900 correctly NV34 FX5200Go - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 98149] New: EDID doesn't detect resolution 1440x900 correctly NV34 FX5200Go
Date: Fri, 07 Oct 2016 15:15:30 +0000	[thread overview]
Message-ID: <bug-98149-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=98149

            Bug ID: 98149
           Summary: EDID doesn't detect resolution 1440x900 correctly NV34
                    FX5200Go
           Product: xorg
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: dino-fd97jBR+K/4TdH58SC1qeg@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

Created attachment 127102
  --> https://bugs.freedesktop.org/attachment.cgi?id=127102&action=edit
Dmesg log

I have an older laptop Toshiba P25-S609 which has NV34 based graphics (NVIDIA
FX5200Go). With 4.2 kernel and lower (and possibly 4.3) native resolution
1440x900 is detected properly. With 4.4 kernel and newer (e.g. Xubuntu 16.04.1
and newer) image on screen is displayed really weird. It is split in 4 parts,
and then it is shown from right to left (inverted). With xrandr --newmode and
cvt 1440 900 I can set the resolution, but then tty is still messed up.
I have tried to get the bug with options drm.debug=0x1e nouveau.debug=debug,
and vbios.rom from /sys/kernel/debug/dri/0/ and it is here: 
http://filebin.ca/2xexyy0VGT9L/vbios.rom

Here is the image of what it does look like: 
http://imgur.com/a/ZUi0j 

Dmesg log is attached below.

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