[Nouveau] [Bug 98149] New: EDID doesn't detect resolution 1440x900 correctly NV34 FX5200Go

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Fri Oct 7 15:15:30 UTC 2016


            Bug ID: 98149
           Summary: EDID doesn't detect resolution 1440x900 correctly NV34
           Product: xorg
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: dino at archlinux.info
        QA Contact: xorg-team at lists.x.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: 

Here is the image of what it does look like: 

Dmesg log is attached below.

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