gistfile1.txt

# Corrupted display with a 7800GT connected via DVI-HDMI to a 4k monitor.
# Monitor displays a mode of 1920x2160 @ 30Hz
$ uname -a
Linux yzzrt 3.2.0-4-amd64 #1 SMP Debian 3.2.65-1+deb7u2 x86_64 GNU/Linux
$ sudo lspci -s 01:00.0 -v
01:00.0 VGA compatible controller: NVIDIA Corporation G70 [GeForce 7800 GT] (rev a1) (prog-if 00 [VGA controller])
        Subsystem: Club-3D BV Device 0000
        Flags: bus master, fast devsel, latency 0, IRQ 16
        Memory at fd000000 (32-bit, non-prefetchable) [size=16M]
        Memory at d0000000 (64-bit, prefetchable) [size=256M]
        Memory at fc000000 (64-bit, non-prefetchable) [size=16M]
        I/O ports at bc00 [size=128]
        Expansion ROM at fe8e0000 [disabled] [size=128K]
        Capabilities: [60] Power Management version 2
        Capabilities: [68] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [78] Express Endpoint, MSI 00
        Capabilities: [100] Virtual Channel
        Capabilities: [128] Power Budgeting <?>
        Kernel driver in use: nouveau
$ grep . /sys/class/drm/card*-*/modes
/sys/class/drm/card0-DVI-I-1/modes:3840x2160
/sys/class/drm/card0-DVI-I-1/modes:1920x1080
/sys/class/drm/card0-DVI-I-1/modes:1920x1080
/sys/class/drm/card0-DVI-I-1/modes:1920x1080
/sys/class/drm/card0-DVI-I-1/modes:1920x1080
/sys/class/drm/card0-DVI-I-1/modes:1680x1050
/sys/class/drm/card0-DVI-I-1/modes:1280x1024
/sys/class/drm/card0-DVI-I-1/modes:1280x1024
/sys/class/drm/card0-DVI-I-1/modes:1440x900
/sys/class/drm/card0-DVI-I-1/modes:1280x960
/sys/class/drm/card0-DVI-I-1/modes:1152x864
/sys/class/drm/card0-DVI-I-1/modes:1280x720
/sys/class/drm/card0-DVI-I-1/modes:1280x720
/sys/class/drm/card0-DVI-I-1/modes:1440x576
/sys/class/drm/card0-DVI-I-1/modes:1024x768
/sys/class/drm/card0-DVI-I-1/modes:1024x768
/sys/class/drm/card0-DVI-I-1/modes:1024x768
/sys/class/drm/card0-DVI-I-1/modes:1440x480
/sys/class/drm/card0-DVI-I-1/modes:832x624
/sys/class/drm/card0-DVI-I-1/modes:800x600
/sys/class/drm/card0-DVI-I-1/modes:800x600
/sys/class/drm/card0-DVI-I-1/modes:800x600
/sys/class/drm/card0-DVI-I-1/modes:800x600
/sys/class/drm/card0-DVI-I-1/modes:720x576
/sys/class/drm/card0-DVI-I-1/modes:720x480
/sys/class/drm/card0-DVI-I-1/modes:640x480
/sys/class/drm/card0-DVI-I-1/modes:640x480
/sys/class/drm/card0-DVI-I-1/modes:640x480
/sys/class/drm/card0-DVI-I-1/modes:640x480
/sys/class/drm/card0-DVI-I-1/modes:640x480
/sys/class/drm/card0-DVI-I-1/modes:720x400
$ grep . /sys/class/graphics/fb0/*
/sys/class/graphics/fb0/bits_per_pixel:32
grep: /sys/class/graphics/fb0/bl_curve: No such device
/sys/class/graphics/fb0/dev:29:0
grep: /sys/class/graphics/fb0/device: Is a directory
/sys/class/graphics/fb0/modes:U:3840x2160p-0
/sys/class/graphics/fb0/name:nouveaufb
/sys/class/graphics/fb0/pan:0,0
grep: /sys/class/graphics/fb0/power: Is a directory
/sys/class/graphics/fb0/rotate:0
/sys/class/graphics/fb0/state:0
/sys/class/graphics/fb0/stride:15360
grep: /sys/class/graphics/fb0/subsystem: Is a directory
/sys/class/graphics/fb0/uevent:MAJOR=29
/sys/class/graphics/fb0/uevent:MINOR=0
/sys/class/graphics/fb0/uevent:DEVNAME=fb0
/sys/class/graphics/fb0/virtual_size:3840,2160