Public bug reported:
When running Ubuntu 7.04 from the live CD, the screen is corrupted when
running at [EMAIL PROTECTED], the connected display's native resolution.
The corruption shows as 9 purple/blue 'fuzzing' vertical lines running
from the top to the bottom of the screen, approximately 3cm apart from
each other, with a slightly larger gap of about 6cm between the 5th and
6th line from the left. The lines are invisible on a white or black
background, and fully visible on the default background. On a full black
background, or the default background, additional, intermitting white
distortion is visible when moving the mouse (??!!).
Things I've excluded as possible causes for this corruption:
-The screen: I've tried 2 different LCD screens, a Dell 1703FPs and a HP1755
-The VGA cable: I've tried another, much thicker VGA cable, didn't make any
difference
-Possible glitch in one single PC: the problem exists in both the GX115 and the
GX150, whereas the problem doesn't exist when running Windows on the same
machine, at the same resolution.
The corruption disappears when lowering the resolution to 1024x768.
Output of 'sudo lshw' on the GX115 (I'll add the output of the GX150 as
well, if desired):
ubuntu
description: Low Profile Desktop Computer
product: OptiPlex GX115
vendor: Dell Computer Corporation
serial: MFET8
width: 32 bits
capabilities: smbios-2.3 dmi-2.3
configuration: administrator_password=enabled boot=normal
chassis=low-profile frontpanel_password=enabled power-on_password=enabled
uuid=44454C4C-00D7-104D-8046-80C04F455438
*-core
description: Motherboard
product: OptiPlex GX115
vendor: Dell Computer Corporation
physical id: 0
*-firmware
description: BIOS
vendor: Dell Computer Corporation
physical id: 0
version: A03 (11/03/2000)
size: 64KB
capacity: 448KB
capabilities: isa pci pnp apm upgrade shadowing escd cdboot
bootselect edd int13floppytoshiba int13floppy360 int13floppy1200 int13floppy720
int13floppy2880 int5printscreen int9keyboard int14serial int17printer
int10video acpi usb ls120boot zipboot biosbootspecification netboot
*-cpu
description: CPU
product: Pentium III (Coppermine)
vendor: Intel Corp.
physical id: 400
bus info: [EMAIL PROTECTED]
version: 6.8.6
slot: Microprocessor
size: 933MHz
capacity: 1600MHz
width: 32 bits
capabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 sep
mtrr pge mca cmov pat pse36 mmx fxsr sse up
*-cache:0
description: L1 cache
physical id: 700
size: 32KB
capacity: 32KB
capabilities: internal varies unified
*-cache:1
description: L2 cache
physical id: 701
size: 256KB
capacity: 256KB
capabilities: internal varies unified
*-memory
description: System Memory
physical id: 1000
slot: System board or motherboard
size: 512MB
capacity: 512MB
*-bank:0
description: DIMM SDRAM Synchronous 133 MHz (7.5 ns)
physical id: 0
slot: DIMM_A
size: 256MB
width: 64 bits
clock: 133MHz (7.5ns)
*-bank:1
description: DIMM SDRAM Synchronous 133 MHz (7.5 ns)
physical id: 1
slot: DIMM_B
size: 256MB
width: 64 bits
clock: 133MHz (7.5ns)
*-pci
description: Host bridge
product: 82815 815 Chipset Host Bridge and Memory Controller Hub
vendor: Intel Corporation
physical id: 100
bus info: [EMAIL PROTECTED]:00.0
version: 02
width: 32 bits
clock: 33MHz
*-display
description: VGA compatible controller
product: 82815 CGC [Chipset Graphics Controller]
vendor: Intel Corporation
physical id: 2
bus info: [EMAIL PROTECTED]:02.0
version: 02
size: 64MB
width: 32 bits
clock: 66MHz
capabilities: vga bus_master cap_list
configuration: driver=i810_smbus latency=0
resources: iomemory:f8000000-fbffffff iomemory:ff000000-ff07ffff
irq:9
*-pci
description: PCI bridge
product: 82801 PCI Bridge
vendor: Intel Corporation
physical id: 1e
bus info: [EMAIL PROTECTED]:1e.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: pci normal_decode bus_master
*-network
description: Ethernet interface
product: 3c905C-TX/TX-M [Tornado]
vendor: 3Com Corporation
physical id: c
bus info: [EMAIL PROTECTED]:0c.0
logical name: eth0
version: 78
serial: 00:b0:d0:b8:bc:ac
size: 100MB/s
capacity: 100MB/s
width: 32 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical tp mii 10bt
10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=off broadcast=yes driver=3c59x
duplex=full ip=192.168.0.236 latency=64 link=yes maxlatency=10 mingnt=10
multicast=yes port=MII speed=100MB/s
resources: ioport:ec80-ecff iomemory:fdfffc00-fdfffc7f irq:11
*-isa
description: ISA bridge
product: 82801BA ISA Bridge (LPC)
vendor: Intel Corporation
physical id: 1f
bus info: [EMAIL PROTECTED]:1f.0
version: 02
width: 32 bits
clock: 33MHz
capabilities: isa bus_master
configuration: latency=0
*-ide
description: IDE interface
product: 82801BA IDE U100
vendor: Intel Corporation
physical id: 1f.1
bus info: [EMAIL PROTECTED]:1f.1
logical name: scsi0
logical name: scsi1
version: 02
width: 32 bits
clock: 33MHz
capabilities: ide bus_master emulated scsi-host
configuration: driver=ata_piix latency=0
resources: iomemory:1f0-1f7 iomemory:3f0-3ef iomemory:170-177
iomemory:370-36f ioport:ffa0-ffaf
*-disk
description: SCSI Disk
product: Maxtor 5T020H2
vendor: ATA
physical id: 0
bus info: [EMAIL PROTECTED]:0.0.0
logical name: /dev/sda
version: TAH7
serial: T2H94KGC
size: 19GB
capabilities: partitioned partitioned:dos
configuration: ansiversion=5
*-volume:0
description: HPFS/NTFS partition
physical id: 1
bus info: [EMAIL PROTECTED]:0.0.0,1
logical name: /dev/sda1
capacity: 10GB
capabilities: primary bootable
*-volume:1
description: Extended partition
physical id: 2
bus info: [EMAIL PROTECTED]:0.0.0,2
logical name: /dev/sda2
size: 8785MB
capacity: 8785MB
capabilities: primary extended partitioned
partitioned:extended
*-logicalvolume
description: HPFS/NTFS partition
physical id: 5
logical name: /dev/sda5
capacity: 8785MB
*-cdrom
description: SCSI CD-ROM
product: CD-ROM SC-148C
vendor: SAMSUNG
physical id: 1
bus info: [EMAIL PROTECTED]:0.0.0
logical name: /dev/cdrom
logical name: /dev/scd0
logical name: /dev/sr0
version: C002
capabilities: removable audio
configuration: ansiversion=5
*-disc
physical id: 0
logical name: /dev/cdrom
*-usb
description: USB Controller
product: 82801BA/BAM USB (Hub #1)
vendor: Intel Corporation
physical id: 1f.2
bus info: [EMAIL PROTECTED]:1f.2
version: 02
width: 32 bits
clock: 33MHz
capabilities: uhci bus_master
configuration: driver=uhci_hcd latency=0
resources: ioport:ff80-ff9f irq:11
*-usbhost
product: UHCI Host Controller
vendor: Linux 2.6.20-15-generic uhci_hcd
physical id: 1
bus info: [EMAIL PROTECTED]
logical name: usb1
version: 2.06
capabilities: usb-1.10
configuration: driver=hub maxpower=0mA slots=2 speed=12.0MB/s
*-serial UNCLAIMED
description: SMBus
product: 82801BA/BAM SMBus
vendor: Intel Corporation
physical id: 1f.3
bus info: [EMAIL PROTECTED]:1f.3
version: 02
width: 32 bits
clock: 33MHz
configuration: latency=0
resources: ioport:dcd0-dcdf irq:10
*-multimedia
description: Multimedia audio controller
product: 82801BA/BAM AC'97 Audio
vendor: Intel Corporation
physical id: 1f.5
bus info: [EMAIL PROTECTED]:1f.5
version: 02
width: 32 bits
clock: 33MHz
capabilities: bus_master
configuration: driver=Intel ICH latency=0
resources: ioport:d800-d8ff ioport:dc80-dcbf irq:10
** Affects: Ubuntu
Importance: Undecided
Status: Unconfirmed
--
screen output is corrupted on Dell OptiPlex GX115 and GX150
https://bugs.launchpad.net/bugs/116662
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