TP 770 - Product Limitations

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Service Hints & Tips

Document ID: PFAN-3PMP6U

TP 770 - Product Limitations

Applicable to: World-Wide

Enhanced Video and MPEG Restrictions
Video capture/overlay/MPEG playback functions are not supported in the following video modes:
- 800 x 600 resolution and 16M colors
- 1600 x 1200 resolution and 256 colors
- All 16 color modes
- Virtual screen mode (such as 1280 x 1024 on an LCD)

CD-i Interactive is not supported.

Video Capture driver is not supported on OS/2 Warp Version 3.

1024 x 768 256 color mode is recommended for optimal motion video quality of MPEG-2/DVD playback.

IBM MPEG2 and ZV card cannot be used simultaneously. Some ZV cards reserve VRAM for its use when installed in the ZV Port. When using MPEG-2, remove the ZV card from the ZV Port.

Video Restrictions

3D acceleration is supported under Windows 95 and Windows NT only.

3D acceleration is supported in 64K and 16M color modes only.

Windows 95 Limitations

When one CardBus card is already configured in either system slot or docking station slot, you need to configure the second CardBus card using the Control Panel System icon. The second CardBus card cannot be configured automatically.

CardBus PC Cards are not supported in SelectaDock I and SelectaDock II.

OS/2 Limitations

When using Warp Version 3, FixPak XR_W030, or later, is required.

When using Warp Version 4, FixPak XR_M002, or later, is required.

CardBus PC Cards are not supported under OS/2.

ZV Card is not supported under OS/2.

OS/2's native mouse driver does not work with ThinkPad 770. The TrackPoint driver must be used.

Video-IN is not supported under OS/2 Version 3.

Windows NT Limitations

In Windows NT 3.51 and NT 4.0, hibernation is not supported when the drive is formatted for NTFS.
CardBus PC Cards are not supported under Windows NT 4.0.
DVD Movie playback is not supported under Windows NT 4.0.
Multi-function PC cards are not supported under Windows NT 4.0.
ATA Boot is not supported under Windows NT 4.0.
ZV Card is not supported under Windows NT 4.0.
When using Windows NT, IRQ 3, 4, and 15 are reserved for the system unit, and are not available when docked, even if those IRQs are not occupied.

Suspend/Resume Limitations

RI resume is not supported under Windows 95 native PCMCIA driver. CardWorks is required to get this function.

Do not remove or install PC cards during suspend mode.

When using the ThinkPad modem, it must be set up as "hardware FIFO" enabled, or "hardware flow control" enabled, or UART 16550A mode; otherwise a fax or modem incoming call cannot be received during suspend mode. On Windows 95
and Windows NT, this mode is enabled as default. For OS/2 or DOS/Windows 3.1, setup may be in the application settings. For example, OS/2 FaxWorks has settings (Utilities -- Settings -- Modem Type -- Use HW FIFO (16550A))

Other Limitations

IRQ sharing between DSP and Modem is supported under Windows 95 only.

Under OS/2 WIN-OS/2 session, TrackPoint Scrolling function is not supported.

Double-click on the objects in the TrackPoint Magnifying Glass window is not supported. (Single-click is supported.)

VoiceType(R) Dictation 3.0 is not supported on the ThinkPad 770.

LANDesk Client Manger (LDCM) cannot be installed if NetFinity has already been installed. NetFinity and LDCM may conflict with each other.

DVD drive supports NTSC movies only.

Search Keywords

Hint Category

General Information

Date Created

10-12-97

Last Updated

24-09-98

Revision Date

23-09-99

Brand

IBM ThinkPad

Product Family

ThinkPad 770

Machine Type

9548, 9549

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

	Search Keywords
	Hint Category	General Information
	Date Created	10-12-97
	Last Updated	24-09-98
	Revision Date	23-09-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 770
	Machine Type	9548, 9549
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes