1. UMAVGA.exe Driver
2. UMA95.TXT File Contents

UMA95.TXT Driver File Contents (UMAVGA.exe)

Windows 95 graphic driver version 1.10 :
     
1 - What's new
2 - Contents
3 - How to install this driver 
4 - Driver features
5 - Known bugs
6 - Problems
     
1 - What's new
     
- Direct Draw VPE functions
- Software emulation for downscaling in Direct Draw VPE functions 
- MCI driver
     
2 - Contents
     
Standard Windows 95 driver :
UMA.DRV
UMAVDD.VXD
MAGICVXD.VXD
     
Direct Draw driver :
UMADD.DLL
     
MCI driver :
UMAMCI.DRV
UMAMCI32.DLL
     
Control panel sheet page :
UMACPLX.DLL
UMACPLX.VXD
     
Installation file :
UMA.INF
     
3 - How to install this driver 
     
Select Display icon in Control Panel
Select Advanced Properties button in Settings sheet page 
Select Change button in Adapter sheet page
Press Have disk... button and insert driver disk 
     
Warning : Direct Draw 5.0 must be installed before use MCI driver 
or Direct Draw VPE functions (not necessary with Windows 98).
     
Warning : Windows 95 can't automatically detect the internal STPC VGA 
because this hardware is not a PCI or ISA adapter. If an other 
graphic driver is active on the system (after using an external VGA
or using an hard disk from an other computer), Windows 95 display this 
message at startup : 'Your display adapter is not configured properly'. 
Press OK and let Windows proceed automatic hardware detection.
Windows will find a standard VGA board and install the corresponding driver. 
Then, you can install STPC driver. Don't try to install STPC driver
before Windows automatic detection.
     
If Windows 95 startup display a message concerning conflict with display 
driver, suppress all the display adapters in Device Manager
(Control Panel - System) and restart. Then, you'll
have 'Your display adapter is not configured properly' message.
     
4 - Driver features
     
4.1 - Standard driver
     
4.1.1 - Graphics modes support
     
640x480 16 colors using standard VGA Windows 95 driver
        (no hardware accelerations) 
800x600 16 colors using standard VGA Windows 95 driver
        (no hardware accelerations)
     
640x480  256, 64K or 16M colors with full hardware accelerations 
800x600  256, 64K or 16M colors with full hardware accelerations 
1024x768 256 or 64K with full hardware accelerations
     
Before use a graphic mode, you must be sure to : 
- Have enough frame buffer memory
- Disable TV ouput if use 800x600 or 1024x768 resolution
     
4.1.2 - Virtual desktop management
     
To change virtual desktop size :
Select Display icon in control panel 
Select UMA Config sheet page
(With Windows 98, select Advanced... in Settings sheet page)
     
Change 'Limit screen to' parameter to use virtual desktop.
If current resolution is larger than 'Limit screen to' parameter, 
driver use virtual desktop.
     
example : 
Screen resolution = 1024x768 (Display - Settings) 
Limit screen to   = 800x600
Windows 95 display a 1024x768 virtual desktop with a 800x600 physical 
resolution.
     
Use 'Borders' parameters to add black borders around virtual desktop.
     
4.2 - Direct Draw driver
     
Direct draw driver support :
- Direct access to video memory functions with full hardware accelerations 
- Overlay surface functions
- Video port functions (VPE)
     
4.3 - MCI driver
     
How to use MCI driver :
     
- Install Direct X 5.0 
  or copy Direct X 5.0 DDRAW.DLL and DDRAW16.DLL in Windows\System directory 
  (not necessary with Windows 98)
- start MPLAYER.EXE from Windows directory
- Select 'Video Input Port' in 'Device' menu
- Select 'Properties' in 'Device' menu to change the config :
  CCIR656, CCIR601 or BROOKTREE with PAL or NTSC.
     
5 - Known bugs
     
- Problems in Direct Draw standard functions. Active Movie 
  display wrong images when displaying video (MPEG, AVI... files).
     
- Refresh rate management doesn't work.
     
- 1280x1024 graphic mode displaying problems : too high refresh rate.
     
6 - Problems
     
6.1 - Windows 95 display this message at startup : 
'Your display adapter is not configured properly'
     
Press OK and let Windows 95 proceed hardware automatic detection. 
Windows 95 will install standard VGA driver.
Then, install STPC driver.
     
6.2 - At startup, Windows 95 display a message concerning conflict 
with Display Adapter
Start Control Panel - System Icon.
Suppress all display adapter in Device Manager. 
Restart the computer.
If Windows 95 display this message :
'Your display adapter is not configured properly', see 5.1
     
6.3 - Windows 95 crash at startup 
Enter BIOS to verify frame buffer size (chipset setup)
     
6.4 - Windows screen is not stable or mouse cursor is not correct 
If using 800x600 or 1024x768 graphic mode,
enter BIOS to verify TV output is disable (chipset setup)
     
6.5 - Top or bottom part of the screen is not displayed 
enter BIOS to verify TV output is disable (chipset setup). 
If you want use TV output, add black borders in 
screen part of UMA Config sheet page (Control Panel - Display icon)
     
6.6 - MCI driver : Some glitch appear on the right of video 
when using high resolution graphic mode
You must use EDO RAM and verify DRAM type in BIOS Chipset setup
     
6.7 - MCI driver : error message at startup : 
'QueryInterface IID_IDDVideoPortContainer Error' 
You must install DirectX 5.0