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Installing OS/2:Video drivers |
There's two versions of the video drivers available for the Chips & Technologies 65535 chipset. Those on the OS/2 Device Driver Pak CD/website do not work, as I believe they expect to see 1MB of video RAM, and so cannot initialise the video hardware correctly. Fortunately, Adam Lambert found some older drivers at the Toshiba Canada web site, for some old Toshiba laptops, and these work with the PC110 configuration. There does, however, seem to be a problem with WinOS/2 seamless support using these drivers, but full-screen sessions are OK.
Without trying to mix and match versions of the OS/2 and WinOS/2
drivers, I have come to the conclusion that there are two real avenues to go down for
video support, and which one you choose is dictated by what you intend to do with the
PC110 once OS/2 is installed. Here's some detailed pros and cons for the available
drivers:
| Driver | Pro | Con |
| VGA | Supports seamless WinOS/2 sessions. | Supports 16 colours only. |
| OS/2 DDPak C&T 655xx | None. | Can't initialise properly, so don't work. |
| Toshiba C&T 65535 | Supports 256 colours. | Doesn't support seamless WinOS/2. Performance slower than VGA driver. Must press <Fn><F7> after desktop appears to get correct display. |
Each C&T driver has its own readme file relating to installation. I did have one or two problems during installation with messages along the lines of 'Your video hardware does not support the specified mode'. I cured this by a reset to VGA, folowed by a deletion of the SVGA data file. Note that using the standard 'Reset to VGA' option in the recovery menu was not sufficient, but then it often isn't!
RSPDSPI /pk:VGA /sk:none /s:A: /t:C:
to fully reset to VGA, using a source drive of A: with OS/2 installed on C:.
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