<a@b.c> wrote in message news:l5tss51oq0iar37au5efvagu5mam0f92qh@4ax.com...
> On Tue, 20 Apr 2010 19:53:29 +0100, "johnbee"
> <johnbrockbank@virginmedia.com> wrote:
>
>>
>><a@b.c> wrote in message
>>news:iihqs5p3rcoc8j4ebmrjn8e3ohftebr90n@4ax.com...
>>> I am using an XFX video card based on the ATI 5450 chip. I like to use
>>> the 1280x800 resolution. This works fine in Windows XP with my
>>> Samsung T220 monitor.
>>>
>>> But with Windows 7 it does not display properly. The monitor is
>>> getting a signal which says there are 960 vertical lines rather than
>>> the 800 vertical lines Windows is set for. So the image is compressed
>>> vertically and there's black space at the top and bottom since there
>>> are only 800 lines in the image and the monitor thinks there should be
>>> 960. This is with ATI's latest 10.3 drivers.
>>>
>>> In XP the display adapter uses interrupt 16 but with W7 is uses some
>>> sort of simulated interrupt with a strange long number.
>>>
>>> Is there a way I can change W7 to use interrupt 16 for the video card?
>>>
>>> Also I remember that in XP you could press F5 during installation and
>>> get an option to install without interrupt sharing. Is there
>>> something similar in W7 and should I try a re-install?
>>>
>>> THANKS IN ADVANCE.
>>>
>>
>>I will say something in case nobody knows the exact answers to what you
>>ask.
>>The Windows 7 documentation, help system, and all the books I have read
>>(well, both of them, The Windows Bible and the Administrator's Pocket
>>Consultant) are very adamant that you should use the standard display
>>settings for your monitor.
>>
>>They have done something to the monitor functions in Windows 7 because
>>much
>>software does not work even if one just chooses to up the screen text size
>>by clicking on preferences. So that, coupled with the urging to use the
>>monitor's native settings seems to me to mean that they know it does not
>>work as flexibly as previous versions. (I know nothing of Vista as I
>>missed
>>it out).
>>
>>Just in case you have not done this, type msinfo32 into the search
>>programs
>>and files box on the Start menu. That will give a list of IRQ numbers -
>>mine are all the usual little ones except for three labelled hub.
>
>
> Thanks for your help. I'll have to live with the 1680x1050 resolution
> until ATI or somebody fixes this. I set W7 to used the Medium screen
> sizing option so most things are resized bigger but I see some stuff
> just doesn't resize and work properly. My interrupt table says the
> video card is using IRQ 4294967294 which sounds like some sort of
> simulated interrupt. I seem to remember that when XP first came out I
> had similar problems with an older ATI card and was only able to solve
> them by installing XP for a generic computer using the F5 option. I
> don't remember if I did this the last time I reinstalled XP or if ATI
> fixed the drivers. I've sent a report to ATI about this so maybe
> they'll fix it soon. Thanks again.
The IRQ on my notebook with the ATI Mobility Radeon HD2600 PCIe is the same
as yours, with my Intel wireless adapter being one less. Things that make
you go "Huh!"
One thing I found in your manual is that 1280x800 is not a native preset for
that monitor, so that may be part of the problem. One thing you might try if
you have the hardware is to change the way you're connected. For example, if
you currently have it connected via the DVI port, try connecting it to the
D-sub port. If you're video card doesn't have a D-sub out, you could try a
DVI-to-DSUB adaptor.
Since there is no monitor driver for Win7, you can right-click the setup
file you have (which is probably for Vista?) and select Properties,
Compatibility, check the box next to "Run this program in compatibility mode
for:" and pick Vista Service Pack 2. Win7 should then show the monitor as
what it is. This link is for the driver through Vista:
http://www.samsung.com/us/support/d...cd=&prd_mdl_name=T220HD&prd_ia_sub_class_cd=P
They haven't released one for Win7 and probably won't if they haven't by
now.
--
SC Tom