Custom Resolution Utility (CRU)
|
04-12-2015, 09:31 PM
Post: #1316
|
|||
|
|||
RE: Custom Resolution Utility (CRU)
(04-12-2015 03:51 AM)ToastyX Wrote: The proper way to define 576i with CRU is to use the "LCD standard" timing option and enter 1440x288 @ 50 Hz with "Interlaced" checked. The pixel clock should be 27 MHz. I don't know if the driver will properly handle such a resolution though.If I define it in a such way, then it is very similar to 720x288 - NVIDIA allows to define and test 720x576i custom resolution. If there is no resolutions defined in CRU, then NVIDIA says it's unsupported. (04-12-2015 03:51 AM)ToastyX Wrote:I made some measurements. In test phase there is VSYNC each 20ms and HSYNC each 64us(in opposite to 32us in progressive scan). From what I can see - probably there is also a 32us shift time to time (each field?) and from what I understand, this is very standard interlaced.(04-10-2015 08:36 PM)ksb Wrote: Added 720x576i to NVIDIA custom resolution:I have no idea how the NVIDIA control panel handles interlaced resolutions, so I don't know how to translate the timing parameters. The values in the screen shot don't make sense for 576i. I don't know if it's double-clocking the pixels or if it's actually sending 720x1152i @ 50 Hz or 720x576i @ 100 Hz. So we can conclude that "50Hz refresh rate" is actually field rate, not frame rate, but what i don't understand is why pixel clock is so high. (04-12-2015 03:51 AM)ToastyX Wrote: The color depth is showing 16-bit. Also, check in the Windows screen resolution advanced settings under "List All Modes" and see if it's in there. Windows will list interlaced resolutions at half the refresh rate. Yes, it's listed and I can even choose and apply and then Windows thinks it's switched, while actually nothing changed in output(I reopened that window in screenshot). Only - this resolution magically appears in NVIDIA CP. Notice that in Windows CP and also in this NVIDIA CP list resolution is listed as 25Hz(frame rate). If I choose 640x480 in NVIDIA CP, then 720x576 disappears from list. |
|||
« Next Oldest | Next Newest »
|
User(s) browsing this thread: 91 Guest(s)