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ShawJohn · 04-19-2008, 07:39 PM

Quote: Originally Posted by silvi4000

Yesterday I ran windows update on the carputer. There was an updated TS driver so I went ahead and selected it for download. Once the download and installation finished the screen calibration went to $&^%. As soon as the installation finished the x coordinates became "compressed" to the left. What I mean is that as you moved your finger from left to right, the pointer increments to the right were less and less as you approached the right border, like a logarithmic graph behaves. I did the update while driving and I couldn't use the carputer for the rest of the trip, it was so bad I had to vnc in to run the calibration utility.
This points to a driver issue, as soon as the driver was replaced, the calibration was lost. I thought calibrating the screen meant training the controller on were the edges of the screen were so it could send the right coordinates to the driver. The way this seems to work is that calibration is done on software on the driver.
This could be confirmed by taking the screen to different computers and verifying that calibration is "lost" as you moved it from computer to computer.
The updated driver didn't made a difference, the screen still has a bump on the right hand of the screen.
Like ShawJohn said, the right hand side is working as far as the Y coordinate goes, its just the X coordinated that get screwed.

Exactly as I thought, although I didn't realise the car had updated its touchscreen software automatically through WU. I saw the new driver, just didn't know it had installed. I knew it was software related as a couple of times the pointer had just drifted left and then back again a few times whilst I was holding it down. I was beginning to this my TS controller might be going for a burton.

Will rollback to old driver tomorrow just to be sure...

It could be that there is a driver issue, AND a physical TS fault too

My TS has had right had side issues for ages, but has only done this stuff recently, last month or two!

X-axis issue moved to new thread

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04-19-2008, 07:39 PM	#47
ShawJohn FLAC Join Date: Aug 2004 Location: On the edge! Posts: 1,772	Quote: Originally Posted by silvi4000 Yesterday I ran windows update on the carputer. There was an updated TS driver so I went ahead and selected it for download. Once the download and installation finished the screen calibration went to $&^%. As soon as the installation finished the x coordinates became "compressed" to the left. What I mean is that as you moved your finger from left to right, the pointer increments to the right were less and less as you approached the right border, like a logarithmic graph behaves. I did the update while driving and I couldn't use the carputer for the rest of the trip, it was so bad I had to vnc in to run the calibration utility. This points to a driver issue, as soon as the driver was replaced, the calibration was lost. I thought calibrating the screen meant training the controller on were the edges of the screen were so it could send the right coordinates to the driver. The way this seems to work is that calibration is done on software on the driver. This could be confirmed by taking the screen to different computers and verifying that calibration is "lost" as you moved it from computer to computer. The updated driver didn't made a difference, the screen still has a bump on the right hand of the screen. Like ShawJohn said, the right hand side is working as far as the Y coordinate goes, its just the X coordinated that get screwed. Exactly as I thought, although I didn't realise the car had updated its touchscreen software automatically through WU. I saw the new driver, just didn't know it had installed. I knew it was software related as a couple of times the pointer had just drifted left and then back again a few times whilst I was holding it down. I was beginning to this my TS controller might be going for a burton. Will rollback to old driver tomorrow just to be sure... It could be that there is a driver issue, AND a physical TS fault too My TS has had right had side issues for ages, but has only done this stuff recently, last month or two! X-axis issue moved to new thread . __________________ My Nissan 200SX @ Silverstone My Car's spec list + pics Stealth CarPC fab'ing... Last edited by ShawJohn; 04-19-2008 at 07:52 PM.