Vista & HP1740 LCD Panel Driver – WARNING!!!!

Well interesting weekend with Vista. On Friday I checked on Windows Update and there were updates for my HP nw8240 laptop hardware up a new graphics driver for ATI Mobility FireGL and the HP 1740 LCD I have connected to my docking station at work. So what does a good Vista person do, but opt to download the updates in order to get the ‘BEST” Vista experience.

Well on Friday all seemed to go well and after the update (no reboot now required for graphics driver updates which is really cool) and I continued to work happily with my 2 screen setup. Coming out of standby at home it was a different matter however, suddenly I could only run at 1280 x 1024 on the laptop panel (normally 1680 x 1050) and kept getting a ‘you have have no privelege to change settings’ followed by ‘this is an invalid display configuration’ whenever I tried to change the display setting.

So obvious thing is to suspect the updates I installed on Friday and I went to the graphics adapter and opted to rollback the driver – no change! Obviously I can’t rollback the LCD panel driver as since it isn’t attached I can’t access its driver properties from anywhere. Let’ts try looking at the installed updates from Control Panel – only shows the Windows updates installed and not those for drivers or other in-built apps (such as Windows Mail which also got an update).

Well didn’t need to do much over the weekend so got with weekend stuff and then back in work Monday to fix this. Well now things gets really messed up since once I bring up the laptop on the docking station I can only have a display on the in-builf LCD and am not able to show anything on the second display (you have no rights, etc, etc). So let’s just roll back the Hp1740 LCD driver now we have access to it under devices ┬áin Computer Management.

WHAT! Now I have 2 screens showing the same content running at 640 x 480! Go back, update the ATI graphics driver again, try a reboot, nope still 640 x 480 – You have no rights, etc, etc. Have you ever tried Vista in 640 x 480, it REALLY doesn’t look good.

THINK! OK. open Computer Management, go to Devices, select the HP1740 LCD from the displays list and opt to uninstall it (include selecting to delete driver software). Screens go blank, wait for drive light to stop, press standby button and then bring laptop back out of standby and we are back in hi-res mode. Now bring up display properties and opt to extend desktop onto second monitor and we are back in business.

Moral of story:-

[1] Always create a restore point when updating drivers (I didn’t in this case)

[2] Avoid the HP1740 LCD driver like the plaque if you value your sanity