MacBookAir i7 OSX Lion Performance Woes

Twist · 10-13-2011, 02:11 AM

Quote:

Originally Posted by EddieMa

I'm considering getting a MBA + two USB screens -- could I ask for more details from you?

There's some further detail about the Lion vs DisplayLink performance problems here: http://www.displaylink.org/forum/showthread.php?t=1031

Like several others, I've been forced to uninstall the DisplayLink driver entirely to regain reasonable graphics performance. Once the iOS 5 update rush abates and I'm able to install the 10.7.2 update, I'll give the driver another try and report back.

Twist · 10-13-2011, 09:43 PM

10.7.2 seems to have resolved the issue. Obviously we're never going to see performance comparable to a hardware GPU with a simple USB adapter and software display driver, but I'm back to using dual 22" displays with my new MBA, and the performance is quite acceptable.

Twist · 10-14-2011, 07:17 AM

Okay, 10.7.2 isn't a complete fix. I've provided more detail in the other thread linked in the post above.

jaddison · 10-27-2011, 11:45 PM

Quote:

Originally Posted by Twist

Okay, 10.7.2 isn't a complete fix. I've provided more detail in the other thread linked in the post above.

I agree with this - 10.7.2 is NOT a complete fix. It appears to work better, but in reality, the problem returns - just in a less consistent fashion.

cairo · 11-28-2011, 09:13 AM

Just tried the new Beta 5 drivers and my MacBook Air runs a lot faster compared to the Beta 4 driver.

Thanks for the improvement.

MisterSpock · 12-02-2011, 10:55 AM

With the new beta 5 the second display on my MB Air does not work any longer. It just stays black. Attached is one Apple cinema by the display adapter and another over USB. With the beta 4 it works, but slow.

I already tried to uninstall and re-install the drivers but without any effect. only re-installing Beta 4 brings up the screen again.

ChristianP · 12-02-2011, 03:56 PM

Quote:

Originally Posted by MisterSpock

With the new beta 5 the second display on my MB Air does not work any longer. It just stays black. Attached is one Apple cinema by the display adapter and another over USB. With the beta 4 it works, but slow.

I already tried to uninstall and re-install the drivers but without any effect. only re-installing Beta 4 brings up the screen again.

Could you please temporarily reinstall b5 and use the debug tool here http://www.displaylink.com/support/ticket.php?id=269? Just connect your DisplayLink adapter, collect information and post the output file. Thanks

12-02-2011, 10:55 AM	#6
MisterSpock Junior Member Join Date: May 2011 Posts: 10	MB Air does not work With the new beta 5 the second display on my MB Air does not work any longer. It just stays black. Attached is one Apple cinema by the display adapter and another over USB. With the beta 4 it works, but slow. I already tried to uninstall and re-install the drivers but without any effect. only re-installing Beta 4 brings up the screen again.

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10-13-2011, 09:43 PM	#2
Twist Junior Member Join Date: Oct 2011 Posts: 6	10.7.2 seems to have resolved the issue. Obviously we're never going to see performance comparable to a hardware GPU with a simple USB adapter and software display driver, but I'm back to using dual 22" displays with my new MBA, and the performance is quite acceptable.

10-14-2011, 07:17 AM	#3
Twist Junior Member Join Date: Oct 2011 Posts: 6	Okay, 10.7.2 isn't a complete fix. I've provided more detail in the other thread linked in the post above.

11-28-2011, 09:13 AM	#5
cairo Junior Member Join Date: Oct 2011 Posts: 3	Just tried the new Beta 5 drivers and my MacBook Air runs a lot faster compared to the Beta 4 driver. Thanks for the improvement.