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Well, maybe it can be done but Apple clearly says in the disclaimer not to do so.

Update worked flawlessly from the recent DP4 version to Lion GM for me :p
Smooth transition but it took a while even on my iMac... over 30 minutes. This is the best Lion experience I've had so far while the first dev preview felt more like having your head bitten off by a lion.
 
I don't recall the disclaimer saying not to do so. It's says you won't be able to.

Isn't that the same? ;)

But for a 'new' OS X version it is always recommended to do a clean install anyway. Just my two cents though.
 
Black screen crash

I have been running all of the Lion betas and have been experiencing consistent crashes where the screen just blacks out and I'm forced to restart. I was hoping that the GM would fix my problem but it just happened again. I am now thinking that Lion may be more sensitive to 3rd party RAM and thats what might be the cause. I'm on an i7 MBP w/ two 4GB simms.

My other MacBook hasn't experience the same type of crash and interestingly, when I plug the MBP into an external 23" apple monitor is greatly reduces the frequency of it happening...say 1 crash a day w/ monitor vs 1 crash and hour w/ using the MBP by itself. Yes I've done clean installs and switched video settings back and forth. Anyone else have this same problem?

Thx
 
I'm on an i7 MBP w/ two 4GB simms.

There's your problem. MacBook Pros take DIMMs.

Anyway. Random crashes are nearly always a problem with memory. Take one of the DIMMs out and see if it helps. If not, try again with the other one. If it works, replace the one you took out.
 
I have been running all of the Lion betas and have been experiencing consistent crashes where the screen just blacks out and I'm forced to restart. I was hoping that the GM would fix my problem but it just happened again. I am now thinking that Lion may be more sensitive to 3rd party RAM and thats what might be the cause. I'm on an i7 MBP w/ two 4GB simms.

I have 2x4GB OWC Dimms in my Macbook Pro. Never got any issues.
But yes, it is possible some 3th party Dimms aren't very stable. Thats why I always uses more expensive add-on hardware (like OWC).
imo that has nothing to do with Lion. I mean, not stable Dimms will have also issues with any other OS X.
 
Still I can't use any remote access app to wake my comp like log me in phone view..Anybody tried?
 
Intel HD3000 graphics mode is still jerky. For me this a hugh let down. This means every MBP owner will have slow graphics by default. (read: general slow GUI animations etc..). Switching to Radeon HD6750M results in very smooth GUI operation. Within SL the Intel HD3000 performs smooth. This can only conclude Lion is more GPU hungry compared to SL. A pity.
I would bet that it has little to do with Lion and everything to do with crappy Intel GPU drivers. In my experience, integrated Intel graphics drivers have sucked on every OS out there, from Windows NT to Linux to Mac OS.
 
I would bet that it has little to do with Lion and everything to do with crappy Intel GPU drivers. In my experience, integrated Intel graphics drivers have sucked on every OS out there, from Windows NT to Linux to Mac OS.

Except Apple writes all the drivers for their OS...
 
I would bet that it has little to do with Lion and everything to do with crappy Intel GPU drivers. In my experience, integrated Intel graphics drivers have sucked on every OS out there, from Windows NT to Linux to Mac OS.

It works very smooth within SL. But yes, I think the Intel GPU drivers aren't optimized yet for Lion.

BTW Intel 3000HD GPU is really fast though. Certainly one of the fastest onboard GPUs atm.
 
Still I can't use any remote access app to wake my comp like log me in phone view..Anybody tried?
Only way I could do that in SL was to have InsomniaX always running, but InsomniaX doesn't seem to work in Lion yet.
 
I really wish Apple would restore the ability to finely control brightness and sound using Shift+Alt+Sound/Brightness. I really rely on it in SL and it's really annoying that it's MIA in Lion.
 
Is the ability to hide the toolbar in fullscreen Safari gone for everybody else? (go to "view" at top menu, the top option "Hide Toolbar" is greyed out for me.)
It seems like this was fluctuating gone-and-back between each preview release. I'm sad to see it missing now in the GM.
 
Slow shut down times are killing me.

Had a more or less instant shut down on Snow Leopard and now it's taking 25-30 seconds to shut down on Lion.
 
MISSION CONTROL needs to die, this thing is useless. How does one manage windows with this thing it was bad enough under Snow Leopard. Minimised windows are a extremely painful to deal with.

Why have the user library hidden, this is causing me much frustration.

SO many other problems for me all in all Lion is a big set backwards for me.
 
I would bet that it has little to do with Lion and everything to do with crappy Intel GPU drivers. In my experience, integrated Intel graphics drivers have sucked on every OS out there, from Windows NT to Linux to Mac OS.

I dont know, Intel graphics have given me pretty smooth graphics with Windows 7. But with OS X, I notice a significant difference in smoothness between Intel graphics and the dedicated nvidia/ati graphics. I wonder if that's just because the drivers suck more on OS X than Windows (possibly because OS X is a smaller market or something?)
 
MISSION CONTROL needs to die, this thing is useless. How does one manage windows with this thing it was bad enough under Snow Leopard. Minimised windows are a extremely painful to deal with.

Why have the user library hidden, this is causing me much frustration.

SO many other problems for me all in all Lion is a big set backwards for me.

You can unhide the Library folder by using the terminal:
chflags nohidden /Users/<Username>/Library
 
After an all-night stint fixing my machine after I or Apple stuffed up the installation (thank the gods for Time Machine yet again) I have the GM up and running on my main PC.

2.4GHz C2D Alu MacBook with 9400M. Running sweet as a nut. No issues with graphics performance, everything is lightning quick. Did a clean install from a USB drive imaged with the Lion installer then restored from a Time Machine backup that goes back to 10.5

After a long time indexing and caching my Mail the system is now 100% responsive and working a treat.

Mail with over 28k messages is running very nicely indeed - no crashes so far. Hate the old version of Mail now, much prefer the layout of this one and the display of conversations is so much better than before.

Not so sure on Launchpad, it'll probably make good demo but that's about it. The full screen apps are great on the smaller screen, Safari and Mail probably won't transition to a 27" unlike iPhoto/Aperture/Final Cut etc will. But then, you don't buy a 27" iMac to run Mail full-screen do you?

Scrolling is nice and smooth, still getting my head around the reverse direction but they're right, give it a week, it does make more sense.

Two-finger swiping is working again in Safari. If you have your trackpad set to only two-finger scrolling for navigation however it doesn't work in Finder. So set it to "two or three" fingers and it all works very nicely. Two fingers to do the cool page slide thing in Safari, three fingers for an instant swipe forwards or backwards in every app.

Still waiting on updates to iTunes, iWork etc. to support full-screen, 10.5 beta does so it can't be too far off.

I'll see if anything turns up but after half a day of use I haven't bumped into anything yet.
 
Really hope an update to Aperture is coming soon to allow it to run in full screen!
 
Regarding the bad performance with Intel 3000HD onboard graphics:

It seems when you disable the Dashboard feature (can be done with iTweaX) the overall performance is much much better. Scrolling, rescaling, genie fx, ... are way smoother.
With Quartz Debug you can see it is about 30% faster! That is enormous.

I did the same test within SL and the difference is much smaller. QD says it is only 8% faster.

This makes me think the Dashboard is now more CPU/Memory hungry and/or not optimized for Lion.

I will fill this in as a bug at the developer program.
 
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