Dell Inspirion 7577

Lol no you didn't upset me, I didn't know if you were serious or not about going back to clevo because you can't disable optimus. Sadly I know of no work around to disable it or enable fast sync.

 

So due to my CPU throttling quite alot with Windows 10 freezing(Not as much as it used to be) Im gonna undervolt it using the Intel XTU.
I am curious to know what was the undervolting mileage yall got?

 

Anyone applied meltdown and spectre patch?
How much has the performance decreased?

Sent from my Z2 Plus using Tapatalk

 

I found a link that explain how to enable fast sync. it is said that any Maxwell or pascal GPU can enable it. It can be activated via nvidia control panel.
It doesn't say anything about optimus preventing the fast sync to activate.
https://beebom.com/what-is-nvidia-fast-sync-enable/

 

They didn't say Optimus prevents Fast-Sync because they didn't check

 

Wouldn't the internal screen have to support the tech for it to work (like G-Sync or FreeSync)? Or is fast sync just a fancy word for V-Sync? If it's just V-Sync, you could use something like Rivatuner to cap your fps. For me (on my older computer, not a 7577) it worked better than most internal V-Sync solutions.

Doing some Googling on Fast-Sync, it sounds like it just selectively drops frames once you pass your monitor's refresh rate, thus eliminating screen tearing but maintaining a lower input lag. Unless you are a competive gamer playing twitch shooters, I'm not sure if the difference would be noticeable vs regular v-sync or something like Rivatuner.

Alternatively, if you were playing on an external monitor through the HDMI, it should bypass Optimus completely. Would the Fast Sync work then? I don't see why not unless Nvidia has hard locked the feature completely.

 

Bold for correct and well said! I'm a 144hz gamer and I can tell FPS withing 10 FPS, anything between 30Hz and 120Hz so it matters to me. It's a blessing and a curse. Connecting this unit via HDMI to an external monitor does not bypass this. I have tried. It seems it's about how the monitor is physically connected to the source and it pipes into the iGPU directly, then channels into the dGPU. The only way to allow Fast-Sync on an Optimus equipped laptop is to have a built-in MUX switch. This will allow software or ultimately BIOS level switching between integrated and dedicated graphics.

 

Huh. I'm seeing people report the opposite - that an HDMI connected monitor is only driven by the dedicated card. They can't even pull up the Intel Video settings menu (when you right click) when on the second monitor. Supposedly this is done intentionally for gaming and VR purposes. I've also seen some people report that disabling the internal monitor and only using the external works as well...effectively disabling the iGPU. Not sure if this applies to Fast Sync though.

https://www.dell.com/community/Gene...y-Nvidia-Intel-igpu-Do-Not-detect/m-p/5176059

Would be really disappointing if there are issues regarding the HDMI. I have heard that Optimus causes problems when using the Oculus Rift...but I have also heard (in this thread) that the Oculus works perfectly fine.

 

i m getting stutter delay when right click on the desktop when i m trying to refresh, its very annoying. anyone geting the same problem with this issues??

and how to disable trackpad ?? I don't find any trackpad disable on keyboard lol.

 

Already mentioned a few times, it is a bug and not fixed yet.

 

so all dell 7577 equip with nvme toshiba 256gb and sodimm micron ddr4 2400mhz ? or its just me ?

anyone get samsung NVME and DDR4 samsung ?

 

Please do a quick search for "stuttering" in this thread. It is an Optimus error.

 

I have. I got my chance to do this and for no reason other than the meltdown/spectre patch, its been slowing down my PC. CPU has been hotter and the process is constantly being throttled. I used to have mouse pointers and Windows 10 freezing every 20-30 seconds after the patch was applied. The performance did take a hit in this one IMO. But ive found that undervolting(Im at -110mv) the 7577 has really improved.
In addition to that, there was a poster earlier that said disabling virtualization in the BIOS also helps manage heat. Im gonna try it.

 

I've both Toshiba and Samsung NVMe drives in my 7577s but micron or hynix ram.

 

i got the toshiba for the SSD and the micron for sodimm.

and this toshiba KXG50ZNV NVMe is very bad, i m using crystal disk mark and the result was its just 380mbps for the write speed, mean while the read speed was very fast its around 2.700mbps
maybe the SSD have some issues ? how about the samsung one ?

 

The Toshiba is known be a slow NVMe drive. You can try to install the toshiba nvme driver and ensure it's got the most up to date firmware but that's about it. The Samsung PM961 that I got in mine was fast. In all honesty I can't tell a difference in day to day use between the two.

 

Mine came with a Sandisk X400 m.2.

 

Theremis no speed difference between different SSDs in real life, not even between Msata and NVME. Game loading takes the same time, there was a big test in a well known German IT Newspaper.

 

Okay guys and dudettes. I need ya help again. I cant figure for the love of all god why my laptop continues to have random freeze. I keep looking up online. I updated all drivers and the BIOS and while the BIOS did improve. It still there time from time. I didnt have this problem with a 7567 I had weeks ago. Ive undervolted and disabled Intel Virtualization. These improved. But theres stuttering and freezing. Im thinking of doing a clean reinstall of windows. Will that help and if so, will it void my warranty?

 

Hi everyone. I just join the family of 7577 with i5 + 1060 MAXQ
But I feel little bit regret and upset that I can't replace my screen with 4K because of just found the eDP cable come with 30pin not 40pin on my 7577 before I read this post.
I have bought a AUO-B156ZAN02.3 but it is 40pin
Could 4K screen owner provide the model of 40pin EDP cable please?
the label should be printed on the cable at the panel side.
Maybe I can find it on internet then replace the 30pin one.

 

Actually Toshiba one is pretty good I thing. (But no doubt that PM961 is better )
It's huge faster than any SATA TLC SSD at least .
Even better than intel 600p & WD Black PCIe SSD.
But you have to clean install Win 10 with AHCI mode rather than RAID mode to get the maximum performance
(I don't know why Dell set it to RAID mode for default in BIOS )

Anyway I have change it to SAMSUNG 960 PRO 512GB because 256GB is not enough for me.
I also post the benchmark at last for 960 so you may see the different between Toshiba NVMe and SAMSUNG NVMe High-End model
Then you will find that Toshiba is not that bad

Before clean install (Stock OS):

Sequential Read (Q= 32,T= 1) 2789.361 MBs
Sequential Write (Q= 32,T= 1) 349.160 MBs
Random Read 4KiB (Q= 8,T= 8) 637.475 MBs [ 155633.5 IOPS]
Random Write 4KiB (Q= 8,T= 8) 352.321 MBs [ 86015.9 IOPS]
Random Read 4KiB (Q= 32,T= 1) 392.098 MBs [ 95727.1 IOPS]
Random Write 4KiB (Q= 32,T= 1) 332.529 MBs [ 81183.8 IOPS]
Random Read 4KiB (Q= 1,T= 1) 42.418 MBs [ 10356.0 IOPS]
Random Write 4KiB (Q= 1,T= 1) 132.902 MBs [ 32446.8 IOPS]

After clean install (Win10 1709):

Sequential Read (Q= 32,T= 1) : 2829.574 MB/s
Sequential Write (Q= 32,T= 1) : 1076.949 MB/s
Random Read 4KiB (Q= 8,T= 8) : 763.899 MB/s [ 186498.8 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 931.459 MB/s [ 227407.0 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 552.833 MB/s [ 134969.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 465.409 MB/s [ 113625.2 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 48.855 MB/s [ 11927.5 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 138.038 MB/s [ 33700.7 IOPS]

After clean install with SAMSUNG 960 PRO 512GB(Win10 1709): (I saw better result for Random 4KiB (Q= 8,T= 8) in this post but I forgot which page)

Sequential Read (Q= 32,T= 1) : 3465.207 MB/s
Sequential Write (Q= 32,T= 1) : 2102.593 MB/s
Random Read 4KiB (Q= 8,T= 8) : 1288.934 MB/s [ 314681.2 IOPS]
Random Write 4KiB (Q= 8,T= 8) : 1060.992 MB/s [ 259031.3 IOPS]
Random Read 4KiB (Q= 32,T= 1) : 554.283 MB/s [ 135323.0 IOPS]
Random Write 4KiB (Q= 32,T= 1) : 433.893 MB/s [ 105930.9 IOPS]
Random Read 4KiB (Q= 1,T= 1) : 51.691 MB/s [ 12619.9 IOPS]
Random Write 4KiB (Q= 1,T= 1) : 138.476 MB/s [ 33807.6 IOPS]

 

Alright, I had it enough with the freezing and stuttering in the 7577. So I went and returned it for full refund. I may try and get a i7 model. But Im afraid to do so. Would it be worth if I tried again?

 

My 7700 hq 4k solution is actually doing a bit of this is too. I thought it wasn’t Optimus causing the issue.

 

The guy who helped me at Costco said that there is a particular issue regarding my model and theyve been getting alot of returns regarding this models.

 

Interesting. What about your particular model that sets it apart from the rest? This will help me direct this information to others as needed.

 

It was i5-7300HQ model with 256 gb SSD. It was stated that way before he tried directing me to technical support. I noped outta there and refunded it. I wasnt gonna keep something that had alot of issue regarding the model. The bad news for me is I have costco money and that means the laptop has to come from Costco:\

 

It's Nvidia and Microsoft's issue, not dell... The optimus bug is pretty notorious but there are only work arounds right now.

 

I wished I had known about the issues regarding Optimus and the bug. If there was a work around for that, I would liked to keep my current laptop . It was only $800
Anyway, Im gonna try again with the Dell, only with the i7 version

 

Yeah I hate that Nvidia says's it's a MS issue and MS says it's an Nvidia issue. If you search for optimus idle lag you can find a ton of info about it.

 

Would that solve the freezing/stuttering issue Ive been having with the i5-7300HQ. I really wished this came up sooner for me

 

There is no solution to it besides using an older driver. There are some other work-a-rounds but nothing official.

 

Oh god. Please dont tell me that when I get this model again, there'll be stuttering/freezing? Because I didnt get that one for damn sure on my previous 7567

 

http://webcache.googleusercontent.c...p/f/3519/t/20025355+&cd=1&hl=pl&ct=clnk&gl=ie

this really helps? mine i7 16gb 256gb 1TbHD on the way ooo my...

 

Same here. Had to reorder again from Costco. The only issue was they didnt have the base model with 256 ssd gb. So i had to up the thing and get a i7-7700HQ/16gb ram model. My only hope is that it comes just working fine.

 

it will work as with any other one its a global issue
Intel looking into it as well:
https://communities.intel.com/thread/119093?start=90&tstart=11

 

they said it should help forcing dGPU? to be on top all the time using developed app:
https://github.com/jobeid/TrayPwrD3/blob/master/executable/TrayPwrD3.7z

 

Probably a shot in the dark, but has anyone tried overclocking the screen on the 4k model (at 1080P resolution obviously). I've decided on buying this laptop and am debating between replacing the base screen with the 120hz TN panel screen mentioned previously here, or ordering the 4k screen. Can the 4k go above 60hz at 1080p?

 

Okay. My Dell 7577 with i7-7700HQ, 16gb of RAM, 128gb SSD+1tb of HDD and gt 1060 MAXQ is coming in overnight from Costco. My plan is to actually gut the entire OS and do a clean reinstall. And than undervolt the thing. Hopefully, that'll stop the freezing/stuttering issues I had. That and not applying the Intel meltdown and spectre patch should help.

 

I'm not sure it's possible since the "Change resolution" option is not available in the Nvidia options on Optimus equipped laptops.

 

You have to change it in the Windows setting. Always.

 

I've always done it this way.

 

I've always just used custom resolution utility and changed it in the Intel graphics control panel. I have a Nvidia 740M (w/optimus) laptop that overclocks to about 80Hz with custom timings.

 

I forgot about CRU! I spent some time attempting to OC this 4k panel and even at 75Hz, no such luck.

 

I got my 7577 and its working great as ever. My guess to that is that the Meltdown/Spectre bug did really hampered my original 7577 to the point where I returned it.
On the other hand, im curious if doing a clean reinstall of the windows 10 will void the warranty?

 

Nope, install away

 

Been following this thread since last night when i noticed Fifa 18 stuttering like crazy on my new 1200 CAD laptop..

@FireLantern you have been thankfully the most vocal and helpful guy as well in the whole thread regarding this issue. Can you please tell me how to fix this issue? I am okay with windows lagging a bit in the meanwhile but i want the laptop to atleast perform its primary function - that is to game smoothly.

Something i noticed was that if we use GeForce Experience to update the drivers or even use it to "optimize" the game. It screws up the drivers and the games straight up start using Intel HD. However, i did a windows reset and it at least helped mitigating that issue. I know this post is a total ramble but lets start discussing these issues so we can all find solutions to them together.

Issues:

1) Games stuttering
2) GeForce Experience messing up the whole GPU drivers
3) Games switching to Intel HD graphics when on battery even if you dont use GeForce Experience
4) Audio stuttering when taking the battery plug out
5) Random audio stuttering
6) Windows lagging and explorer taking time to open up

 

How did the meltdown bug impact you?

 

Stuttering on battery might be a thing in games, due to the lowered frequencies. Gaming on battery isn't really possible. Forget about Geforce Experience. You can change which gpu should be used for every program in the Nvidia settings (right click desktop).

 

Are you sure? Because theoretically, gaming should be possible on battery albeit with shortened times.

 

Well, I FINALLY got my replacement laptop from Dell as my original 7577 has a buzzing speaker!

So, this one is perfect in every way except that the bezel round the screen doesn't sit flush with the screen at the bottom?! It does in some places, but comes out from the screen in others. I can push it flush with the screen, but then it will pop out further along lol

It's not a major issue in all honesty, as its only at the bottom but was jst wondering if this is "normal" or if anyone elses is like this?

On a positive note, I took the laptop into our black room at work and booted it up, and the display itself is PERFECT. Not a single bit of bleed or clouding anywhere!