Latitude 7390 2-in-1 Drivers

[Margarita Lovvorn]

The screen rotation function in my laptop Dell Latitude 7390 2-in-1 is not working when the laptop is bent beyond 180 degrees. The keyboard stays on and is only turned off when the computer is bent completely.

Update?: Apparently the reinstallation eventually helped, but not immediately, although I restarted the device multiple times the rotation feature only worked the next day and the problem was finally solved!!

I've been trying to fix the Sleep issues for several hours/days without success so far. I'm starting to think there is no solution. There are a lot of old posts about older Linux kernels and Ubuntu versions. But not a lot of info for 20.04.

The laptop can sleep fine in Windows 10. I've been using it for a year. (I have the latest BIOS installed SSD firmware as well). The only issue I faced in Windows 10 is that I can only use DELL Intel HD graphic drivers. If I try to install the Intel generic DCH drivers, it install fine, but after a reboot I have a frozen screen in Windows login. (Even after a Windows 10 clean install I have to install Dell GPU driver before my first restart, otherwise problem). I'm not sure if this is related. But just so you know that this Dell laptop requires their own Dell drivers in Windows to work properly.

Issue: When I press "Suspend" option. Sometimes it works and PC suspends in 2-6 seconds. Sometimes doesn't work, Screen instantly goes black, the Keyboard is still with lights and the power led remains on. When this happens, I noticed that after a while, PC shutdowns and Ubuntu boots again from scratch.

From TTY "systemctl suspend" works better (it suspends almost always in less than a minute and power led goes off). Also tried leaving the PC suspended the whole night and turned back on fine. But if I open a YouTube Video, switch to TTY and call a suspend, it seems i end up with a failed suspend like always.

So If I try Suspend, while running a process or audio, suspend doesn't work (I play some video with audio to quickly know if the PC crashed or if the PC is still OK. If the audio goes crazy in a short loop I assume it crashed).

4) "Lock" function doesn't work anymore. Every time I wake up the PC or every time I press < Start + L > hotkey. The laptop reloads the desktop UI without locking the screen (Like in point 3). I tried to fix this issue and installed some stuff like gnome-screensaver, some unity tools, but then something broke suspend again. (After a reboot managed to fix suspend again) --> DMESG add lines like this (with different stuff) everytime I try to "Lock":

And lastly, I tried to remove the flag I added "snd_hda_intel.dmic_detect=0" and suspends still works. So I don't know exactly if this flag fixed suspend issues (and broke the "Lock" function). I'm sorry about this.

Just like sebastianer, I upgraded my laptop to latest Pop!_OS 20.04 at first time. Just realize the laptop freeze after I leave it almost hours (the power button still on, when it should be already on suspend) with blank screen, try hit the power button and press some key didn't work, so I need to force shutdown by long pressing the power button.

The second time, the laptop charging led blinking 2 times in amber and 1 time in white not long after the laptop going into lock state. According to Latitude 7390 manual, this mean something wrong with the processor. This happen too when I installing Ubuntu 18.04.4 and Ubuntu 20.04. This only happen in latest Ubuntu but not another distro.

Try to touch the processor side under the laptop after hung, but not feel hot. So I assume there must be something in the processor that can't run correctly under new (kernel?) in Ubuntu. Ah and I have an custom AMD APU PC with ASUS motherboard that have same problem, but seems like appear not often. But my other laptop (ThinkPad E540 and Vostro V131) are run smoothly without any problem.

The problem is on the locking state not the suspend. Because somehow I can doing suspend and wake it up normally, but not when locking the system. Just try disable the lock and going to suspend, or just click the suspend button or run sudo systemctl suspend.

Seems like the Intel Speed Shift Technology, TPM, and Intel software Guard Extensions have problem with the new kernel. Maybe there still need a tweak in the driver side, a conflict with the P-State, or the combination all of it, idk. But after I disable all of it, my laptop work smoothly using Ubuntu 20.04 and Pop!_OS 20.04.

After using almost a weeks or more, seems like my laptop fine but, then I need TPM due to app I made, so I enable all feature that I already disabled before in the BIOS. Then my system back to crash. But the strange things is even I revert it back to disable, it keep crashing after lock, going to CPU Failure. After googling looking for the right answer what happen with my CPU, then I found this and this articles.

in my GRUB kernel parameter. Seems like it was the correct settings to make my Latitude 7390 laptop able to lock and/or suspend without CPU Failure and enable again the Intel Speed Shift Technology, TPM, and Trusted Execution .

Dell Latitude 7390 2-in-1 drivers will help to eliminate failures and correct errors in your device's operation. Download Dell Latitude 7390 2-in-1 drivers for different OS Windows versions (32 and 64 bit). After you have downloaded the archive with Dell Latitude 7390 2-in-1 driver, unpack the file in any folder and run it.

Build quality is otherwise great and Dell claims that machine is MIL-SPEC 810G-tested to survive extreme temperatures, dust, shocks and vibrations, so it should have no issues when it comes to durability.

As with other 2-in-1 devices, the display hinge on the Dell Latitude 7390 rotates back 360-degrees to allow the notebook to be used as a tablet. 13-inches, to me, seems to be an ideal size for both notebook and tablet work and the Latitude 7390 is no exception here. The hinge in itself is sturdy enough to hold the display in any position you would want it to be in.

Dell managed to fit in a full-size number row and also ensured that the arrow keys are wider than what you would expect in a laptop this size. The key themselves are tactile and feel great to use. If you are used to a full-sized desktop keyboard though, typing fast will be an issue for a while because of the smaller size.

As far as ports are concerned, on the left edge of the Latitude 7390, we find two USB Type-C (Thunderbolt-3 compliant) ports, a full-size HDMI 1.4 output, a USB 3.0 Type-A and a Smart Card slot for security.

The right side provides a Noble Wedge lock slot, another USB 3.0 Type-A port, micro-SD and micro-SIM card slots and a 3.5 mm headphone jack, along with a volume rocker and power button, which keeps them accessible even while in tablet mode.

For office use, the laptop handled everything I could throw at it and with relative ease. The 8th gen Intel i7 8650U quad-core CPU is a powerful chip and perhaps even overkill for what I expect the average business user needs. Nothing slowed it down, and the fast SSD just made things all the more pleasurable.

Our heavier PCMark 8 Battery Life test returned an estimate of 3 hours and 27 minutes. This is fairly standard for a laptop with a 65 Wh battery inside. Considering the laptop is meant for working on-the-go, I was expecting better battery life.

Even if your work schedule can't be flexible, your computer should be. Dell's newest business laptop, the Latitude 5289 2-in-1, takes that mantra literally with the ability to flip into a tablet. Its 10-hour battery life means it can last all day, and, if you're security-conscious, there are several optional features available to protect your data. The display isn't terribly vivid, and it can run on the hot side, but its performance and port selection will help you power through your day.

Dell isn't exactly re-inventing the wheel here. The Latitude looks like every business notebook the company has released in recent memory, with a soft-touch black lid and a silver Dell logo. Under the lid is the 12.5-inch, 1920 x 1080 touch display surrounded by a thick bezel, especially on top (likely to make room for the infrared camera). There's also a backlit, island-style keyboard, soft-touch deck and two 360-degree hinges. The hinges allow for the Latitude to be used in four modes: laptop, tablet, tent or stand (with the keyboard face down and the display pointing up).

For such a small machine, it has a strong, varied selection of ports. The left side is where you'll find a pair of USB Type-C ports with DisplayPort capability (one of which will be taken up while charging), an HDMI output and a USB 3.0 port. On the right are a headphone jack, microSD card slot, another USB 3.0 port and a Noble lock slot.

Dell sells the Latitude with a number of optional security features to keep your workplace data safe. For $21, you can get a model with a Smart Card reader, while $35 gets you that, a fingerprint reader and NFC capability. Models with Intel's Core i5-7300U and Core i7-7600U CPUs include vPro for remote management. All of them include TPM to securely store biometric data.

The 12.5-inch, FHD display on the Latitude is serviceable for text, but it's not exactly colorful. When I watched a 1080p trailer for Thor: Ragnarok, the Hulk's skin wasn't as viridescent as I expected and the red in Thor's cape was a bit too dark. It's sharp, though, and I could see small pieces of rubble flying in slow-mo as Hela attacked Asgard.

Dell's panel covers just 71 percent of the sRGB color gamut, falling short of the ultraportable average (a much more vivid 96 percent) and the EliteBook (a superb 109 percent). The ThinkPad Yoga's screen was less colorful at 69 percent.

I had a mixed experience with the Latitude's keyboard. On the 10fastfingers.com typing test, I reached 106 words per minute with a 3 percent error rate (just under my 107-wpm average and slightly less accurate than my usual 2 percent error rate). It's not uncomfortable, but it's springier than the clicky keys I tend to prefer. There's also a bit of a dip from the palm rest to get used to, but nothing crazy.

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