Blank Screen on switching from nvidia to intel with ubuntu 16.04 on ASUS TUF FX504

I have recently installed nvidia-415 (415.27) from PPA.
OS: Ubuntu 16.04
System: ASUS TUF FX504 (gaming)
NVIDIA: Geforce 1050 ti
CPU: intel i5 8th gen

following are the observations:-

  • Nvidia mode works fine as I get output on nvidia-smi
  • On switching to Intel mode using NVIDIA-Xserver setting, I get blank screen just after logout and also after reboot.
  • On changing again to Nvidia mode using tty1 in recovery mode using prime-select nvidia everything works fine.

Why are some of my CQWPs coming back blank for Visitors?

I have a page with approx twenty CQWPs on them, all coming from the same library. It looks fine to me (Admin) but for the Visitor permission group, some boxes are coming up blank – no error message, just nothing! The header is still there and there is no error message. I’ve checked the library documents and there are no permission problems, and when I recreate one of the blank CQWPs (new web part with the same search parameters and display settings) the Visitor is still unable to see them. This does not appear to be a problem with web parts not set up with these settings. I’m at a loss! Grateful for any help.

Image of web parts showing 'blank' web parts as well as correctly showing webparts

Dual boot laptop having blank screen only when booting into ubuntu 18.04

This is a really peculiar case that I have, so I’m going to write out as many details as I could.

I use an asus laptop with graphic card nvidia 960m. I installed windows 10 in my ssd drive and ubuntu 18.04 in hdd, using grub to manage my booting options.

When I use windows 10 everything works fine. If I boot into ubuntu, use it and shut it down, then the next time I press the power button, the power button would light up, and the fans would start to rotate, but the screen wouldn’t show up anything, not even asus logo, let alone the grub. The same thing will happen again even if I force shutdown and press the power button again. I can’t even get into bios.

The temporary solution I found is very strange: When I shutdown ubuntu, I close my screen lid and open it up, then press the power button. This blank screen issue would be gone and the grub will show up, then after choosing the system I want to use I could boot successfully… this time. I have to force shutdown and perform the rather stupid solution every time I get this blank screen, but it just doesn’t happen when I shutdown from windows.

I have tried to purge and reinstall grub, purge and install nvidia driver 435, use nouveau.modeset=0, boot-repair. I still couldn’t solve the problem. So I’m not sure where the problem is. It might not be the graphic card driver that cause the problem at all, judging from the simple solution I found. Then again I couldn’t find the cause. The hardware might not be the problem because when I shutdown from windows 10 I wouldn’t get blank screen the next time I press the power button.

I hope there’s someone who can identify the problem. Thanks for reading this long post.

apptoken cannot be blank Xtremepush

Hola Estoy intentando conectarme a la API de XTREMEPUSH. El código de error en PHP :

stdClass Object ( [success] => [code] => 400 [message] => apptoken cannot be blank. ) 

A través del programa Postman , a través del body le mando el campo apptoken , y no tengo problema alguno , pero en PHP no se lo estoy mandando bien(Adjunto código que uso):

$  url = ''; $  ch = curl_init(); curl_setopt($  ch, CURLOPT_URL, $  url); curl_setopt($  ch, CURLOPT_POST, TRUE);  curl_setopt($  ch, CURLOPT_POSTFIELDS, array()); curl_setopt($  ch, CURLOPT_HTTPHEADER, array(             'Content-Type:application/json',             '**apptoken**: CODIGO-TOKEN'         ));  curl_setopt($  ch, CURLOPT_RETURNTRANSFER, true); $  result = curl_exec($  ch); if(curl_errno($  ch)) {     echo 'Curl error: ' . curl_error($  ch); } curl_close($  ch); print_r(json_decode($  result)); 

El código que me proporciona esta API es el siguiente:

curl -X POST -d '{"apptoken":"YOUR_APPTOKEN"}' 

Blank Purple Screen When Booting Into Ubuntu After Installation

im trying to dual boot ubuntu with windows 10 in my ASUS S430FN Laptop, the installation went right but after i rebooted and select to boot ubuntu, is goes blank purple screen, not even any ubuntu logo or any error messages.

i’ve tried anything like nomodeset, nouveau.modeset = 0, changing the quiet splash to no splash, changing the acpi to zero etc.

im using ASUS S430FN Laptop with intel i7-8565U, 8 gigs of ram, 512 SSD, NVIDIA Geforce MX150, and original windows 10 version 1903. im trying to install desktop ubuntu 19.04

can anyone help please