I have processor with gpu i7 4790k. Could be why on Zorin Pro sometimes i have black screen? In bios i have off. Screen i have from PCI-Express 3.0 that's means this could be a problem processor Intel some "virus" a spectre or meltdown???
Done, I already installed Zorin Os in UEFI and a few things changed, animations are smoother, video performance improved, and the system feels more stable overall (y ahora ves el logotipo de mi fabricante junto al de Zorin al Arrancar )
But the screen still flickers on boot and my PC still writes dots if I put it in Hibernate
Actually, it is not just mods who can see it. Anyone can, even people who does not have an account can see it. Which actually makes me feel confused. If others can still see your post, then why is it termed as "delete this post" ?
"For the record" as we say.
I usually do not bother to see the deleted content.
But in this case what @Bourne said in the second message was contradictory to his first. Hence, I brought it up. Otherwise, my reply to his first posing makes no sense.
I wouldn't consider the flickering screen to be a severe problem as long as it happens only during the splash screen and there are no other screen problems....The "period key" problem is a bit more concerning.....
I suspect a hardware issue, if not a BIOS issue.
If the laptop is no longer in warranty and @Jesusito does not mind to open it, checking the internal cable connection might help.
It can't be a hardware issue either, @Jesusito mentioned in a previous topic that they tried other non-Ubuntu distros and Windows but they did not encounter the problem there. See here....
Right, I forgot that.
Then the BIOS/firmware issue is the only thing I can think of.
I remembered that I had to flash the firmware of my Logitech Trackpad (in Windows!) before I could enable its tap to click function in Linux. Since that experience, I always have one bare metal Windows for a firmware update purpose.
Other than that - I have absolutely no idea.
I've never seen such thing in my system integration experience which spans for 2 decades and half.