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[ SOLVED ] Graphical tearing upon install

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Graphical tearing upon install
« on: July 05, 2021, 10:12:21 AM »
 

Berrycloth

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Hi all,
Apologies if this is something that is covered somewhere - if it is, please point me towards it. I'm fairly new to Linux. Installed Linux on my HP Stream 14 (fairly bad laptop so looking to breathe some new life into it lol)

Performed a clean install of Linux lite 5.4 and was greeted by this upon login. Before login it's completely fine. Install was fine too. Booting off USB has the same result and for some reason it won't let me into safe mode, it just hangs.
Last Edit: July 18, 2021, 03:30:47 PM by Jerry
 


Re: Graphical tearing upon install
« Reply #1 on: July 05, 2021, 03:33:18 PM »
 

Jerry

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Do you have a spare monitor you can plug into the laptop at boot up? If so, you can use the good resolution on the monitor to set a usable resolution on the laptop.
 

Re: Graphical tearing upon install
« Reply #2 on: July 06, 2021, 10:37:16 AM »
 

TheDead

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  I don't know it you have access to the boot parameters (avanced menu or edit) it in boot menu but found this :

 Re: Linux Kernel 5.0 and 5.2 screen corruption and tearing
Using the kernel boot param "iommu=soft" fixes both screen corruption issue and suspend/resume.
From here :https://community.amd.com/t5/drivers-software/linux-kernel-5-2-screen-corruption-and-tearing/m-p/412713#M132497
- TheDead (TheUxNo0b)

If my blabbering was helpful, please click my [Thank] link.
 

Re: Graphical tearing upon install
« Reply #3 on: July 06, 2021, 05:51:54 PM »
 

Berrycloth

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  • VIDEO CARD: AMD A4-9125

  • Kernel: 5.x
Do you have a spare monitor you can plug into the laptop at boot up? If so, you can use the good resolution on the monitor to set a usable resolution on the laptop.

The joke is, upon plugging in the laptop to the screen. Both screens are absolutely fine! There aren't any drivers to install, but the screen immediately goes back to before when restarted.

I've tried messing around with resolutions to no avail. I don't know what about screen mirroring is changing this.
 

Re: Graphical tearing upon install
« Reply #4 on: July 06, 2021, 07:26:43 PM »
 

Jerry

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After installing LL, are you setting the res. on the laptop to a viewable setting and disabling the other monitor from turning on?
 

Re: Graphical tearing upon install
« Reply #5 on: July 18, 2021, 12:27:48 PM »
 

Berrycloth

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THAT FIXED IT! thank you so much   :bow
 


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