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Screen & system freezing problems / fresh install?

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dx486
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Screen & system freezing problems / fresh install?

#1 Post by dx486 »

I have been happily using debian 9 stable on my notebook following "don't break debian" advices but I have some issues recently. It freezes from time to time especially when playing mkv files. This is a hard freeze, no keys work, I have to hard reset my computer. Secondly, screen sometimes (randomly) moves horizontally very fast, but it is hard to describe / explain this problem. It seems to happen randomly. --- Edit: I noticed that this screen "flashing" problem happens when I press a key when there is a video on the screen, in browser or in video player.

This is a notebook with Intel graphics. No external GPU.

Question 1: Could you please help me diagnose & solve such problems?

Question 2: I might consider making a fresh start with installing/resetting debian 9.3 to its original state, keeping my current files & settings in my home. What is the practical way to do that, considering that this is a dual-boot system with Win 10, with separate /home partition and encrypted root, home and swap partitions?

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None1975
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Re: Screen & system freezing problems / fresh install?

#2 Post by None1975 »

Hello. Please, post your hardware spec. Maybe you are affected by this bug.
OS: Debian 12.4 Bookworm / DE: Enlightenment
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debiman
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Re: Screen & system freezing problems / fresh install?

#3 Post by debiman »

output of

Code: Select all

lspci -k | grep -iEA5 'vga|3d|display'
uname -rv
please.

Wheelerof4te
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Re: Screen & system freezing problems / fresh install?

#4 Post by Wheelerof4te »

None1975 is right, it sounds like that bug. I was affected by it too, see this thread for possible workarounds:
http://forums.debian.net/viewtopic.php?f=5&t=135567

dx486
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Re: Screen & system freezing problems / fresh install?

#5 Post by dx486 »

Code: Select all

$ lspci -k | grep -iEA5 'vga|3d|display'
00:02.0 VGA compatible controller: Intel Corporation HD Graphics 5500 (rev 09)
	Subsystem: Toshiba America Info Systems HD Graphics 5500
	Kernel driver in use: i915
	Kernel modules: i915
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
	Subsystem: Toshiba America Info Systems Broadwell-U Audio Controller

Code: Select all

$ uname -rv
4.9.0-4-amd64 #1 SMP Debian 4.9.65-3 (2017-12-03)
After reading your helpful replies, I have selected an older kernel from GRUB menu. I made a few tests and now the problem seems gone. Current output of "uname -rv" is :

Code: Select all

$ uname -rv
4.9.0-3-amd64 #1 SMP Debian 4.9.30-2+deb9u5 (2017-09-19)

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Re: Screen & system freezing problems / fresh install?

#6 Post by Bulkley »

Screen & system freezing is often an hardware problem. It is typically triggered by intensive video use. Check for over heating, etc.

The posts above about a known bug are worth following up.

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Re: Screen & system freezing problems / fresh install?

#7 Post by stevepusser »

But using that older kernel will expose you to known security holes, including Meltdown.
MX Linux packager and developer

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