[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread Noah Davis
https://bugs.kde.org/show_bug.cgi?id=479630

--- Comment #7 from Noah Davis  ---
(In reply to vxs2005 from comment #6)
> @Noah Davis
> I noticed that even when my screen has noise on it, if I use screen
> recording the noise doesn't appear in the recording. Would this indicate
> that it's a display problem rather than a graphics card problem? I'm not too
> familiar with hardware, but I would assume if the noise was happening on the
> GPU then it would also appear in the screen recording.

I'm not a graphics technology expert, so I couldn't say exactly what things
like drivers or firmware affect, but it indicates that everything is OK on the
software side (the part that generates graphics before it is sent to hardware
to be displayed).

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=479630

--- Comment #6 from vxs2...@yahoo.com ---
@Noah Davis
I noticed that even when my screen has noise on it, if I use screen recording
the noise doesn't appear in the recording. Would this indicate that it's a
display problem rather than a graphics card problem? I'm not too familiar with
hardware, but I would assume if the noise was happening on the GPU then it
would also appear in the screen recording.

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=479630

--- Comment #5 from vxs2...@yahoo.com ---
After another few hours have gone by the flickering effect on my screen is
completely gone. 

To test if overheating was the issue I ran both CPU-Z and Heaven Benchmark at
the same time and kept track of temperature using Core Temp. At first my temp
jumped to 71C and then both the CPU and GPU started thermal throttling and the
temperature wouldn't go any higher. So I went into my bios and put my laptop
into "extreme performance" mode and did the same process over again. This time
the temperature settled at 81C without thermal throttling. But I wanted to see
if it would glitch if I got it even hotter so I covered my laptop's air vent
with a piece of cloth and then temperature crept up to 100C and after it
reached 100C it started thermal throttling again. But despite reaching 100C no
graphical anomalies occured and my laptop is functioning normally.

https://github.com/vExcess/files/blob/main/100C.png

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread Noah Davis
https://bugs.kde.org/show_bug.cgi?id=479630

Noah Davis  changed:

   What|Removed |Added

 CC||noaha...@gmail.com

--- Comment #4 from Noah Davis  ---
(In reply to vxs2005 from comment #2)
> My laptop is an IdeaPad 5 Pro 16ACH6 with the following specs
> https://psref.lenovo.com/Product/IdeaPad/IdeaPad_5_Pro_16ACH6
> 
> Processor: AMD Ryzen 5 5600H
> Graphics: AMD Radeon Graphics (integrated graphics)
> Memory: 8GB soldered memory (DDR4-3200)
> Display: 16" 2.5K (2560x1600) IPS 60Hz
> 
> I doubt it was a heat issue though. If I had to guess AMD's drivers probably
> are buggy and KDE Plasma did something that triggered the bug. I have
> encountered driver bugs with AMD in the past such as this one
> https://bugs.chromium.org/p/chromium/issues/detail?id=1463267 which AMD said
> that they will have fixed in their January driver update (this month). 
> 
> After letting my laptop sit overnight the vertical and horizontal lines are
> gone, however the display is still flickery. However it is less flickery
> than it was yesterday. Its doing a pattern of flickering in quick succession
> for 1 second, stops flickering for half a second, and then flickering in
> quick succession for a second again. So I'm hoping this means it will
> continue to go more back to normal over time. I've been using this laptop
> for 2 years and have never had this problem before. I would try installing
> Kubuntu again to see if this is a replicable behavior, but I since the lines
> are gone and flickering lessened my laptop is kinda usable again and I don't
> want to risk breaking it more.

Hi, I'm the colleague he spoke about. I have a different laptop from you
(Eluktronics THINN 15 with Ryzen 7 4800H), but this sounds just like what I
experienced. For a long time my laptop was fine, but then one day temperatures
around 80C started causing my display to go black or flicker rapidly. As the
laptop cooled down, the flickering slowed and the flickering would appear as
noise on the screen just like in your pictures until it finally went back to
normal. 80C isn't particularly cool, nor is it what I'd consider overheating.
It's normal when the CPU and/or GPU is working hard, but it must have been too
much for the cable near the heat pipe after using my laptop for CPU intensive
work for 2 years (you also said you had your laptop for 2 years). This doesn't
mean that 80C is your laptop's threshold for triggering the issue, I'm just
saying your issue sounds similar to my issue. Ultimately, sending my laptop to
the manufacturer to get it repaired completely fixed the issue.

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread Nate Graham
https://bugs.kde.org/show_bug.cgi?id=479630

--- Comment #3 from Nate Graham  ---
Ok, so not the same hardware. However I'm still not super surprised given that
IdeaPad is Lenovo's budget line which is not known for its high build or
cooling quality. My last IdeaPad did not survive for long which put me off the
whole product line, and now I only buy ThinkPads which last much longer. Since
the problem has gotten better overnight, I do still suspect a hardware issue
related to heat buildup. But you'd be better off contacting Lenovo I
think--especially since you said the issue also happens in Windows.

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread Nicolas Fella
https://bugs.kde.org/show_bug.cgi?id=479630

Nicolas Fella  changed:

   What|Removed |Added

   Severity|critical|normal
 CC||nicolas.fe...@gmx.de

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread bugzilla_noreply
https://bugs.kde.org/show_bug.cgi?id=479630

--- Comment #2 from vxs2...@yahoo.com ---
My laptop is an IdeaPad 5 Pro 16ACH6 with the following specs
https://psref.lenovo.com/Product/IdeaPad/IdeaPad_5_Pro_16ACH6

Processor: AMD Ryzen 5 5600H
Graphics: AMD Radeon Graphics (integrated graphics)
Memory: 8GB soldered memory (DDR4-3200)
Display: 16" 2.5K (2560x1600) IPS 60Hz

I doubt it was a heat issue though. If I had to guess AMD's drivers probably
are buggy and KDE Plasma did something that triggered the bug. I have
encountered driver bugs with AMD in the past such as this one
https://bugs.chromium.org/p/chromium/issues/detail?id=1463267 which AMD said
that they will have fixed in their January driver update (this month). 

After letting my laptop sit overnight the vertical and horizontal lines are
gone, however the display is still flickery. However it is less flickery than
it was yesterday. Its doing a pattern of flickering in quick succession for 1
second, stops flickering for half a second, and then flickering in quick
succession for a second again. So I'm hoping this means it will continue to go
more back to normal over time. I've been using this laptop for 2 years and have
never had this problem before. I would try installing Kubuntu again to see if
this is a replicable behavior, but I since the lines are gone and flickering
lessened my laptop is kinda usable again and I don't want to risk breaking it
more.

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[KScreen] [Bug 479630] Changing display resolution fries AMD graphics card on Kubuntu

2024-01-11 Thread Nate Graham
https://bugs.kde.org/show_bug.cgi?id=479630

Nate Graham  changed:

   What|Removed |Added

 CC||n...@kde.org
 Resolution|--- |DOWNSTREAM
 Status|REPORTED|RESOLVED

--- Comment #1 from Nate Graham  ---
It does sound like there may be a hardware issue here, but it's not possible
for changing the resolution to trigger that issue. Likely it's a coincidence or
simply the proximate cause rather the root cause, and instead what happened was
that the hardware became damaged in another way--e.g. due to excessive heat
buildup near the GPU caused by insufficient cooling performance. Either way it
sounds like you need to contact the vendor for support.

Out of curiosity, could you share a link to the laptop itself? I ask because it
sounds like the issue is similar to an issue a colleague of mine had which was
ultimately traced to a hardware design flaw (GPU cable too close to internal
heat pipe) and if you've got the same laptop, I'm willing to bet you're
suffering from the consequences of the same design flaw.

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