7.0.9 vs 7.0.10/7.1 Radeon 260X regression

7.0.9 vs 7.0.10/7.1 Radeon 260X regression

[Artur Chlebek]

Hi, I have 5x fps drop on amdgpu Radeon 260X 1GB between kernel 7.0.9 and
7.0.10 or 7.1rc

Original sparse mail got flagged as spam so let me elaborate:
Newest vanilla Fedora with Plasma, Gigabyte GA-H97-D3H, looked into things
like clocks, PM, ASPM, tried flags, GTTSIZE, .dc=0 - all seems fine nothing
helps.

Regards.

Re: 7.0.9 vs 7.0.10/7.1 Radeon 260X regression

[Greg KH]

On Sun, May 31, 2026 at 12:52:30PM +0200, Artur Chlebek wrote:
> Hi, I have 5x fps drop on amdgpu Radeon 260X 1GB between kernel 7.0.9 and
> 7.0.10 or 7.1rc
> 
> Original sparse mail got flagged as spam so let me elaborate:
> Newest vanilla Fedora with Plasma, Gigabyte GA-H97-D3H, looked into things
> like clocks, PM, ASPM, tried flags, GTTSIZE, .dc=0 - all seems fine nothing
> helps.

Can you use 'git bisect' to find the offending commit?

thanks,

greg k-h

RE: 7.0.9 vs 7.0.10/7.1 Radeon 260X regression

[Artur Chlebek]

-----Original Message-----
From: Greg KH <gregkh@linuxfoundation.org> 
Sent: Sunday, May 31, 2026 1:43 PM
To: Artur Chlebek <achlebek@poczta.fm>
Cc: amd-gfx@lists.freedesktop.org; regressions@lists.linux.dev;
stable@vger.kernel.org
Subject: Re: 7.0.9 vs 7.0.10/7.1 Radeon 260X regression

On Sun, May 31, 2026 at 12:52:30PM +0200, Artur Chlebek wrote:
>> Hi, I have 5x fps drop on amdgpu Radeon 260X 1GB between kernel 7.0.9 
>> and
>> 7.0.10 or 7.1rc
>> 
>> Original sparse mail got flagged as spam so let me elaborate:
>> Newest vanilla Fedora with Plasma, Gigabyte GA-H97-D3H, looked into 
>> things like clocks, PM, ASPM, tried flags, GTTSIZE, .dc=0 - all seems 
>> fine nothing helps.
> 
> Can you use 'git bisect' to find the offending commit?
> 
> thanks,
> 
> greg k-h

I'm sorry I'm not familiar with git at all, and very new to Linux. I can do
some local tests if led by hand...

RE: 7.0.9 vs 7.0.10/7.1 Radeon 260X regression

[Artur Chlebek]

-----Original Message-----
From: Greg KH <gregkh@linuxfoundation.org>
Sent: Sunday, May 31, 2026 1:43 PM
To: Artur Chlebek <achlebek@poczta.fm>
Cc: amd-gfx@lists.freedesktop.org; regressions@lists.linux.dev;
stable@vger.kernel.org
Subject: Re: 7.0.9 vs 7.0.10/7.1 Radeon 260X regression

On Sun, May 31, 2026 at 12:52:30PM +0200, Artur Chlebek wrote:
>> Hi, I have 5x fps drop on amdgpu Radeon 260X 1GB between kernel 7.0.9 
>> and
>> 7.0.10 or 7.1rc
>> 
>> Original sparse mail got flagged as spam so let me elaborate:
>> Newest vanilla Fedora with Plasma, Gigabyte GA-H97-D3H, looked into 
>> things like clocks, PM, ASPM, tried flags, GTTSIZE, .dc=0 - all seems 
>> fine nothing helps.
> 
> Can you use 'git bisect' to find the offending commit?
> 
> thanks,
> 
> greg k-h

I'm sorry I'm not familiar with git at all, and very new to Linux. I can do
some local tests if led by hand...

PS: I can confirm that 7.0.9-205 is 25fps in Unigine Heaven, and 7.0.10-200
(or 7.1 since beginning of rc availability) is 3-5fps.

7.0.9 vs 7.0.10/7.1 Radeon 260X regression

[Artur Chlebek]

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Hi, I have 5x fps drop on amdgpu Radeon 260X 1GB between kernel 7.0.9 and
7.0.10 or 7.1rc


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