Re: chromium flickering rectangle corruption (with workaround)

On Thursday, January 1st, 2026 at 7:48 AM, David Brownlee <[email protected]> wrote:

> 
> 
> On Thu, 1 Jan 2026 at 14:14, Robert Bagdan [email protected] wrote:
> 
> > > Further to this - I'm not suggesting --force-gpu-mem-available-mb=128
> > > should necessarily be the default for all builds, but if (say) on
> > > NetBSD-11 and later 141+ shows the issue, then it could be defaulted
> > > on for just the believed affected platforms
> > 
> > I use the radeon kms driver, and chromium for me works with the
> > fallback swiftshader software render.
> > I don't know if this issue depends on the drivers or all affected,
> > this is why I just added this workaround
> > to the README.
> 
> 
> Could I ask if you had to set anything explicitly in chromium or xorg
> settings, or did everything work "Out Of The Box"?
> 
> I'm using the modesetting driver on a T14Gen1 under recent NetBSD-11_BETA
> i915drmkms0 at pci0 dev 2 function 0: Intel UHD Graphics (rev. 0x02)
> 
> Would anyone else seeing the issue like to comment on their setup?



I like to confirm that I see the same issue, and my setup is similar to yours:

i915drmkms0 at pci0 dev 2 function 0: Intel UHD Graphics 620 (GT2) (rev. 0x07)

> 
> Thanks
> 
> David