Re: [PATCH v6 3/5] fbdev: Disable sysfb device registration when removing conflicting FBs
From: Javier Martinez Canillas <javierm@redhat.com>
Date: 2022-07-04 11:04:33
Also in:
dri-devel, kvm, lkml
From: Javier Martinez Canillas <javierm@redhat.com>
Date: 2022-07-04 11:04:33
Also in:
dri-devel, kvm, lkml
Hello Xi, On 7/4/22 12:29, Xi Ruoyao wrote:
On Mon, 2022-07-04 at 17:36 +0800, Xi Ruoyao wrote:quoted
quoted
Yes, please do. Either with CONFIG_SYSFB_SIMPLEFB disabled and CONFIG_FB_EFI enabled (so that "efi-framebuffer" is registered and efifb probed) or with CONFIG_SYSFB_SIMPLEFB but CONFIG_FB_SIMPLE enabled (so "simple-framebuffer is used too but with simplefb instead of simpledrm). I'm not able to reproduce, it would be useful to have another data point.Also happening for me with CONFIG_SYSFB_SIMPLEFB, on a Intel Core i7- 1065G7 (with iGPU). Reverting this commit on top of 5.19-rc5 "fixes" the issue.With CONFIG_SYSFB_SIMPLEFB and CONFIG_FB_SIMPLE enabled, there is no issue. I guess it's something going wrong on a "drm -> drm" pass over. For now I'll continue to use simpledrm with this commit reverted.
Yes, we need to also cherry-pick b84efa28a48 ("drm/aperture: Run fbdev
removal before internal helpers") now that the sysfb_disable() patches
are in v5.19-rc5.
--
Best regards,
Javier Martinez Canillas
Linux Engineering
Red Hat