Re: [Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-08-06 Thread Tetsuo Handa
As of commit 47ec5303d73ea344 ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next") on linux.git , my VMware environment cannot boot. Do I need to bisect? [9.314496][T1] vga16fb: mapped to 0x71050562 [9.467770][T1] Console: switching to colour frame buffe

Re: [Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-08-05 Thread daniel
On Thu, Aug 06, 2020 at 03:43:02PM +0900, Tetsuo Handa wrote: > As of commit 47ec5303d73ea344 ("Merge > git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next") on linux.git , > my VMware environment cannot boot. Do I need to bisect? That sounds like a good idea, but please start a new thr

Re: [Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-07-02 Thread Daniel Vetter
On Thu, Jul 2, 2020 at 1:27 PM Laurent Pinchart wrote: > > Hi Daniel, > > Thank you for the patch. > > On Fri, Jun 12, 2020 at 06:00:49PM +0200, Daniel Vetter wrote: > > Only when vblanks are supported ofc. > > > > Some drivers do this already, but most unfortunately missed it. This > > opens up b

Re: [Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-07-02 Thread Laurent Pinchart
Hi Daniel, Thank you for the patch. On Fri, Jun 12, 2020 at 06:00:49PM +0200, Daniel Vetter wrote: > Only when vblanks are supported ofc. > > Some drivers do this already, but most unfortunately missed it. This > opens up bugs after driver load, before the crtc is enabled for the > first time. s

Re: [Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-06-24 Thread Maxime Ripard
On Fri, Jun 12, 2020 at 06:00:49PM +0200, Daniel Vetter wrote: > Only when vblanks are supported ofc. > > Some drivers do this already, but most unfortunately missed it. This > opens up bugs after driver load, before the crtc is enabled for the > first time. syzbot spotted this when loading vkms a

[Intel-gfx] [PATCH 1/8] drm/atomic-helper: reset vblank on crtc reset

2020-06-12 Thread Daniel Vetter
Only when vblanks are supported ofc. Some drivers do this already, but most unfortunately missed it. This opens up bugs after driver load, before the crtc is enabled for the first time. syzbot spotted this when loading vkms as a secondary output. Given how many drivers are buggy it's best to solve