On 6/4/2021 9:00 AM, Wei Liu wrote:
On Fri, Jun 04, 2021 at 02:25:01PM +0200, Vitaly Kuznetsov wrote:
Hi,
Commit ccf953d8f3d6 ("fb_defio: Remove custom address_space_operations")
seems to be breaking Hyper-V framebuffer
(drivers/video/fbdev/hyperv_fb.c) driver for me: Hyper-V guest boots
well and plymouth even works but when I try starting Gnome, virtual
screen just goes black. Reverting the above mentioned commit on top of
5.13-rc4 saves the day. The behavior is 100% reproducible. I'm using
Gen2 guest runing on Hyper-V 2019. It was also reported that Gen1 guests
are equally broken.
Is this something known?
I've heard a similar report from Vineeth but we didn't get to the bottom
of this.
I have just tried reverting the commit mentioned above and it solves the
GUI freeze
I was also seeing. Previously, login screen was just freezing, but VM
was accessible
through ssh. With the above commit reverted, I can login to Gnome.
Looks like I am also experiencing the same bug mentioned here.
Thanks,
Vineeth
