tree 75c4dffb0bab23de84d536babcaf556ee4ad3a61
parent f90f68d1e9bc6c53f49ebac6d0b8e11257de77a9
author Jammy Huang <jammy_huang@aspeedtech.com> 1635918982 +0800
committer Jammy Huang <jammy_huang@aspeedtech.com> 1635921772 +0800

Fix kvm show disconnected if host successively changes resolution

Video::resize() will throw execption if any ioctl failed and it leads
to rfb server stopped. This is the root cause because
VIDIOC_QUERY_DV_TIMINGS always could return error for no signal.

If VIDIOC_QUERY_DV_TIMINGS failed, we can go restart() to avoid this
problem.

Tested: manually tested with the host which changes resolution quickly
and successively.

Signed-off-by: Jammy Huang <jammy_huang@aspeedtech.com>
Change-Id: Ie613f177122b7058e19511a451e4dad9cb1dffbf