Need help: vertical screen rotation!

[Martin Flöser]

Am 2017-11-07 19:03, schrieb Sebastian Kügler:
> On dinsdag 7 november 2017 18:28:40 CET Martin Flöser wrote:
>> > upside down works, 90 and 270 do nothing on my system.
>> >
>> > Debian Unstable
>> > Linux manta 4.13.0-1-amd64 #1 SMP Debian 4.13.4-1 (2017-10-01)
>> > x86_64 GNU/ Linux
>> >
>> > 00:02.0 VGA compatible controller: Intel Corporation HD Graphics 620
>> > (rev 02)
>> >
>> > I think above satisfies the requirements for AMS? Anything I can
>> > test?
>> 
>> What about XRandr? Does XRandR support 90 or 270 on your system?
> 
> Yup, that works.

meh, my assumption was that if we have rotation on XRandR, we get the 
same rotations on DRM. So either my code doesn't work for rotation or we 
need to rotate the crtc instead of the plane. Can you try the 
supportedTransformations patch and check the debug output which 
rotations are supported for the planes?

Cheers
Martin