RandR rotation fails with recent X-servers

grai · 03-16-11, 07:09 PM

Attempts to rotate the display to the left or right with nvidia-settings or /usr/bin/xrandr fail with a BadValue error:

Code:

$ xrandr -o left
X Error of failed request:  BadValue (integer parameter out of range for operation)
  Major opcode of failed request:  154 (RANDR)
  Minor opcode of failed request:  2 (RRSetScreenConfig)
  Value in failed request:  0x780
  Serial number of failed request:  14
  Current serial number in output stream:  14

Inverting works. (xrandr -o inverted)

It seems that this xorg commit from December causes the problem with nvidia drivers. For that reason it was reverted, but only on the 1.7 branch. Unfortunately, my distribution tracks the 1.9-branch of xorg-xserver.

Should that commit be reverted in all xserver branches, or is it the nvidia driver that needs fixing?

Interestingly, someone claimed on the debian bug report that gnome-display-properties succeeds where nvidia-settings and xrandr crash.

P.S. According to this FAQ page, bug reports can be emailed to linux-bugs@nvidia.com. Is that still true?

**AaronP** · 03-17-11, 12:03 PM

That change doesn't take rotation into account correctly. The width/height check needs to be moved to before the rotation check, or modified to use the original mode->mode.width/height instead of the rotated width/height.

**AaronP** · 03-17-11, 12:04 PM

Quote:

Originally Posted by grai

P.S. According to this FAQ page, bug reports can be emailed to linux-bugs@nvidia.com. Is that still true?

Sorry, I forgot to answer this: yes.

Cyborg16 · 05-13-11, 04:22 AM

Looks like there's a patch to address this now: http://patchwork.freedesktop.org/patch/5427/

**AaronP** · 05-13-11, 09:39 AM

Yes, thanks for catching that. Jeremy asked for someone to test it before applying it, so if someone with this problem could give it a try, that would be awesome.

Cyborg16 · 05-26-11, 04:59 AM

That patch works for me: I can rotate the screen again with xrandr and with nvidia-settings. (Used debian xserver-xorg-core 2:1.10.1-2 as a base package.)

03-17-11, 12:03 PM	#2
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: RandR rotation fails with recent X-servers That change doesn't take rotation into account correctly. The width/height check needs to be moved to before the rotation check, or modified to use the original mode->mode.width/height instead of the rotated width/height.

05-13-11, 04:22 AM	#4
Cyborg16 Registered User Join Date: Jan 2006 Posts: 5	Re: RandR rotation fails with recent X-servers Looks like there's a patch to address this now: http://patchwork.freedesktop.org/patch/5427/

05-13-11, 09:39 AM	#5
AaronP NVIDIA Corporation Join Date: Mar 2005 Posts: 2,487	Re: RandR rotation fails with recent X-servers Yes, thanks for catching that. Jeremy asked for someone to test it before applying it, so if someone with this problem could give it a try, that would be awesome.

05-26-11, 04:59 AM	#6
Cyborg16 Registered User Join Date: Jan 2006 Posts: 5	Re: RandR rotation fails with recent X-servers That patch works for me: I can rotate the screen again with xrandr and with nvidia-settings. (Used debian xserver-xorg-core 2:1.10.1-2 as a base package.)