Hi,
I've seen a few people have UHD monitors working with their raspberry pi3's. I'm confused by a constraint that appears to be an X constraint, and that's the size of the desktop.
Has anyone gotten this to work successfully using an openSUSE build?
This works: #cvt -r 3840 2160 60 #xrandr --newmode "3840x2160" 533.00 3840 3888 3920 4000 2160 2163 2168 2222 +hsync -vsync #xrandr --addmode HDMI-1 3840x2160
This doesn't: #xrandr --output HDMI-1 --mode "3840x2160" --rate 60 --fb 4096x4096 -- panning 4096x4096
error is: xrandr: screen cannot be larger than 2048x2048 (desired size 4096x4096)
How do I change the default to something larger than 2048x2048 (desired is 4096x4096)?
Is there a way to change it dynamically, or do I need to do some work with xorg.conf files?
-Steve
On Montag, 25. Juni 2018 23:06:29 CEST Steve Moring wrote:
Hi,
I've seen a few people have UHD monitors working with their raspberry pi3's. I'm confused by a constraint that appears to be an X constraint, and that's the size of the desktop.
Has anyone gotten this to work successfully using an openSUSE build?
This works: #cvt -r 3840 2160 60
4k @ 60fps is more than HDMI 1.3 can handle. You can either do 2560x1440@60p or 3840x2160@30p.
Kind regards,
Stefan
Stefan,
4k @ 60fps is more than HDMI 1.3 can handle. You can either do 2560x 1440@60p or 3840x2160@30p.
Ah, I should have looked at the hardware itself.
My apologies for the noise.
Thank you for your guidance.
Kind regards,
Stefan
Stefan,
On Mon, 2018-06-25 at 21:08 +0000, Brüns, Stefan wrote:
On Montag, 25. Juni 2018 23:06:29 CEST Steve Moring wrote:
Hi,
I've seen a few people have UHD monitors working with their raspberry pi3's. I'm confused by a constraint that appears to be an X constraint, and that's the size of the desktop.
Has anyone gotten this to work successfully using an openSUSE build?
This works: #cvt -r 3840 2160 60
4k @ 60fps is more than HDMI 1.3 can handle. You can either do 2560x 1440@60p or 3840x2160@30p.
When I set the resolution to 2560x1440 (or the 3840x2160), it still tells me:
xrandr --output HDMI-1 --mode "2560x1440_60.0" --rate 60
xrandr: screen cannot be larger than 2048x2048 (desired size 2560x1440)
I think X itself is constraining the desktop size, does that sound plausible?
I have not tried a newer install yet, this one is still from June.
Kind regards,
Stefan
Stefan,
Thank you for your help so far. Can you help me to understand why the Pi images X configurations only show a maximum size of 2048x2048 when with os42.3 on Intel it supports 32767x32767:
smoring@os423happylappy:~> xrandr Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767 ....
-Steve
On Mon, 2018-06-25 at 21:08 +0000, Brüns, Stefan wrote:
On Montag, 25. Juni 2018 23:06:29 CEST Steve Moring wrote:
Hi,
I've seen a few people have UHD monitors working with their raspberry pi3's. I'm confused by a constraint that appears to be an X constraint, and that's the size of the desktop.
Has anyone gotten this to work successfully using an openSUSE build?
This works: #cvt -r 3840 2160 60
4k @ 60fps is more than HDMI 1.3 can handle. You can either do 2560x 1440@60p or 3840x2160@30p.
Kind regards,
Stefan
-
Brüns, Stefan -
Steve Moring