External Video Capture Card and Screen Resolution on Linux

AmigaOne X5000 platform specific issues related to Linux only.

External Video Capture Card and Screen Resolution on Linux

Postby seventhwonder » Wed Feb 07, 2018 6:41 pm

Hi all

I am using a Avermedia Live Gamer Extreme 1080p capture card to record videos of my X5000 and Tabor..
The capture card has HDMI In and HDMI out, so if it is acting like another monitor.

I succesfully recorded a video of my X5000 running on AmigaOS4 with FullHD resolution

https://www.youtube.com/watch?v=-MFUVQa ... e=youtu.be

However when I run Linux on X5K (I have Debian 9-32 Bit and Ubuntu 16.04 installed on 2 partitions), the system always opens a 1280x720 screen
and it is not possible to change any screenmodes.

I have a Radeon R7 265.

What may be the problem ?
AmigaOS4 Beta-Tester
**AmigaOne X5000 + 8GB RAM + Asus Radeon R7 265 GDDR5**
**Tabor A1222 + 2GB RAM + Asus Radeon HD R7 265 GDDR5 **
**Sam460 + 2GB RAM + Radeon HD 7750 GDDR5 **
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Re: External Video Capture Card and Screen Resolution on Lin

Postby mechanic » Wed Feb 07, 2018 9:49 pm

This worked for me with Mintppc, and still works on ubuntu 16.04 x86.

Open a terminal.
Notice the -q option shows the DVI-0 output is the one being used. Your mileage may vary.

Try to choose a mode with a scanrate your monitor can handle. There are other ways.

len@gbyte ~ $ xrandr -q
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 16384 x 16384
DVI-0 connected primary 1920x1080+0+0 (normal left inverted right x axis y axis) 521mm x 293mm
1920x1080 60.00*+
1600x1200 60.00
1680x1050 59.88
1280x1024 75.02 60.02
1440x900 74.98 59.90
1280x960 60.00
1152x864 75.00
1024x768 75.08 70.07 60.00
832x624 74.55
800x600 72.19 75.00 60.32 56.25
640x480 75.00 72.81 66.67 60.00
720x400 70.08
HDMI-0 disconnected (normal left inverted right x axis y axis)
VGA-0 disconnected (normal left inverted right x axis y axis)
len@gbyte ~ $ xrandr --output DVI-0 --mode 1280x960
len@gbyte ~ $ xrandr --output DVI-0 --mode 1920x1080
len@gbyte ~ $
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Re: External Video Capture Card and Screen Resolution on Lin

Postby seventhwonder » Thu Feb 08, 2018 5:09 pm

Here is the output

root@Amigaone:/home/amigaone# xrandr -q
xrandr: Failed to get size of gamma for output default
Screen 0: minimum 1280 x 720, current 1280 x 720, maximum 1280 x 720
default connected 1280x720+0+0 0mm x 0mm
1280x720 0.00*

Since I have a RadeonSI I have to use fbdev driver.

Maybe fbdev driver fails to recognize external capture cards as 1920x1080 ?
AmigaOS4 Beta-Tester
**AmigaOne X5000 + 8GB RAM + Asus Radeon R7 265 GDDR5**
**Tabor A1222 + 2GB RAM + Asus Radeon HD R7 265 GDDR5 **
**Sam460 + 2GB RAM + Radeon HD 7750 GDDR5 **
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Re: External Video Capture Card and Screen Resolution on Lin

Postby mechanic » Thu Feb 08, 2018 10:50 pm

I do not have access to my X1k.
If you are using the frame buffer you probably want to investigate the fbset command and look into /etc/default/grub.

Perhaps one of the ppc linux people can help you better. Sorry. :cry:
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