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+---- Forum: HDMI Port (https://forum.pine64.org/forumdisplay.php?fid=36)
+---- Thread: HDMI issues (/showthread.php?tid=575)
RE: HDMI issues - phloog - 06-19-2016
I'm beginning to think that the three or four most passionate and geeky owners of this thing should keep playing, and the other 99% of the people who backed this should just put it in a closet for a while, then when it's actually working close to properly they can send out an email to everyone.
I have tried FOUR monitors now (two different Samsung, two other brands), using a different HDMI cable each time, with two difference lengths of HDMI cable.
EVERY monitor tells me that I have an "Unsupported Resolution"....
I have tried three different OS (including Remix, which I thought was the one in best shape)..no change..no video.
Tell me how exactly I troubleshoot an issue with no video?
RE: HDMI issues - Ghost - 06-19-2016
(06-19-2016, 01:32 PM)phloog Wrote: I'm beginning to think that the three or four most passionate and geeky owners of this thing should keep playing, and the other 99% of the people who backed this should just put it in a closet for a while, then when it's actually working close to properly they can send out an email to everyone.
I have tried FOUR monitors now (two different Samsung, two other brands), using a different HDMI cable each time, with two difference lengths of HDMI cable.
EVERY monitor tells me that I have an "Unsupported Resolution"....
I have tried three different OS (including Remix, which I thought was the one in best shape)..no change..no video.
Tell me how exactly I troubleshoot an issue with no video?
Try the two OS writing tools and images I posted in the thread you started, here.
Work through systematically, one monitor at a time, one hdmi cable at a time. Do not use any hdmi splitters, use a direct hdmi connection. You got the PSU provided by Pine, and quite rightly have baulked at that possibly being the issue, reasoning that the supplied PSU should work with the board, which seems like logical reasoning (though the microSD cards supplied by Pine have been criticised as being fairly poor - I can't recall if you mentioned which microSD card you are using. That could be a factor as well).
On the face of it, 'unsupported resolution' would suggest that the monitors you are trying do not support either 720p or 1080p, which are the only two resolutions that the Pine64 works with at the moment (not including the 1024 x 600 image used for the LCD touchscreen). But I know from your other posts that at least one of your monitors does support 1080p, as it appears as the resolution setting on your screen, just that you are not getting a picture to go with it.
You are right, though. It shouldn't be this problematic to get everything set up.
RE: HDMI issues - 3lliot - 06-21-2016
I also have tried a variety of monitors, TVs & cables. I got it to work HDMI > HDMI on a Dell S2740L. But it doesn't work on my older Dell 1920 monitor or a 2560 Dell Ultrasharp, or on my Samsung HDTV. Have tried 3 Linux variants.
I get the impression that whoever is developing the kernel drivers is doing it on a very limited set of hardware & hasn't even thought about supporting a sensible range of monitors.
If some Linux guru was able to write some scripts that would update the display drivers for a few common OS variants we'd be leagues ahead of where we are now.
My Pine is sitting on my desk doing nothing now, useless until I can find a cheap monitor that I know I can actually use it with. The only reason I know it was actually booting up is by connecting a USB serial cable.
I don't mind tweaking to get the thing going, that's why I bought it, but when you can't even get it to run a monitor it makes you wonder why you even bothered.
RE: HDMI issues - xalius - 06-21-2016
(06-21-2016, 04:04 PM)3lliot Wrote: I also have tried a variety of monitors, TVs & cables. I got it to work HDMI > HDMI on a Dell S2740L. But it doesn't work on my older Dell 1920 monitor or a 2560 Dell Ultrasharp, or on my Samsung HDTV. Have tried 3 Linux variants.
I get the impression that whoever is developing the kernel drivers is doing it on a very limited set of hardware & hasn't even thought about supporting a sensible range of monitors.
If some Linux guru was able to write some scripts that would update the display drivers for a few common OS variants we'd be leagues ahead of where we are now.
My Pine is sitting on my desk doing nothing now, useless until I can find a cheap monitor that I know I can actually use it with. The only reason I know it was actually booting up is by connecting a USB serial cable.
I don't mind tweaking to get the thing going, that's why I bought it, but when you can't even get it to run a monitor it makes you wonder why you even bothered.
At least for the Linux images based on longsleep's kernel the issue of switching resolution is resolved, resolution can be configured via u-boot and theoretically switched on the fly while running Linux. See http://forum.pine64.org/showthread.php?tid=980
RE: HDMI issues - 3lliot - 06-21-2016
Ok thanks, I'll give that a go (next time I can borrow that usb serial cable...)
RE: HDMI issues - Shad0wSt4R - 06-21-2016
Has anyone had any experience with Pine64 + Acer G215H abd? I have. It requires a DVI input. I bought an adapter for it and when I plug the Pine in the monitor recognizes it and puts on an orange LED (meaning it recognizes a sleeping or off computer connected to it while the monitor itself is on) and when I turn on the Pine the monitor doesn't react at all. Any way I can fix this? monitors are expensive and this is actually a pretty decent monitor. It does do 1080p.
RE: HDMI issues - dhardingham - 06-22-2016
(06-21-2016, 04:21 PM)xalius Wrote:Unfortunately, this tool doesn't support 1920 x 1200. This is widely used by many high-definition monitors.(06-21-2016, 04:04 PM)3lliot Wrote: I also have tried a variety of monitors, TVs & cables. I got it to work HDMI > HDMI on a Dell S2740L. But it doesn't work on my older Dell 1920 monitor or a 2560 Dell Ultrasharp, or on my Samsung HDTV. Have tried 3 Linux variants.
I get the impression that whoever is developing the kernel drivers is doing it on a very limited set of hardware & hasn't even thought about supporting a sensible range of monitors.
If some Linux guru was able to write some scripts that would update the display drivers for a few common OS variants we'd be leagues ahead of where we are now.
My Pine is sitting on my desk doing nothing now, useless until I can find a cheap monitor that I know I can actually use it with. The only reason I know it was actually booting up is by connecting a USB serial cable.
I don't mind tweaking to get the thing going, that's why I bought it, but when you can't even get it to run a monitor it makes you wonder why you even bothered.
At least for the Linux images based on longsleep's kernel the issue of switching resolution is resolved, resolution can be configured via u-boot and theoretically switched on the fly while running Linux. See http://forum.pine64.org/showthread.php?tid=980
RE: HDMI issues - 3lliot - 06-22-2016
(06-22-2016, 02:21 AM)dhardingham Wrote: Unfortunately, this tool doesn't support 1920 x 1200. This is widely used by many high-definition monitors.
I can't get it to boot anyway - I'm using a USB serial cable to monitor the console output, so I can see what it's doing, but the Longsleep build that he recommends, with the inbuilt HDMI resolution script hangs in various different places.
https://www.stdin.xyz/downloads/people/longsleep/pine64-images/ubuntu/
I've tried cleaning & reformatting the SD card 5 times. I'm using Win32 disk imager to write the image to the card.
Can anyone recommend the best Linux build that supports resolution setting, and provide any instructions to get it working (over & above the usual flash image > insert in board)?
RE: HDMI issues - lenny.raposo-pine64.pro - 06-22-2016
If you do uname -r does the kernel list 3.10.65 or 3.10.101 or higher?
have you executed the following after first boot?
sudo resize_rootfs.sh && reboot
sudo pine64_update_uboot.sh && reboot
sudo pine64_update_kernel.sh && reboot
and finally
sudo apt-get install sunxi-disp-tool
reboot
That should get it to work
you may also want to add the following to the end of your uEnv.txt to lower the display resolution to 720p (hopefully your screen supports this mode)
sudo -i
echo 'optargs=disp.screen0_output_mode=720p60' >> /boot/uEnv.txt
reboot
Let me know how it went
RE: HDMI issues - longsleep - 06-22-2016
(06-22-2016, 02:21 AM)dhardingham Wrote: Unfortunately, this tool doesn't support 1920 x 1200. This is widely used by many high-definition monitors.
No true, sunxi-disp-tool has the -mode parameter, taking hex values which can be anything what the given Kernel understands. The problem is that 1920x1200 is not a supported resolution by the HDMI drivers provided by Allwinner for A64. See https://github.com/longsleep/linux-pine64/blob/b44d032aa4090136c2f17c53ed0707064ce2c6da/include/video/sunxi_display2.h#L127-L157 and https://github.com/longsleep/linux-pine64/blob/b44d032aa4090136c2f17c53ed0707064ce2c6da/include/video/sunxi_display2.h#L127-L157 for details.