Re: How can I force a particular startup hdmi mode on Raspian/Buster?
On 2019-07-30 6:51 p.m., Cousin Stanley wrote: Gary Dale wrote: Unfortunately none of those options are 1080i. I've tried all of the 1920x1080 and they all end up being progressive scan. Running raspbian here on a rpi3b+ currently using a 22in LG hdmi monitor. screen resolution is 1920x1080 @ 96dpi The raspi-config resolution menu offers 2 1920x1080 options CEA mode 16 1920x1080 60Hz 16:9 CEA mode 31 1920x1980 50Hz 16:10 I don't remember using these options myself when I first set it up, but that doesn't mean that I didn't In 10 days I'll be 73 years old and the wet-ware memory ain't what it used to be :-) I've also used a Philips 43in TV hdmi port with this particular rpi3b+ and do recall an odd occasional prompt about screen res that would resolve itself with an OK click but otherwise display was fine. I'm not that much younger than you but different TVs can have different issues. Mine's a Panasonic 42" Plasma. The issue isn't getting a prompt about screen resolution but rather about getting anything to display. In your case CEA modes 16 & 31 are 1080p. Mode 16 is 60Hz while 31 is 50Hz. Since Philips is a European brand, it probably has no trouble with either frequency. Left to its own devices, my Pi4B will end up in 640x480. When I let it default, all I get are 640x480 and 720x480 resolution options. By adding a lot of lines to /boot/config.txt, I can get it to go into a 1920x1080p mode that my TV can't sync to. However I can use VNC or SSH to the desktop and open a terminal to set it to CEA mode 5, which is 1080i. At that point, I can see a long list of DMT modes, which are progressive scan so far as I can see. This is one of my biggest complaints about the people who design these things: 1080i is an international broadcast standard. Every device intended to potentially output to an HDTV should be able to handle 1080i automatically. It shouldn't be left to the device user to struggle to get it to work.
Re: How can I force a particular startup hdmi mode on Raspian/Buster?
Gary Dale wrote: > Unfortunately none of those options are 1080i. > > I've tried all of the 1920x1080 > and they all end up being progressive scan. > Running raspbian here on a rpi3b+ currently using a 22in LG hdmi monitor. screen resolution is 1920x1080 @ 96dpi The raspi-config resolution menu offers 2 1920x1080 options CEA mode 16 1920x1080 60Hz 16:9 CEA mode 31 1920x1980 50Hz 16:10 I don't remember using these options myself when I first set it up, but that doesn't mean that I didn't In 10 days I'll be 73 years old and the wet-ware memory ain't what it used to be :-) I've also used a Philips 43in TV hdmi port with this particular rpi3b+ and do recall an odd occasional prompt about screen res that would resolve itself with an OK click but otherwise display was fine. -- Stanley C. Kitching Human Being Phoenix, Arizona
Re: How can I force a particular startup hdmi mode on Raspian/Buster?
On 2019-07-30 4:44 p.m., Cousin Stanley wrote: Gary Dale wrote: Raspian uses a /boot/config.txt file to control video modes but this is failing in my case. It refuses to output 1080i unless I set that mode from the command line. However, when I do that, I lose the ability to adjust the overscan that the config.txt provides. Without that ability, I lose a lot of the desktop, including the task/menu bar. If you haven't already you might try $ sudo raspi-config > Advanced Options > Resolution This provides a long drop-down menu to select from. Unfortunately none of those options are 1080i. I've tried all of the 1920x1080 and they all end up being progressive scan.
Re: How can I force a particular startup hdmi mode on Raspian/Buster?
Gary Dale wrote: > > Raspian uses a /boot/config.txt file to control video modes > but this is failing in my case. > > It refuses to output 1080i unless I set that mode > from the command line. > > However, when I do that, I lose the ability to adjust the overscan > that the config.txt provides. > > Without that ability, I lose a lot of the desktop, > including the task/menu bar. > If you haven't already you might try $ sudo raspi-config > Advanced Options > Resolution This provides a long drop-down menu to select from. -- Stanley C. Kitching Human Being Phoenix, Arizona
Re: How can I force a particular startup hdmi mode on Raspian/Buster?
I've never gotten that to work reliably either. Good luck. On Tue, Jul 30, 2019, 11:43 Gary Dale wrote: > I'm posting a Pi question to this list because I believe I need a Debian > answer. The Raspian answers have been failing me - see > > https://raspberrypi.stackexchange.com/questions/101144/how-can-i-get-my-new-raspberry-pi-4b-to-output-1080i-video?noredirect=1#comment167120_101144 > for the details. > > Raspian uses a /boot/config.txt file to control video modes but this is > failing in my case. It refuses to output 1080i unless I set that mode > from the command line. However, when I do that, I lose the ability to > adjust the overscan that the config.txt provides. Without that ability, > I lose a lot of the desktop, including the task/menu bar. > > I believe I should be able to deal with this by using xorg.conf and/or > xrandr settings but it's been a long time since I've had to deal with > that. Can anyone point me to some good, up to date, how to for setting a > display to 1080i with overscan adjustments? > >
How can I force a particular startup hdmi mode on Raspian/Buster?
I'm posting a Pi question to this list because I believe I need a Debian answer. The Raspian answers have been failing me - see https://raspberrypi.stackexchange.com/questions/101144/how-can-i-get-my-new-raspberry-pi-4b-to-output-1080i-video?noredirect=1#comment167120_101144 for the details. Raspian uses a /boot/config.txt file to control video modes but this is failing in my case. It refuses to output 1080i unless I set that mode from the command line. However, when I do that, I lose the ability to adjust the overscan that the config.txt provides. Without that ability, I lose a lot of the desktop, including the task/menu bar. I believe I should be able to deal with this by using xorg.conf and/or xrandr settings but it's been a long time since I've had to deal with that. Can anyone point me to some good, up to date, how to for setting a display to 1080i with overscan adjustments?
