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by aje_fr
Thu Aug 23, 2018 3:56 pm
Forum: Troubleshooting
Topic: Strange problem with a USB key (jessie / stretch but not noob)
Replies: 0
Views: 52

Strange problem with a USB key (jessie / stretch but not noob)

Hello, I have a really, really strange issue with a usb key. Model is PNY 128GB fd128att430-ef : https://www.amazon.fr/gp/product/B01N1ISAKL I tried multiple image but still the same issue. With Jessie (2017-07-05-raspbian-jessie-lite) and Stretch (2018-06-27-raspbian-stretch-lite), here what happen...
by aje_fr
Mon Aug 08, 2016 10:49 am
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 199
Views: 242351

Re: HOWTO: Create Custom HDMI modes

Please, could you let us know if there is any possibility to achieve this. We are many to look for a way to update hdmi_timing while the system is alive. As the firmware is closed, no revealant datasheet available, you may be the only one to know how to do, could you share your knowledge :lol: No c...
by aje_fr
Mon Aug 08, 2016 10:47 am
Forum: Advanced users
Topic: Modifying Hdmi timings while system alive
Replies: 7
Views: 1289

Re: Modifying Hdmi timings while system alive

@aje_fr Hi, can you tell me whether the board you mentioned earlier, that allows a Raspberry Pi to be fitted to an arcade cabinet is available for sale anywhere, and if so, can you provide a link? Thanks. Hello, It will be available for sale once a solution for this hdmi timings will be found. :| B...
by aje_fr
Tue Aug 02, 2016 9:47 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 199
Views: 242351

Re: HOWTO: Create Custom HDMI modes

Hi aje_fr, Unfortunately, I'm in the same position as you. Dom, if you're monitoring this thread, is there some official means by which we can request the RPi foundation to look into this issue? The ability to modify HDMI timings on the fly (i.e. without having to carry out a reboot) is essential f...
by aje_fr
Fri Jul 08, 2016 9:56 pm
Forum: Advanced users
Topic: Modifying Hdmi timings while system alive
Replies: 7
Views: 1289

Re: Modifying Hdmi timings while system alive

Hello,
Still looking for a way to update hdmi_timings while system is running ?
Is there really no possibility ? (I really hope not)
Best regards
by aje_fr
Sun Jul 03, 2016 10:25 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Create Custom HDMI modes
Replies: 199
Views: 242351

Re: HOWTO: Create Custom HDMI modes

Hello, I didn't had answer on my own topic, so i'm trying here :? (ie dom, please help me, you are my only hope) Well, I have two problems : - How could I update hdmi_timings when the system has already booted, I need to update screen resolution while system alive. It's for use with a cathodic monit...
by aje_fr
Sun Jun 26, 2016 7:47 am
Forum: Advanced users
Topic: Modifying Hdmi timings while system alive
Replies: 7
Views: 1289

Re: Modifying Hdmi timings while system alive

Hello, Well, I have made a board to allow plugging a raspberry pi in an arcade video game cabinet. http://img15.hostingpics.net/pics/521931SANY0549.jpg This board is made to run some emulators. As all systems uses their own video resolution/timing, I need to change this value when the system is runn...
by aje_fr
Sat Jun 25, 2016 9:00 am
Forum: Advanced users
Topic: Modifying Hdmi timings while system alive
Replies: 7
Views: 1289

Re: Modifying Hdmi timings while system alive

Hi'
Nobody to help me ? :|
I really need to update value from "hdmi_timings" line in "config.txt" when the system has already booted.
Any register address or something else to access this value directly without need to reboot the system ?
Thanks
by aje_fr
Thu Jun 23, 2016 8:28 am
Forum: Advanced users
Topic: Get rid of Pixel clock frequency limit on low value
Replies: 0
Views: 321

Get rid of Pixel clock frequency limit on low value

Hello,
I'm working on CRT screen adapter for the raspberry pi.
But I'm stuck with the limit of the hdmi_pixel_freq_limit on low value.
Only few value are allowed bellow 19,2Mhz, could I get rid of this limit ?
Is this a hardware limitation or a software one ?
Thanks
by aje_fr
Tue May 31, 2016 5:09 pm
Forum: Advanced users
Topic: Modifying Hdmi timings while system alive
Replies: 7
Views: 1289

Modifying Hdmi timings while system alive

Hello there :D Well, for a specific application, I need to modify hdmi timing when the system is already runing. Timing could change from time to time. I mean it will not be the same value at every call of the function. Is this timing value accessible by any register ? Where can I find revelant data...

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