I use fedora on a 11ish year old laptop(It had decent specs for its time).

recently i encountered an issue while playing a 11 hour webm video(celluloid flatpak) i had downloaded off youtube,

the screen froze, I could still hear the video sound playing, but the system wasn’t responding to any keyboard presses(Wouldnt switch over to TTY2-4),

I had heard about REISUB and tried it, but it obviously didnt work, after about 2:30 mins the system unfroze and i was shuffled Across numerous TTY’s and the video closed as i had invoked CLTRL+Q

I am not here for a resolution to my problem The issue is reproducible by loading numerous instances of videos whose combined watch time Exceeds about 7-8 hours

I am more curious as to why SYSRQ is disabled and are there any consequences in enabling it(Security Wise)?

  • Skull giver@popplesburger.hilciferous.nl
    0·
    9 months ago

    I think someone demonstrated a remote attack through USB over IP? Plus plenty of people disable the “actually require permission to pair” setting in their Bluetooth config to pair shitty old keyboards.

    I don’t think the security issue is that important, but for most users the sysrq feature is just a “press to crash your computer” button. It makes sense to disable that by default, I think.