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[209.121.85.76]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-72f8a7638aesm5581875b3a.102.2025.01.26.09.37.25 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 26 Jan 2025 09:37:25 -0800 (PST) Message-ID: <5014ced2-6981-4e52-adc5-ae552f88142b@gmail.com> Date: Sun, 26 Jan 2025 09:37:24 -0800 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [gentoo-user] Troubshooting AMD Radeon Vega system freeze To: gentoo-user@lists.gentoo.org References: Content-Language: en-US From: Daniel Frey In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Archives-Salt: 73b263c3-98c5-4f62-821c-27fc77fbfb2e X-Archives-Hash: 487f44938f36429132ee760cc947367f On 1/25/25 11:13 AM, Grant Edwards wrote: > Starting about a week ago, my AMD system (AMD Ryzen 5 3400G with > Radeon Vega Graphics) has been freezing up multiple times per day -- > always when in active use with X11. Before that, it had been reliable > since assembled (about 5 years ago). > > Ctrl-Alt-Backspace does nothing > Ctrl-Alt-F1 does nothing > > The SysRq key does work (I'm able to sync/remount/reboot), but I'm > unable to get the console restored using SysRq keys once it freezes. > > When it's not frozen, I can use SysRq to kill X11 and switch back to > the FB console, but I can't figure out how to get console output to > show up: I see the SysRq commands being echoed on the console, but all > output from them is going into the syslog. > > The CPU was not at all not heavily loaded, and temps and fans speeds > are not noticably different than when the machine is idle. > > I've run MemTest86+ for 12 hours: no errors. > > I've tried dropping back fomm kernel 6.1.121 to 6.1.118: no change. > > Next, I suppose I should start rolling back X11 drivers? > > -- > Grant > > > I had a problem with two of my Ryzen systems that exhibited this behaviour. One has a G processor, the other doesn't Apparently Ryzen processors have an idle bug that locks up the system in this way. The bugs manifests randomly when the CPU is idle. For me, if I left the PC on overnight it would always be hung up the next morning. It would also trigger if I started a long emerge and forgot about it - it would idle enough it would hang. I had to update the BIOS on both machines, then change the "Power Supply Idle Control" to "Typical Current Idle". Any other setting and the bug manifests. Note this setting is for Asus motherboards; I would imagine other manufacturers have a similar setting but it may be named differently. I did test it, I left both my PCs on for over 48 hours and no lockup. Dan