diff --git a/backend/Cargo.lock b/backend/Cargo.lock
index 85199ce..c108f06 100644
--- a/backend/Cargo.lock
+++ b/backend/Cargo.lock
@@ -100,18 +100,18 @@ checksum = "0e97ce7de6cf12de5d7226c73f5ba9811622f4db3a5b91b55c53e987e5f91cba"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "async-trait"
-version = "0.1.69"
+version = "0.1.72"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b2d0f03b3640e3a630367e40c468cb7f309529c708ed1d88597047b0e7c6ef7"
+checksum = "cc6dde6e4ed435a4c1ee4e73592f5ba9da2151af10076cc04858746af9352d09"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -220,9 +220,12 @@ checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "cc"
-version = "1.0.79"
+version = "1.0.82"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50d30906286121d95be3d479533b458f87493b30a4b5f79a607db8f5d11aa91f"
+checksum = "305fe645edc1442a0fa8b6726ba61d422798d37a52e12eaecf4b022ebbb88f01"
+dependencies = [
+ "libc",
+]
 
 [[package]]
 name = "cexpr"
@@ -291,9 +294,9 @@ checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
 name = "cpufeatures"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03e69e28e9f7f77debdedbaafa2866e1de9ba56df55a8bd7cfc724c25a09987c"
+checksum = "a17b76ff3a4162b0b27f354a0c87015ddad39d35f9c0c36607a3bdd175dde1f1"
 dependencies = [
  "libc",
 ]
@@ -326,6 +329,12 @@ dependencies = [
  "cipher",
 ]
 
+[[package]]
+name = "deranged"
+version = "0.3.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7684a49fb1af197853ef7b2ee694bc1f5b4179556f1e5710e1760c5db6f5e929"
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -338,9 +347,9 @@ dependencies = [
 
 [[package]]
 name = "either"
-version = "1.8.1"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+checksum = "a26ae43d7bcc3b814de94796a5e736d4029efb0ee900c12e2d54c993ad1a1e07"
 
 [[package]]
 name = "encoding"
@@ -417,9 +426,9 @@ dependencies = [
 
 [[package]]
 name = "equivalent"
-version = "1.0.0"
+version = "1.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88bffebc5d80432c9b140ee17875ff173a8ab62faad5b257da912bd2f6c1c0a1"
+checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
 [[package]]
 name = "errno"
@@ -610,9 +619,9 @@ dependencies = [
 
 [[package]]
 name = "hermit-abi"
-version = "0.3.1"
+version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+checksum = "443144c8cdadd93ebf52ddb4056d257f5b52c04d3c804e657d19eb73fc33668b"
 
 [[package]]
 name = "hex"
@@ -733,9 +742,9 @@ dependencies = [
 
 [[package]]
 name = "itoa"
-version = "1.0.8"
+version = "1.0.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b02a5381cc465bd3041d84623d0fa3b66738b52b8e2fc3bab8ad63ab032f4a"
+checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
 [[package]]
 name = "js-sys"
@@ -900,9 +909,9 @@ dependencies = [
 
 [[package]]
 name = "num-traits"
-version = "0.2.15"
+version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+checksum = "f30b0abd723be7e2ffca1272140fac1a2f084c77ec3e123c192b66af1ee9e6c2"
 dependencies = [
  "autocfg",
 ]
@@ -999,29 +1008,29 @@ checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 
 [[package]]
 name = "pin-project"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "030ad2bc4db10a8944cb0d837f158bdfec4d4a4873ab701a95046770d11f8842"
+checksum = "fda4ed1c6c173e3fc7a83629421152e01d7b1f9b7f65fb301e490e8cfc656422"
 dependencies = [
  "pin-project-internal",
 ]
 
 [[package]]
 name = "pin-project-internal"
-version = "1.1.2"
+version = "1.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec2e072ecce94ec471b13398d5402c188e76ac03cf74dd1a975161b23a3f6d9c"
+checksum = "4359fd9c9171ec6e8c62926d6faaf553a8dc3f64e1507e76da7911b4f6a04405"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "pin-project-lite"
-version = "0.2.10"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4c40d25201921e5ff0c862a505c6557ea88568a4e3ace775ab55e93f2f4f9d57"
+checksum = "2c516611246607d0c04186886dbb3a754368ef82c79e9827a802c6d836dd111c"
 
 [[package]]
 name = "pin-utils"
@@ -1043,7 +1052,7 @@ dependencies = [
 
 [[package]]
 name = "powertools"
-version = "1.4.0-beta1"
+version = "1.4.0-beta2"
 dependencies = [
  "async-trait",
  "libryzenadj",
@@ -1077,18 +1086,18 @@ dependencies = [
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.63"
+version = "1.0.66"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b368fba921b0dce7e60f5e04ec15e565b3303972b42bcfde1d0713b881959eb"
+checksum = "18fb31db3f9bddb2ea821cde30a9f70117e3f119938b5ee630b7403aa6e2ead9"
 dependencies = [
  "unicode-ident",
 ]
 
 [[package]]
 name = "quote"
-version = "1.0.29"
+version = "1.0.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "573015e8ab27661678357f27dc26460738fd2b6c86e46f386fde94cb5d913105"
+checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
 dependencies = [
  "proc-macro2",
 ]
@@ -1125,9 +1134,21 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.8.4"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d0ab3ca65655bb1e41f2a8c8cd662eb4fb035e67c3f78da1d61dffe89d07300f"
+checksum = "81bc1d4caf89fac26a70747fe603c130093b53c773888797a6329091246d651a"
+dependencies = [
+ "aho-corasick",
+ "memchr",
+ "regex-automata",
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed1ceff11a1dddaee50c9dc8e4938bd106e9d89ae372f192311e7da498e3b69"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1136,9 +1157,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.2"
+version = "0.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "436b050e76ed2903236f032a59761c1eb99e1b0aead2c257922771dab1fc8c78"
+checksum = "e5ea92a5b6195c6ef2a0295ea818b312502c6fc94dde986c5553242e18fd4ce2"
 
 [[package]]
 name = "rustc-demangle"
@@ -1163,9 +1184,9 @@ dependencies = [
 
 [[package]]
 name = "ryu"
-version = "1.0.14"
+version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe232bdf6be8c8de797b22184ee71118d63780ea42ac85b61d1baa6d3b782ae9"
+checksum = "1ad4cc8da4ef723ed60bced201181d83791ad433213d8c24efffda1eec85d741"
 
 [[package]]
 name = "scoped-tls"
@@ -1175,29 +1196,29 @@ checksum = "e1cf6437eb19a8f4a6cc0f7dca544973b0b78843adbfeb3683d1a94a0024a294"
 
 [[package]]
 name = "serde"
-version = "1.0.166"
+version = "1.0.183"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d01b7404f9d441d3ad40e6a636a7782c377d2abdbe4fa2440e2edcc2f4f10db8"
+checksum = "32ac8da02677876d532745a130fc9d8e6edfa81a269b107c5b00829b91d8eb3c"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.166"
+version = "1.0.183"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5dd83d6dde2b6b2d466e14d9d1acce8816dedee94f735eac6395808b3483c6d6"
+checksum = "aafe972d60b0b9bee71a91b92fee2d4fb3c9d7e8f6b179aa99f27203d99a4816"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.99"
+version = "1.0.104"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "46266871c240a00b8f503b877622fe33430b3c7d963bdc0f2adc511e54a1eae3"
+checksum = "076066c5f1078eac5b722a31827a8832fe108bed65dfa75e233c89f8206e976c"
 dependencies = [
  "itoa",
  "ryu",
@@ -1241,7 +1262,7 @@ checksum = "acee08041c5de3d5048c8b3f6f13fafb3026b24ba43c6a695a0c76179b844369"
 dependencies = [
  "log",
  "termcolor",
- "time 0.3.22",
+ "time 0.3.25",
 ]
 
 [[package]]
@@ -1288,9 +1309,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.23"
+version = "2.0.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59fb7d6d8281a51045d62b8eb3a7d1ce347b76f312af50cd3dc0af39c87c1737"
+checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1299,7 +1320,7 @@ dependencies = [
 
 [[package]]
 name = "sysfuss"
-version = "0.1.0"
+version = "0.2.0"
 
 [[package]]
 name = "termcolor"
@@ -1312,22 +1333,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.40"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
+checksum = "611040a08a0439f8248d1990b111c95baa9c704c805fa1f62104b39655fd7f90"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.40"
+version = "1.0.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
+checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
 ]
 
 [[package]]
@@ -1343,10 +1364,11 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.22"
+version = "0.3.25"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea9e1b3cf1243ae005d9e74085d4d542f3125458f3a81af210d901dcd7411efd"
+checksum = "b0fdd63d58b18d663fbdf70e049f00a22c8e42be082203be7f26589213cd75ea"
 dependencies = [
+ "deranged",
  "itoa",
  "libc",
  "num_threads",
@@ -1363,9 +1385,9 @@ checksum = "7300fbefb4dadc1af235a9cef3737cea692a9d97e1b9cbcd4ebdae6f8868e6fb"
 
 [[package]]
 name = "time-macros"
-version = "0.2.9"
+version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "372950940a5f07bf38dbe211d7283c9e6d7327df53794992d293e534c733d09b"
+checksum = "eb71511c991639bb078fd5bf97757e03914361c48100d52878b8e52b46fb92cd"
 dependencies = [
  "time-core",
 ]
@@ -1447,9 +1469,9 @@ checksum = "7cda73e2f1397b1262d6dfdcef8aafae14d1de7748d66822d3bfeeb6d03e5e4b"
 
 [[package]]
 name = "toml_edit"
-version = "0.19.11"
+version = "0.19.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "266f016b7f039eec8a1a80dfe6156b633d208b9fccca5e4db1d6775b0c4e34a7"
+checksum = "f8123f27e969974a3dfba720fdb560be359f57b44302d280ba72e76a74480e8a"
 dependencies = [
  "indexmap 2.0.0",
  "toml_datetime",
@@ -1531,9 +1553,9 @@ checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.10"
+version = "1.0.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22049a19f4a68748a168c0fc439f9516686aa045927ff767eca0a85101fb6e73"
+checksum = "301abaae475aa91687eb82514b328ab47a211a533026cb25fc3e519b86adfc3c"
 
 [[package]]
 name = "unicode-normalization"
@@ -1695,7 +1717,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
  "wasm-bindgen-shared",
 ]
 
@@ -1717,7 +1739,7 @@ checksum = "54681b18a46765f095758388f2d0cf16eb8d4169b639ab575a8f5693af210c7b"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.23",
+ "syn 2.0.28",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1847,9 +1869,9 @@ checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
 
 [[package]]
 name = "winnow"
-version = "0.4.7"
+version = "0.5.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca0ace3845f0d96209f0375e6d367e3eb87eb65d27d445bdc9f1843a26f39448"
+checksum = "acaaa1190073b2b101e15083c38ee8ec891b5e05cbee516521e94ec008f61e64"
 dependencies = [
  "memchr",
 ]
diff --git a/backend/Cargo.toml b/backend/Cargo.toml
index ca4b1c3..9a9b81a 100644
--- a/backend/Cargo.toml
+++ b/backend/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "powertools"
-version = "1.4.0-beta1"
+version = "1.4.0-beta2"
 edition = "2021"
 authors = ["NGnius (Graham) <ngniusness@gmail.com>"]
 description = "Backend (superuser) functionality for PowerTools"
@@ -15,7 +15,7 @@ readme = "../README.md"
 usdpl-back = { version = "0.10.1", features = ["blocking"] }#, path = "../../usdpl-rs/usdpl-back"}
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"
-sysfuss = { version = "0.1", path = "../../sysfs-nav", features = ["derive"] }
+sysfuss = { version = "0.2", path = "../../sysfs-nav", features = ["derive"] }
 
 # async
 tokio = { version = "*", features = ["time"] }
diff --git a/backend/src/resume_worker.rs b/backend/src/resume_worker.rs
index dfa4d8f..1f49ad5 100644
--- a/backend/src/resume_worker.rs
+++ b/backend/src/resume_worker.rs
@@ -5,7 +5,7 @@ use std::time::{Duration, Instant};
 use crate::api::handler::ApiMessage;
 //use crate::utility::unwrap_maybe_fatal;
 
-const ALLOWED_ERROR: f64 = 100.0; // period of 10ms with 100x means sleep has to be >= 1s to be detected
+const ALLOWED_ERROR: f64 = 20.0; // period of 50ms with 20x means sleep has to be >= 1s to be detected
 
 pub fn spawn(sender: Sender<ApiMessage>) -> JoinHandle<()> {
     thread::spawn(move || {
diff --git a/backend/src/settings/steam_deck/battery.rs b/backend/src/settings/steam_deck/battery.rs
index 2aed891..d03bfd6 100644
--- a/backend/src/settings/steam_deck/battery.rs
+++ b/backend/src/settings/steam_deck/battery.rs
@@ -270,11 +270,13 @@ impl Battery {
         let root = crate::settings::util::root_or_default_sysfs(root);
         match root.power_supply(attributes(BATTERY_NEEDS.into_iter().copied())) {
             Ok(mut iter) => {
-                iter.next()
+                let psu = iter.next()
                     .unwrap_or_else(|| {
                         log::error!("Failed to find SteamDeck battery power_supply in sysfs (no results), using naive fallback");
                         root.power_supply_by_name("BAT1")
-                    })
+                    });
+                log::info!("Found SteamDeck battery power_supply in sysfs: {}", psu.as_ref().display());
+                psu
             },
             Err(e) => {
                 log::error!("Failed to find SteamDeck battery power_supply in sysfs ({}), using naive fallback", e);
@@ -289,6 +291,8 @@ impl Battery {
             Ok(hwmon) => {
                 if !hwmon.capable(attributes(HWMON_NEEDS.into_iter().copied())) {
                     log::warn!("Found incapable SteamDeck battery hwmon in sysfs (hwmon by name {} exists but missing attributes), persevering because ignorance is bliss", super::util::JUPITER_HWMON_NAME);
+                }   else {
+                    log::info!("Found SteamDeck battery hwmon {} in sysfs: {}", super::util::JUPITER_HWMON_NAME, hwmon.as_ref().display());
                 }
                 hwmon
             },
@@ -299,11 +303,13 @@ impl Battery {
                     Ok(hwmon) => {
                         if !hwmon.capable(attributes(HWMON_NEEDS.into_iter().copied())) {
                             log::warn!("Found incapable SteamDeck battery hwmon in sysfs (hwmon by name {} exists but missing attributes), persevering because ignorance is bliss", super::util::STEAMDECK_HWMON_NAME);
+                        } else {
+                            log::info!("Found SteamDeck battery hwmon {} in sysfs: {}", super::util::STEAMDECK_HWMON_NAME, hwmon.as_ref().display());
                         }
                         hwmon
                     },
                     Err(e) => {
-                        log::error!("Failed to find SteamDeck battery hwmon in sysfs ({}), using naive fallback", e);
+                        log::error!("Failed to find SteamDeck battery hwmon {} in sysfs ({}), using naive fallback", super::util::STEAMDECK_HWMON_NAME, e);
                         root.hwmon_by_index(5)
                     }
                 }
diff --git a/backend/src/settings/steam_deck/cpu.rs b/backend/src/settings/steam_deck/cpu.rs
index 36f24c4..9a85f26 100644
--- a/backend/src/settings/steam_deck/cpu.rs
+++ b/backend/src/settings/steam_deck/cpu.rs
@@ -13,7 +13,7 @@ use crate::settings::{TCpu, TCpus};
 const CPU_PRESENT_PATH: &str = "/sys/devices/system/cpu/present";
 const CPU_SMT_PATH: &str = "/sys/devices/system/cpu/smt/control";
 
-const CARD_NEEDS: &[&'static str] = &[
+const CARD_EXTENSIONS: &[&'static str] = &[
     super::DPM_FORCE_LIMITS_ATTRIBUTE
 ];
 
@@ -274,13 +274,18 @@ impl Cpu {
 
     fn find_card_sysfs(root: Option<impl AsRef<std::path::Path>>) -> BasicEntityPath {
         let root = crate::settings::util::root_or_default_sysfs(root);
-        match root.class("drm", sysfuss::capability::attributes(CARD_NEEDS.into_iter().map(|s| s.to_string()))) {
-            Ok(mut iter) => {
-                iter.next()
+        match root.class("drm", sysfuss::capability::attributes(crate::settings::util::CARD_NEEDS.into_iter().map(|s| s.to_string()))) {
+            Ok(iter) => {
+                let card = iter
+                    .filter(|ent| if let Ok(name) = ent.name() { name.starts_with("card")} else { false })
+                    .filter(|ent| super::util::card_also_has(ent, CARD_EXTENSIONS))
+                    .next()
                     .unwrap_or_else(|| {
-                        log::error!("Failed to find SteamDeck drm in sysfs (no results), trying naive fallback");
+                        log::error!("Failed to find SteamDeck drm in sysfs (no results), using naive fallback");
                         BasicEntityPath::new(root.as_ref().join("sys/class/drm/card0"))
-                    })
+                    });
+                log::info!("Found SteamDeck drm in sysfs: {}", card.as_ref().display());
+                card
             },
             Err(e) => {
                 log::error!("Failed to find SteamDeck drm in sysfs ({}), using naive fallback", e);
diff --git a/backend/src/settings/steam_deck/gpu.rs b/backend/src/settings/steam_deck/gpu.rs
index 5c36faf..de68403 100644
--- a/backend/src/settings/steam_deck/gpu.rs
+++ b/backend/src/settings/steam_deck/gpu.rs
@@ -34,7 +34,7 @@ pub struct Gpu {
 const GPU_CLOCK_LIMITS_ATTRIBUTE: &str = "device/pp_od_clk_voltage";
 const GPU_MEMORY_DOWNCLOCK_ATTRIBUTE: &str = "device/pp_dpm_fclk";
 
-const CARD_NEEDS: &[&'static str] = &[
+const CARD_EXTENSIONS: &[&'static str] = &[
     GPU_CLOCK_LIMITS_ATTRIBUTE,
     GPU_MEMORY_DOWNCLOCK_ATTRIBUTE,
     super::DPM_FORCE_LIMITS_ATTRIBUTE,
@@ -82,13 +82,18 @@ impl Gpu {
 
     fn find_card_sysfs(root: Option<impl AsRef<std::path::Path>>) -> BasicEntityPath {
         let root = crate::settings::util::root_or_default_sysfs(root);
-        match root.class("drm", attributes(CARD_NEEDS.into_iter().map(|s| s.to_string()))) {
-            Ok(mut iter) => {
-                iter.next()
+        match root.class("drm", attributes(crate::settings::util::CARD_NEEDS.into_iter().map(|s| s.to_string()))) {
+            Ok(iter) => {
+                let card = iter
+                    .filter(|ent| if let Ok(name) = ent.name() { name.starts_with("card")} else { false })
+                    .filter(|ent| super::util::card_also_has(ent, CARD_EXTENSIONS))
+                    .next()
                     .unwrap_or_else(|| {
-                        log::error!("Failed to find SteamDeck gpu drm in sysfs (no results), trying naive fallback");
+                        log::error!("Failed to find SteamDeck gpu drm in sysfs (no results), using naive fallback");
                         BasicEntityPath::new(root.as_ref().join("sys/class/drm/card0"))
-                    })
+                    });
+                log::info!("Found SteamDeck gpu drm in sysfs: {}", card.as_ref().display());
+                card
             },
             Err(e) => {
                 log::error!("Failed to find SteamDeck gpu drm in sysfs ({}), using naive fallback", e);
@@ -99,10 +104,12 @@ impl Gpu {
 
     fn find_hwmon_sysfs(root: Option<impl AsRef<std::path::Path>>) -> HwMonPath {
         let root = crate::settings::util::root_or_default_sysfs(root);
-        root.hwmon_by_name(super::util::GPU_HWMON_NAME).unwrap_or_else(|e| {
+        let hwmon = root.hwmon_by_name(super::util::GPU_HWMON_NAME).unwrap_or_else(|e| {
             log::error!("Failed to find SteamDeck gpu hwmon in sysfs ({}), using naive fallback", e);
             root.hwmon_by_index(4)
-        })
+        });
+        log::info!("Found SteamDeck gpu hwmon {} in sysfs: {}", super::util::GPU_HWMON_NAME, hwmon.as_ref().display());
+        hwmon
     }
 
     fn set_clock_limit(&self, speed: u64, mode: ClockType) -> Result<(), SettingError> {
diff --git a/backend/src/settings/steam_deck/util.rs b/backend/src/settings/steam_deck/util.rs
index 471e2be..52eb3e9 100644
--- a/backend/src/settings/steam_deck/util.rs
+++ b/backend/src/settings/steam_deck/util.rs
@@ -12,6 +12,11 @@ pub const JUPITER_HWMON_NAME: &'static str = "jupiter";
 pub const STEAMDECK_HWMON_NAME: &'static str = "steamdeck_hwmon";
 pub const GPU_HWMON_NAME: &'static str = "amdgpu";
 
+pub fn card_also_has(card: &dyn sysfuss::SysEntity, extensions: &'static [&'static str]) -> bool {
+    extensions.iter()
+        .all(|ext| card.as_ref().join(ext).exists())
+}
+
 #[inline]
 fn write2(p0: u8, p1: u8) -> Result<usize, Error> {
     write_to(0x6c, 0x81)?;
diff --git a/backend/src/settings/util.rs b/backend/src/settings/util.rs
index ec9189e..cede8f6 100644
--- a/backend/src/settings/util.rs
+++ b/backend/src/settings/util.rs
@@ -18,6 +18,11 @@ pub fn always_satisfied<'a, X>(_: &'a X) -> bool {
     true
 }
 
+pub const CARD_NEEDS: &[&'static str] = &[
+    "dev",
+    "uevent"
+];
+
 #[cfg(test)]
 mod test {
     use super::*;
diff --git a/package.json b/package.json
index 365ca31..673391e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "PowerTools",
-  "version": "1.4.0-beta1",
+  "version": "1.4.0-beta2",
   "description": "Power tweaks for power users",
   "scripts": {
     "build": "shx rm -rf dist && rollup -c",